SPECIALIST COMMERCIAL WATERPROOFERS - MELBOURNE
Feature Video
View our latest video on the left.
Hear Paul Evans, Managing Director at Findlay-Evans Waterproofing explain advantages of Using Liquid Applied Membranes.
Paul Evans is also current
President of the Australian Institute of Waterproofing (AIW),
Registered Building Practitioner & Certified Waterproofer.
Waterproofing Case Study Videos - Click Links Below
Findlay-Evans Client Testimonials & Reviews - Click HERE
The Australian Institute of Management (AIM) recently engaged F.E.W Waterproofing to resurface the Level 6 plant area which was prone to water leakage.
Liquid Rubber was used and is brilliant seamless product; we were very impressed with the finished product.
The F.E.W workmanship was of a high standard. Since having the Liquid Rubber laid down we have not experienced any water leaks.
D. Papal Australian Institute of Management (Vic & Tas) Building Manager
Rooftop Garden Remedial Waterproofing with synthetic grass
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This is Paul Evans here to present another one of our jobs that we completed a little while ago now.
We'll just call it Santorini, it's an apartment block and it's got a rooftop. Sort of al fresco garden area and the residents use this as a balcony. It was leaking very seriously throughout the building.
The builders run off from them and left them having to fix this themselves. We're
looking for a cost-effective treatment to get this sorted out for them. So we proposed that we go over the top of the tiles which is not a normal operation of ours, but to save the cost of removal all the tiles which is quite costly we
agreed to do it because the substrate and the tiles were sount. That means that they weren't drummy or popping up
all over.
We considered that that was probably a job worth doing
it. So we stripped the whole job out, cleaned out all the planter boxes and then progressed to grinding all the surfaces first to get a key up for the membrane to bond to. Then we installed the two or three coats of liquid rubber as the base coating and
after detailing all joints and
junctions throughout the whole job. Once we got a couple of coats down we moved on to our top coating system which is the thermal reflective top coat and that
went down with three coats in this particular instance built up a good body and that's including all the planter
boxes. All the planter boxes were all then treated to Arma-Blue which is a protective sheet of running sheet and also the other surfaces around the planter boxes.
We're having a synthetic glass installed so we we installed Arma-blue there as well. Were left open so drainage system still works below.
Pretty complex job, some of the areas were fairly tiny and we had to work at heights in some areas and you can see there in the video that we've harnessed up and working to
prevent anybody falling out of the edge.
So forth a little video here showing just a panoramic shot of the grass installed the synthetic grass so moving
on from that the finished job so they come up very attractive actually once
the planter boxes were all reinstated and the grass installed we have very
high quality grass and store that does their work for us. They work in conjunction with us. Look all in all the customers were very happy with the with the look and the fact that we dropped all the legs there was other sections
it which we haven't shown here there was number of different other rooms that we
did as well but look if you go job like this that you need us to look at we have to come and look at it and give you an
appraisal and an estimate on on rectification cost so give us a call on eight eight one two two nine nine eight in Melbourne or just visit our website.
Case Study - Balcony Restoration with Synthetic Grass - Melbourne hotel
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Hello this is Paul Evans, Findlay-Evans waterproofing. Got a case scenario here that I would like to talk about. It's a commercial balcony on a hotel in the city.
Leaking Balcony
This balcony has been an extension on to an existing concrete structure. So the extension in the past that has been built is made of timber.
Obviously for a cost-saving exercise back when it was done. The method of construction is
something to be looked at. They used the chipboard flooring on the timber joist over, and then poured discrete concrete screed on top of that and then proceeded to tile it with the crazy paving slay.
Obviously from the photos here you can see that the deterioration
of the chipboard material is severe and dangerous.
Balcony Repairs & Waterproofing
So we were engaged to remove, being builders, and the carpenters on our team we can carry out this type of work fairly readily. So we replaced a number of the joists and replaced the timber flooring with the Scyon sheeting,
which is a compressed fibrous cement sheeting tongue-and-groove scenario for those who don't uninitiated.
Once that was all installed we went about basically waterproofing it from there up.
So that's detailing all the joints,
junctions and penetration points and drain we installed two new drain points. We had our plumber come in and do that for us and connect that up to the storm water system to alleviate the water shedding.
Then we went ahead and waterproofed a base coat
and sealed everything up. We then installed the reinforcing fabric over the entire area which strengthens up the membrane and makes it more robust. The the falls were all built into the sub floor in
this situation.
So we had the falls working quite nicely as far as we didn't need to put a screen on it. So we waterproofed it and with their mesh then after that was fully waterproofed with that happens with a four coat system so it ends up with a pretty considerable
amount of waterproofing material on it.
The waterproofing completed we then proceeded to install our Arma-Blue protection sheet which all membranes need to be protected with.
We installed that and then had the grass installed over the top of that so that isolates the grass from the the membrane itself so when people are walking on that and you get the abrasion scenario it doesn't affect the membrane.
