What is the absolute best system to apply to a balcony and covered foyer to keep it waterproof? Currently the 2 areas are plywood with a fiberglass coating that has failed and is leaking. 1 area is covered with tile and the other pavers.
Best system for waterproofing a balcony?
Dbower
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What is the absolute best system to apply to a balcony and covered foyer to keep it waterproof? Currently the 2 areas are plywood with a fiberglass coating that has failed and is leaking. 1 area is covered with tile and the other pavers.
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5,100 Posts
Is this outside? The foyer thing is throwing me off. Check out Schluter. They have stuff for exterior tile installation.
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2,403 Posts
Flashing, membrane, layer of concrete with lava rock as aggregate. Built lots of em, never a problem.
Mechanically fastened EPDM or TPO. If you need to have a walk surface there are TPO's rated for foot traffic. Or you can do EPDM with drainage mat and pavers or walk pads.
Absolutely stay away from mechanically attached roof systems if they are going to be covered up. Go with fully adhered.
EPDM makes a far better walking surface then TPO or PVC in the winter or any frosty wet conditions.
The system can be sloped for drainage then pedestals installed to put pavers over. Sticking tiles to any of these membrane systems I do not believe would work.
IF there is insulation you are putting down to slope the roof install densdeck or secure rock as a coverboard. The pavers can crush the ISO leaving you with an uneven surface. We always use 6" seam tape on anything that is going to be covered up. And of course 60 mil EPDM, if you have the extra money 90 mil.
This one will get pedestals and 2'x2' concrete pavers. 1/4" per foot tapered 1/2" dens deck 60 mill EPDM with 6" seams. There is two levels of these decks.
EPDM makes a far better walking surface then TPO or PVC in the winter or any frosty wet conditions.
The system can be sloped for drainage then pedestals installed to put pavers over. Sticking tiles to any of these membrane systems I do not believe would work.
IF there is insulation you are putting down to slope the roof install densdeck or secure rock as a coverboard. The pavers can crush the ISO leaving you with an uneven surface. We always use 6" seam tape on anything that is going to be covered up. And of course 60 mil EPDM, if you have the extra money 90 mil.
This one will get pedestals and 2'x2' concrete pavers. 1/4" per foot tapered 1/2" dens deck 60 mill EPDM with 6" seams. There is two levels of these decks.
Attachments
Why not mechanically attached? Risk of movement? I say MA for the reinforced membrane and you will have something holding it down.
balcony waterproofing
dex o tex is big here in los angeles. It's all in the flashings with the huge amount of stucco that is used here. i think they're called Diato flashings,run up the wall and incorporate a stucco screed. Fiberglass seems like the sun beats it up pretty well here
dex o tex is big here in los angeles. It's all in the flashings with the huge amount of stucco that is used here. i think they're called Diato flashings,run up the wall and incorporate a stucco screed. Fiberglass seems like the sun beats it up pretty well here
No worry about movement. Mostly risk management. Pulling up deck boards and pavers get expensive. I prefer to have as few penitrations ass possible.
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There are several good fluid-applied systems on the market - I would not recommend utilizing any type of sheet membrane system on a balcony.
But yet you recommend a coating? Sure why use something that has been proven for decades just throw a bucket of *** over it and call it good.
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532 Posts
Problem is, nuckleheads think that bucket 'o "coating" is a "system": Just roll'r' on and yer ready to go!...When typically, due to their ignorance, they may have a component or two of a complete system, which, of course fails miserably......
We were just doing some stuff on a dex o tex roof deck that was built in 1992, looked great but no freeze cycle to consider here.
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956 Posts
Agreed, typical traffic coating. Multi part process, starting with GSM flashing all the way through finish coat. Near impossible to damage unless by mechanical means. Last job we used endurokote.
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