Best Waterproof for Concrete Roof
Best Waterproof for Concrete Roof
(OP)
What is the best waterproof material/method to be used on a concrete roofdeck? What is the latest and which do you recommended? Pro and Con? Thanks.
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Best Waterproof for Concrete Roof
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RE: Best Waterproof for Concrete Roof
All of these (and more) are variables that must be considered before selecting a roof membrane system.
RE: Best Waterproof for Concrete Roof
So what is the best membrane. Is there one that can double as heat insulation? Thanks.
RE: Best Waterproof for Concrete Roof
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RE: Best Waterproof for Concrete Roof
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RE: Best Waterproof for Concrete Roof
Dik
RE: Best Waterproof for Concrete Roof
RE: Best Waterproof for Concrete Roof
This would not be recommended for a typical roof membrane system as there is almost always an attempt to reduce the amount of walking on the roof surface as this can damage it.
For your application, I would look at several options:
1. A membrane system that will handle pedestrian traffic. Something like a Vulkem 351 system is good for this. Other manufacturers have similar fluid applied urethane systems that can be reinforced with a polyester or glass fiber scrim.
2. A typical membrane roof system (PVC, TPO, Modified Bitumen, etc.) with pavers installed over the roof membrane system.
For either system you could install insulated pavers to improve the energy efficiency, keeping in mind that it won't be a large insulation value, but some.
If you are going to have pedestrian traffic on the roof, pay close attention to placement of guardrails and other safety features.
RE: Best Waterproof for Concrete Roof
I would check out what kind of roofs the Owner already has. If there is a similar structure, ask how they feel about maintaining another one of those roofs.
if your structure can hold it and it doesn't blow your cost, you could put a topping slab above a waterproofing layer, which would open the door to a whole bunch more products (sheet waterproofing, elastomeric, crystalline, etc...), and give you design flexibility for the recreational use. Also, you wouldn't get the UV damage. If you do this approach, check that the topping slab won't move. insulation could be over the waterproofing or on the interior, constraints being condensation possibility & space for interior and drainage & long-term structural integrity for exterior approach.