The internal repairs we carried out as well we've replaced the ceilings and the cornices and then we also repainted as well the whole section.
This got the kitchen up and running pretty quickly rather than waiting on a bunch of other trades to sort of get involved.
Our team do as a one-stop shop scenario and handled the whole thing as a turnkey operation.
There's a lot of little bits and pieces that we carried out as well just to finish the job off and turn it to be a wonderful job.
Thanks for listening this is Paul from Findlay-Evans Waterproofing if you care to give us a call on 8812 2918. Thank you.
Case Study - Health Care Facilities Waterproofing
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I am Paul Evans from Findlay-Evans Waterproofing. This is a video just to show an overall aspect of health care facilities in Victoria. We've been working on a number of them now so we thought we'd just showcase a few of them.
Old torch-on membrane
This is Epworth Hospital, a multiple roofs job that we embarked on. The torch-on membrane there was causing a lot of grief, so that was removed and replaced with our system. Our system has got a fiberglass inter layer which is built into the membrane system. These jobs, in particular hospitals and they need to keep operating 24/7 which is a challenge for waterproofer. We managed to work it
around and a set up a method of waterproofing it in stages so we wouldn't expose a whole area all at once and potentially causing ingress of water into critical areas such as operating theaters and also power plant rooms.
Synthetic grass - staff area
There was a sort of a separate area again for the recreation area or as we might put it smoko area. Sometimes people want to retreat and get outside in sunshine, have their lunch and so on. This area was in a very poor condition so we stripped it all back and took it back to
zero. Then waterproofed the whole area and installed synthetic grass system which
came up with a very pleasing aesthetic as well as combating the waterproofing.
Sunshine Hospital
Sunshine Hospital had multiple areas. There were
three large stairwells that were all leaking that had a
rubberized sheet system
on it originally. So on the stairwells we actually kept that intact and then we did that over the existing system. This was favored only because of cost and also for time so the system that we applied over the top gives it an entire membrane in itself.
Now it's completely watertight. The roof itself was again BU, and it was in a very poor condition. We stripped that all up, got back to the
original screed. Then did detailing work and prepared everything for our system to go on.
Thermo Top Coat
Once our system was on, a top coat was put down over the top to give it a bit of durability. This was all tested and made sure everything was all good. The clients and staff were extremely happy with the end result with no water ingress during the process of doing the works.
The infrastructure side of things is something we specialize in. We are a company that are well versed in the many facets of hospital workings and getting in and out and onto the roads is often difficulty but we managed to do that and
keep everybody happy. That's what it's all about. Thanks for listening. This is Paul from
Findlay-Evans Waterproofing. Call us in Melbourne on 8812 2918. Or the website again is www.waterproofingfew.com.au. Bye for now.
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Case Study - Balcony Restoration - Waterproofing & Reinstalling Pavers
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Hello Paul Evans here from Findlay-Evans waterproofing. Back again, we got another story on a prominent landmark accommodation in Portsea.
We were asked to come here and restore a balcony that was leaking badly on one of the apartments.
We set about stripping up the whole area. First of all, with the existing
pavers to get back to the original membrane. It was a fairly complex set up here, with a lot of scaffolding and equipment used to export and import materials. Also a lot of
man labor hours as well.
We got it back down to the original slab and then set about re-screeding it with quick set screed. Given that we were doing this in June/July period, we had the weather against us. And in this case we had a two part primer to go first to combat the moisture in the screed and the slab. Once that was down and cured. Then we went on and applied our Liquid Rubber membrane with a fiber glass inter layer to give it more durability.
Once we had multiple coats of Liquid Rubber, we put a Mocha coat and put down brand new imported pavers. Installed by our expert team of pavers with infinite detail.
Once we got all that set up, we cleaned the job up completely and reinstated everything back to normal.
At the end of the day we ended up having a very satisfactory result with the customer being very happy.
If you want to know any more details please give us a call on 03 8812 2918.
Case Study - Commercial Tiled Balcony Remedial Waterproofing
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Commercial building
Hello this is Paul, Findlay-Evans Waterproofing. Just here today to show you another job that we've recently completed. This job is a commercial building with a number of different balconies. This job was approximately 8 years old when the tiles started lifting and erupting of the surface. There's great amount of calcification coming through the joints in the tiles. So there was great evidence that there were problems below. The original membrane was laid on the flat surface of the slab, then the screed was applied over the top of the membrane.
Retaining original screeds
There's a shot here showing inspection of the original membrane below. The screed above it proved to be in reasonable order. Some parts were a bit lousy so we had to fix that but those were only small areas. So we retained the original screed in this case and the membrane under was working as a secondary barrier. We screeded up areas that were low and had poor drainage to the outlet points. Those outlets needed some extra plumbing works done. So we installed new puddle flanges to make sure the water control was being directed down the pipes.
Installing Liquid Applied Membrane
Once in place we moved ahead putting a new membrane. This was carefully detailed specifically in certain areas. Then we went ahead and laid our Liquid Rubber membrane introducing an inter-layer of fiberglass mesh to give it some toughness.
That was then over coated with Thermo top Coat giving it a bit more robustness and durability.
Then balconies were tiled while our team kept on working with the tilers to finish off the job.
This job had many facets of water ingress areas which we fixed.
Case Study - Instant Grass
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Hello this is Paul Evans, Findlay-Evans waterproofing. Got a case scenario here that I would like to talk about. It's a commercial balcony on a hotel in the city.
This has been an extension on to an existing concrete structure. So the extension in the past that has been built is made of timber.
Obviously for a cost-saving exercise back when it was done. The method of construction is
something to be looked at. They used the chipboard flooring on the timber joist over, and then poured discrete concrete screed on top of that and then proceeded to tile it with the crazy paving slay.
Obviously from the photos here you can see that the deterioration
of the chipboard material is severe and dangerous.
So we were engaged to remove, being waterproofers & builders, and the carpenters on our team we can carry out this type of work fairly readily. So we replaced a number of the joists and replaced the timber flooring with the Scyon sheeting,
which is a compressed fibrous cement sheeting tongue-and-groove scenario for those who don't uninitiated.
Once that was all installed we went about basically waterproofing it from there up.
So that's detailing all the joints,
junctions and penetration points and drain we installed two new drain points. We had our plumber come in and do that for us and connect that up to the storm water system to alleviate the water shedding.
Then we went ahead and waterproofed a base coat
and sealed everything up. We then installed the reinforcing fabric over the entire area which strengthens up the membrane and makes it more robust. The the falls were all built into the sub floor in
this situation.
So we had the falls working quite nicely as far as we didn't need to put a screen on it. So we waterproofed it and with their mesh then after that was fully waterproofed with that happens with a four coat system so it ends up with a pretty considerable
amount of waterproofing material on it.
The waterproofing completed we then proceeded to install our Arma-Blue protection sheet which all membranes need to be protected with.
We installed that and then had the grass installed over the top of that so that isolates the grass from the the membrane itself so when people are walking on that and you get the abrasion scenario it doesn't affect the membrane.
The internal repairs we carried out as well we've replaced the ceilings and the cornices and then we also repainted as well the whole section.
This got the kitchen up and running pretty quickly rather than waiting on a bunch of other trades to sort of get involved.
Our team do as a one-stop shop scenario and handled the whole thing as a turnkey operation.
There's a lot of little bits and pieces that we carried out as well just to finish the job off and turn it to be a wonderful job.
Thanks for listening this is Paul from Findlay-Evans Waterproofing if you care to give us a call you want to discuss course on 8812 2918. Thank you.
Why Waterproofing Membranes Fail?
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This is showing an inferior product which has been laid on here. It's full of holes and you can hear this when I do this. See here the whole membrane has lifted. It's not adhered.
This is not Liquid Rubber. This is Wetsuit this material. Could be due to poor preparation. Could be a layer of grime and dirt underneath there. Something along those lines.
You can see in here, it's a cold tar base and the other side of the membrane is filthy. So the preparation is lacking.
Case Study - Waterproofing Under Concrete Buzz-On Pavers
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Introduction
Hi, this is Paul Evans, Findlay-Evans Waterproofing.
We're here to do a case scenario about the Doncaster Police Station. We were working with Rob Morgan who's a prominent rectification builder at Morgan Constructions. He asked us to go into the Doncaster Police Station.
How F.E.W. stopped the water leaks
We removed all the pavers and stockpiled them for reuse, which were sat on concrete pads which we call cow pads. So we basically removed all those pads. Then we cleaned up, detailed and rectified all the main issues with the old membrane system. There was an old PVC membrane system which had shrunk back from all drainage points allowing water to migrate down beside the drains instead of going down in them that was the main problem with this one.
Once all all cleaned up, we applied our Liquid Rubber system with fiberglass inter-layer to beef up the membrane system. We detailed everything quite thoroughly to make sure it was nice an tidy, and water tight.
The air-conditioner system had to be rolled out of the way with the use of help of air conditioning experts. We moved that out on rollers as you would in the Egyptian days.
Then we re-installed the pavers on buzz-on stands which were put on pieces of Arma-Blue which is our protection sheet to isolate it from the membrane system. These buzz-on stands can be screwed up and down to get the heights of the pavers correct.
Re-installing concrete pavers over waterproofing with buzz-on stands
Once we had all the pavers in position, we decided to cap the planter box which was also a suspect for leaking, as they didn't want to use the planter box anymore. We did this by framing it up and implying his inkling sheet over the top of it and capping everything off around the bottom of the floor wall junctions.
We installed a flashing just to make it neat and look nice. There was a gap of some 30-40mm which didn't look particularly attractive so we flashed it all off just to make it look like nothing to do if waterproofing but just purely for aesthetics.
Once we got that sorted out we tidied everything up and cleaned it up. Everybody was really happy with the job and Rob Morgan, the builder was extremely happy as well. If you want to know any more about the job or have a job similar to this, please give us a call in Melbourne 8812 2918 or visit our website www.waterproofingfew.com.au
Case Study - Waterproofing balcony
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Hi, this is Paul Evans, Findlay-Evans Waterproofing, Liquid Rubber Melbourne.
A balcony restoration in Brighton East. The builder had come back and supposedly carried out rectifications to a leaking balcony. It still leaked after they had finished. Apart from the litigation side of things we were asked to come in and solve this problem properly.
We set about stripping the entire balcony for them and removing all the existing tiles, making investigations as to where the actual water was coming in.
Once we got to the bare bones of it, we could see what was going on. There were multiple mistakes including wrong falls, no jointing, inadequate membrane used that is not suitable for outdoor use.
We were compromised slightly by the threshold of the rear door. We actually wanted to install a screed and lift it up so we'd have more falls but it entailed a large sum of money so the owner elected not to do that. We therefore kept the falls to a bare minimum. We got just enough of screeding here and there to get the water rolling to the right direction. It's just okay. Not quite where we'd like it but just okay.
So we put on our premium Liquid Rubber system to make sure that there was no leaks in the future. Then we re-tiled the whole surface with brand new tiles and caulked it all off. As you can see from the photos the job came up really nice and the owner was extremely happy.
Free Guide To Below Ground Waterproofing Systems - Click HERE
Case Study - Pier & Beam Waterproofing
How to Waterproof Under Concrete Slab
Findlay-Evans Cloaking Method
Waterproof Retaining Walls
Using Liquid Rubber Membranes
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Hello, it's Paul Evans, Findlay-Evans Waterproofing and in this case a bit of Building Services Australia.
Ming, Mr. Ming as we call him, fantastic guy, had been through the ringer. This chap had a brand new house built, one of three built on a big block in Doncaster. The builder had been back to try and stop the water flowing down to this gentleman's house which basically had a swimming pool underneath.
I actually meat the builder on site by coincidence and told him how to properly do the waterproofing, but he thought he knew better. So he went about waterproofing his own way which is a piece of plastic from a large hardware store and of course when that was all done and back filled it started to leak again.
Ming called me back and said Paul, you've got to help us. So we went about digging right down to its' core cause once again. We installed all new drainage system and had our plumber fabricate a special 100mm pipe into so it wouldn't crash under the weight of the back fill.
It was a really tight situation, our applicators were fantastic. They got down and got stuck to it and did it absolutely perfectly. We put our Arma-Blue protection sheet down to stop the membrane from getting damaged. Then we installed the plumbing system which was done by MA Dillon. Then back filled with crushed rock.
We were also asked to carry out concreting works. we had our concreters come in do some excavation and concreted various sections colour matching everything.
Ming was very very happy with the results and reported some months ago after some huge rains we had in Melbourne that it was bone dry inside. That is music to his ears and ours.
Thanks for listening and by for now.
Case Study - Below Ground Tanking for Retaining Walls
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Introduction
Hello, it's Paul Evans, Findlay-Evans Waterproofing.
Here we have another case scenario to share with you. It's a below ground basement that was built for an engineer and wanted to make sure everything was hunky-dory. So, we basically went to great lengths whilst having to deal with some bad weather. Luckily Liquid Rubber can go on a slightly damp surface. It will take a bit longer to cure but it can be done.
Findlay-Evans Method
There was a lot of hand detailing there, particularly the cold joint at the bottom. We basically did all the detailing one day and came back another day to spray. Once the membrane was cured, we installed Arma-Blue Protection Sheet to protect the Liquid Rubber Membrane and to form a secondary semi-waterproof layer.
This was quite a difficult job in terms of access which was quite confined which you can see. The client was happy with the results.
Waterproof Retaining Walls
Using Liquid Rubber Membranes
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Introduction
Hello, this is Paul Evans, Findlay-Evans Waterproofing.
This is a small case study on a cloaking job we did.
The Cloaking Method
We call this cloaking because we spray Liquid Rubber onto a polyethylene fabric which is being draped up the back of the wall. In this case we're spraying with our Liquid Rubber and a special twin head spray gun applicator unit.
Hand Detail Preparation
This is all detailed by hand and then sprayed. In this case a brick wall was laid in front so the cloaking was behind this to prevent water from migrating in behind the retaining wall. It goes to show we can spray even directly on clay surface. Sometimes we do that with peer and beam jobs. Thanks for listening.
Waterproofing FAQs -
What Are the Different Types of Waterproofing Membranes
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Best waterproof membrane
I often get asked the question, "What are the different types of waterproofing membranes, what is the best waterproof coatings to fix water leaks for roof, my balcony, basement, retaining walls.
There are three basic membranes on the market. There's a lot more but those three that sort of come out more commonly.
Sheet waterproof membranes
Torch On Membranes – these are Sheet Membrane which is commonly welded with heat torches.
Bituminous Sheet Membranes commonly bonded with an adhesive.
Liquid Applied Membranes – spray apply or brush & trowel application.
Liquid waterproof membrane
Liquid Rubber is an Elastomeric, Seamless & Flexible One Coat Spray On Waterproof System for Roof, Balcony, Retaining Walls & Basements.
Waterproofing FAQs -
Advantages of Using Liquid Applied Membranes
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Some of the advantages of using liquid membranes are numerous but to try and short circuit it, they're flexible. This is a major part of it.
They move and rake with the building. They are able to be applied in to areas which other sheet type membranes can't be. They can be terminated and bonded to the surface that you're putting them on to. Sheet membranes don't always allow that to happen.
It's not really a competition between sheet and liquid, but I'm trying to give some of the advantages of using liquid, which is why we do use liquid membranes.
Liquid membranes also are quite quick when need be. If the weather conditions allow, we can do about a 1000m2 in a day, which is pretty substantial coverage.
We're in, we're out. We get the job done, and it's curing out pretty quickly with our instant set material.
The bonding side of it is critical as far as waterproof membranes. Often other types of membranes will de-bond over a period. Then once they de-bond and start to leak, you can end up with a waterbed type effect. The water leak might be some many meters away from where it actually comes in to the building, which is a crucial part of it.
Everybody might look for a leak at point A but it's actually coming out at point B. Whereas liquid membranes, are fully bonded to the surface. If there's a leak, if someone does puncture there membrane somehow, the leak will be where the puncture is.
You can easily rectify it and repair it in a flash. That's a very, very good way to go about using liquid membranes.
Waterproofing FAQs -
How to Waterproof a basement
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The footings of the basement and retaining walls are critical. It's usually the "live" joint as we term it. That's the joint between the slab or the footing and then the wall is in place on top of that.
This is usually where a leak will occur if it's going to leak. Particular attention is paid by all our applicators. FEW methodology is to get down on that by hands and knees basically and get right in to that joint with brush on material. This is then applied thoroughly in to that joint to make sure that that joint will not leak. Even if you don't put another membrane on it that joint will not leak. This is important.
What we do is we get right down, get it coated, get two or three coats on there, and prepare it up. If it's a nice clean junction, we'll actually use a polyethylene fabric on that as a reinforcement barrier as well that's embedded in to the liquid rubber. Then once that's done, the overall membrane is applied over the top.
Effectively on that joint, you patch over about five or six coats of membranes. You can understand it's a very substantial part of the job and a very substantial coating that goes on it in retrospectively.
After that's done, the coatings are on and they're all cured, we then use a protection sheet to protect that beautiful work that's all just being done. The protection sheet that we use is a sticky back material, which means it's a peel and stick. You rip the backing of it, stick it on the membrane so that it doesn't shift and move about when the excavators are coming back in to backfill those areas.
This is critical because otherwise, vines, stones, and things can get down the back of conventional type protection sheets that will cause an amazing amount of damage to the membrane. This will puncture the membrane and start to leak.
Quite often, I'm being faced with builders who think they know what they're doing. They'll put the protection sheet in, backfill with scoria or crushed rock, and so on. Then after it sets out, it's leaking. Why?
Once it's dug out, we understand why because you pull the protection sheet out. It's full of stones and everything behind, lots of little holes in that membrane that's all going on there. It's not just our membrane, this is other membranes as well. It's critical to protect the membrane, very often overlooked.
Waterproofing FAQs -
How to Waterproof a Basement - Our Best Practice
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The practices for doing retaining walls and basements are critical. In these areas, they're going to be usually backfilled so that you get one shot at doing this and that's it.
The preparation is paramount. The surfaces must be absolutely clean, preferably as dry as possible. Our material will take some minor amounts of moisture but generally they need to be bone dry.
This is always a challenge because they're underground usually. Of course, with inclement weather, you have water coming in all the time. It needs to be carefully planned. Anybody in construction needs to prepare it properly and think about how they're going to do this. It's always disregarded and disrespected actually in the industry.
The best way, simplest way is keep it clean. Keep it dry. Keep the surfaces smooth and as harmonious as possible so the membrane will bond to it and you don't have little holes and divets to fill up all the time. This is a paramount part of preparation, which is our meticulous way. All our applicators go about and are trained in this fashion.
Waterproofing FAQs -
Can a Balcony be Waterproofed Without removing Tiles
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Waterproofing balconies can be quite tricky. They are often tiled, some aren't, but mostly they are. People will often ask us, "Paul, can we come in here and put a membrane over the top on those existing tiles?" Obviously, it's cheaper to do that because you don't have to remove the tiles and everything else that's underneath it.
The danger here is that the substrate, being the tiles themselves, needs to be sound. It's critical that it's sound because if you are putting any sort of membrane over the top of loose and drummy tiles, drummy being they're not bonded correctly. If you tap underneath, you make a drumming sound. That's why it's called drumming.
If you try to put a membrane over the top of that, there is a very, very good chance that it's going to come off. The tile will come away with the membrane. In doing so, it will tear the membrane. Even a highly flexible membrane can still be damaged by this sort of occurrences.
We tend to recommend against putting membranes over the top of tiles. There are some minor, specific cases where we'll do it but only a few. Generally, the balcony should be stripped right back to zero, go right back to bare bones.
That can be right up back to the actual structure, which if it's a very bad, has been leaking very badly over some years, this is the way to go because you can check the structure, and as certified builders, we can check actually do that. We can check the structure and make sure that it's not rutted out. There's been a number of balcony collapses in recent times and unfortunately some deaths. This is something that needs to be checked thoroughly.
If there's damage, we'll replace that damage and as Registered Builders we can do that. Once that's done, we can rebuild the whole balcony from the ground up. We usually use more modern materials that are available on the market today, which is called a scyon board, and that's a really top notch base to work from.
Once that's down, we then apply our membrane. We use reinforcing materials in our membrane to make sure that it's super strong. Then a screed will be applied over the top of that membrane to get the level so the water will run to the draining system, below the tiles, not on top of the tiles. This is a crucial part of tiling.
The biggest misconception for tiled surfaces is that water runs off the top of the tiles and goes to drainage. It does that but that's not the critical part of it. It also loses its way through the grout lines because even a freshly grouted balcony will shed water first a period of time.
Then the grout will shrink. It will get minor tiny cracks but water will seep in to those cracks, go down underneath the tile and hit the membrane, which is there.
This is a crucial part of this formula because we put a membrane on the bottom. We put the screed down. Then we put a membrane over the top of that screed. Then the tiles are fixed to that membrane. This allows the water then to flow through the tiles.
This is crucial and everybody needs to really pick up their ears. It does flow through the tiles. They might laugh and say, "Oh, now you need silicone. That will stop that." All the rest of it, it doesn't work. I guarantee you this.
I’ve had over 35 years of experience, I've seen so many of these jobs with people and really well qualified builders stand there and talk word on the face, "Mate, it will not leak through the tiles," and I can tell you it does, all right? I’ll get to the point wherever I need to. This is the way I'm going to do it.
The whole issue is that membrane underneath the tiles needs to be substantial membrane, of course. The water hitting that membrane needs to flow through the draining system. That might be puddle drains, strip drains, whatever it might be. It depends on the design.
Once the water slowly, slowly works its way through to that drain, it will go away, of course. Now, while it's doing that, that membrane needs to be able to support water. When I say support, where I mean hold it up. I mean be able to coat with that water over a long period of time. Because as you can imagine, the time that water works its way through the grout lines, gets through the adhesive, and it does work its way through the adhesive.
The adhesive needs to be the right adhesive so it can support that water. Again, it's got to be a submersible type adhesive. This will then allow the adhesive to remain intact and not re-emulsify, which I see many, many times, and that's the white stuff coming out through the grout lines. The extra adhesive breaks down with water. The water then moves its way through the membrane.
It's sitting on that membrane for a very long time. If you grab a bucket of membrane or you look a lot of membranes off the shelf, you're going to label and say, "This is not for ponding water." This is a crucial part of waterproofing. Ponding water often destroys membranes.
You might say, "It's a waterproofing membrane. How can it destroy it?" Well, it does. It's not designed to hold water. You must have a membrane that holds water. Liquid rubber holds water. It's designed for ponds, swimming pools, reservoirs and the like. It's designed to actually contain water. This is a major part of why we use this material.
The water then slowly, slowly, works its way down to the drainage points. The membrane stays intact because it's suitable. The adhesive stays intact because it's suitable. Of course, the tiles are made of fortified clay, so that's not going to be destructed too readily. This is the waterproofing system, and it's crucial to waterproofing.
Waterproofing FAQs -
How Long Will Waterproofing Membrane Last?
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Membranes will last in varying degrees. The average life span of most membranes is around 25 years to 30 years. The industry sort of dictates a 10-year warranty on everything. It seems to have locked in on everything. Yes, we offer a 10-year warranty. If we need to, we can offer 10 years, 15 years, 20 years or 25 years if we need to. That's sort of the going situation as far as our terminology for warranties if you like.
But the reality of it is if you’re going to put a membrane down, you really want it to last. We use high quality materials, not the cheapest on the market I can tell you that, but they certainly are a high quality material. The reason we do that is we want them to last.
As the consumer is using this product, again, at the end of the story, they don't really want to be calling us back in 10 years, 15 years to say, "The membrane's broken down. It doesn't work."
Given that, the timing on it will vary depending on its use, of course. It's like putting that carpet in your home. If you just traipse over it and you bring the army through it every day, it's going to last a very short time. Isn’t it? If your old couple that use it every day now and then potter about your carpet, it's going to last forever pretty much.
This is the same analogy it goes with membranes. It's a wearable surface like any other no matter what membrane goes down. It's subject to wearability. It's subject to how it's treated afterwards. They do get mashed about by other sub trades behind.
For example, I'm not putting it down but the air-conditioning guys and people working on the roof, they tend to be a little bit rough, put the tool boxes down and gouge in to the membrane, throw down spanners, throw down hot materials, drills holes at a metal and the hot metal goes down, burns through the membranes. This is all membranes. It's not just ours.
We see atrocities all day every day. I'm not going to tell you. It does wind us up. People should be more careful with membranes but if they are, they last for a very, very long time.
Case Study -
Commercial Roof Waterproofing
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Hello this is Paul FEW waterproofing another case study for you here:
Wellington Road Mulgrave. Working for a builder whose names Rob Morgan Rob Morgan constructions top builder, knows what he's doing and we do a number of
jobs for him. This is a difficult job because that we had to access was limited to the fact that we had to get everything off and on by crane we had to
pull up a ballast on this one with the bitumen base. So we broke it all up in especially in two pieces and then all the light stuff was vacuumed off with a large vacuum truck. We've been said about months ago it all cleaned up with all the rubble removed there's a vacuum truck there we had did all the manual
labor of actually pulling up all the bitumen layers by scraping and removing and valiant which was then later cleaned
off in large lift bags. Once we were done with the prep the screed has moved in and they've got a large set up big crew and got this job done in in two or three days and it's a prime of going down first and then that's the speed Pro guys
working really hard work as those guys and got stuck you know to terrific job for us. and highly recommended as well so with that they settle we set all levels up between us and then they work to that to the magnificent job my team actually said it's probably one of the best screeds I've ever seen on a rooftop so well that's saying something.
There's a lot of collective felt you know experience and much more - one of the best ones I've seen by the way and
so it's all good once the screed was down with let it cure out then we proceeded to put a little rubber coatings down put two or three coats of that down and then we went in with our print and topcoat system that also it
was about three coats that down as well all detailing and you know extra tether points put in and we had to come back after the two other points we put in and do some touch-ups and get a get a
finished job tidy up the whole place and everybody's pretty happy with that one so well if you go similar job please
give us a call on eight eight one two two nine one eight in Melbourne otherwise hit the website waterproofing
we look forward to hearing
from you
Case Study -
Commercial Roof Waterproofing
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Hello, this is Paul - Findlay-Evans Waterproofing, Liquid Rubber Melbourne. We've got a case study here on a roof top in Albert Street in East Melbourne. It's the CoInvest Building. We were asked to come in by a facilities manager to inspect the roof first of all to see if there's anything we can do about it.
This roof has been leaking for many years and many have come and tried a remediation on it. There is a big underlying issue on this particular roof. Many people have come and put patches all over it to try and stop leaks intermittently.
The leaks are basically being caused by in this particular case by a bitumen base that's been laid when the original building was built. The someone has come along and put an acrylic membrane on top of that. The gas builds up from the bitumen as soon as it heats up but blowing holes in the membrane and causing leaks.
So we had a task ahead of us to get that one sorted. So what we had to do was to work our way through the various areas. As you can see it's an extremely busy roof with lots of equipment. We opened up some sections and found the bitumen was throughout the whole building which was naturally expected.
Once we thoroughly cleaned the job, we went through meticulous preparation. Each and every up stand, joint, junction, post - everything had to be detailed at length. Then a reinforcing fabric was installed over the entire job and all the pop up stands as well just to make sure we had a good tough membrane.
The areas where the bitumen had caused a lot of devastation down in the existing membrane we cut out completely. We treated them to a coat of our Thermo coat to isolate the bitumen. Then filled it with grout and floated it up. There were lots of low spots in the roof that was allowing water to pool. They were also floated up with screed and coated with our system.
Once we had everything prepared with the fiberglass matting we then proceeded to put our Thermo Top Coat on. This went down in many layers and getting everything detailed up. Once we had it to a stage where we could work out where the out gassing was happening we out in many vents and the vents were delineated with the yellow colour - that and all trip hazards were all delineated with yellow so that there was no potential trips.
The job was completed and the project manager came to inspect it and was delighted to see the end result and the job worked out to be really good.
Case Study -
Remedial Waterproofing on concrete
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Hello, this is Paul - Findlay-Evans Waterproofing, we've got a case study here on a concrete roof. In this particular building, it's Allied Mills in Melbourne. The old membrane was basically out of its use by date which had probably been there since it was built. The downstairs of this roof was suffering from water ingress which is a big no no at a flour mill. So we had to stop the water.
The concrete roof was basically in good order but the membrane over it was gone. We had to remove the defective membrane system by a lot of manual labor.
Access was a bit limited in this job and quite high up. We scraped off all the old polyurethane membrane which was deteriorating rapidly. Once we removed the old polyurethane membrane off the roof we then went about cleaning the concrete roof to ensure we had a good bonding surface for the Liquid Rubber membrane.
Some areas were a little bit low so we screeded them up with special flexible screed. That then was over coated with Liquid Rubber membrane. To protect this concrete roof it's important to make sure that Liquid Rubber is used because it's a highly flexible membrane. The high flexibility allows the building to move and shake. Which in this case the building being quite tall moves quite a bit.
Once we had our Liquid Rubber down we put in a fiber glass inter layer to make it more robust. Then over coated the whole system with Thermo Top Coat. This reduces the temperature below quite considerably. Which helped with the internal ventilation.
Repair Leaking Roof with Liquid Rubber
Roof Remedial Waterproofing -
Thermo Top Coat
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Hello, it's Paul Evans, Findlay-Evans Waterproofing & Liquid Rubber Melbourne.
Just got a case study here we'd like to share with you. It's a very tricky industrial roof in the city. Actually on a historic building, a power station that provides power for a lot of the new high rise buildings that have been built up around it.
We were asked to come in through another contractor. The builder in this case, who needed professional waterproofers and a specialized system to rectify a badly deteriorated roof, which was leaking into the power station.
So we took the challenge on and
developed a system that would work and were very happy with the results. We'd just like to share that with you.
In a nutshell what it pretty much is was five separate roof areas over the whole span of the building. Being an old Victorian building, various roofs were built up over time.
So each roof had to be pretty much dealt with individually. We pretty much pumped up all the grout to the roof from the ground floor. A task in itself and then spread that across the entire surface filling up all the voids and cracks. Giving us a new surface to apply a specialized membrane.
We let that dry out and then we started spraying our Liquid Rubber membrane over the top and built that up to a 1.5mm thickness. Specialist areas were treated with reinforcing mat. This one was sprayed with a dark grey rubber to help reflect the heat a little bit.
It also became quite handy for the builders when they had multiple stairs joining into various levels.
The job was very successful. The client was very happy with the results.
Case Study -
Commercial Roof Waterproofing
Heat Reflective Roof Membrane -
Thermo Top Coat on Metal Roof
Remedial Roof & Balcony Waterproofing
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Hello, this is Paul, from Findlay-Evans waterproofing. Just would like to share a job that we have recently completed.
Just to describe step by step how we went about it.
It was reasonably small home, by the seaside in Victoria. The owner who's an architect decided that he would like to have green roof. So we went ahead and waterproofed his rooftop balcony. This was laid with scyon sheeting first.
Preparation was fairly methodical in this case. We went over the top of the polyurethane that the builders had installed. Every single joint and fixing point throughout the whole area. Then we masked off and got ready for spraying. We went ahead and got the Liquid Rubber coating applied. Nice coat of approximately 1.5mm thick overall in one harmonious spray. No joins no seams, which is a very important part in our view.
This way no water can get underneath and the membrane is fully bonded to the surface.
After the Rubber was down we allowed that to cure for about 2-3 week in this case. Then we came back can installed a product called Arma-Blue which is a self adhesive protection sheet. That protects the membrane from any damage.
Later on we came back and installed the fake grass and made sure there was no bubbling and that the job was all finished off nicely.
Waterproofing Remedial Work -
Spray Application
Waterproofing Concrete -
Repairs & Maintenance
Crack Injection Information -
Repair Concrete Cracks
Case Study - Waterproofing Metal Tanks
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Introduction
Hello, this is Paul Evans from Findlay-Evans Waterproofing. Just another case scenario. Here we are dealing with a bottling plant, where the stainless steel tanks had some rust pit holes in them and were starting to get minor pinhole leaks.
Liquid Rubber for water tanks
These tanks service hot water just under boiling point and also the water inside is being used for bottling, so it needs to be safe for human consumption. The water that comes out of these tanks and the material obviously we use is certified for potable water.
OH & S - Confined Space
Difficulty with this job was the tiny man hole for our applicator to get in and out. So, we had to have a spotter the whole time outside the tank just in case of some emergency might come up. Our applicator basically had to climb through the man hole and everything was fed to him. Whilst he worked, he had to come in and out quite a lot to have breaks working in that environment even though Liquid Rubber is non-toxic. It is safe and all the rest of it but just because it's a tight space he just needed to get out and take the respirator off. Even that was just a precaution.
Once the tank was fully coated with Liquid Rubber, we then over coated using Thermo Top Coat so that it gave it a more durable surface for the just boiling water. The whole job went really well all in all and the clients were happy.


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