Need Advice on Flat Roof Deck Waterproofing
#1
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Need Advice on Flat Roof Deck Waterproofing
We have a roof/deck that has a slight slope for water runoff. It is about 2 years old.
The construction of it:
First Layer: Plywood, Second Layer: Tar paper, Third Layer: Plywood.
The seams and plywood then was given 2 coats of White sealer and then painted grey.
We are have a few leaks with some of the seams. Any advice on a good waterproofer? Roof coating? We are looking for something we ourselves can apply to the roof.
Thanks for any advice.
The construction of it:
First Layer: Plywood, Second Layer: Tar paper, Third Layer: Plywood.
The seams and plywood then was given 2 coats of White sealer and then painted grey.
We are have a few leaks with some of the seams. Any advice on a good waterproofer? Roof coating? We are looking for something we ourselves can apply to the roof.
Thanks for any advice.
#2
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The seams, maybe the whole roof needs some type of membrane over it. 25+ yrs ago I worked for a painting outfit that also had a waterproofing division. I only worked in that dept a few times but when we added on a warehouse with an almost flat plywood roof we applied an elastomeric coating and then rolled out a membrane and applied another coat of the elastomeric. I was skeptical but I worked there another 5 yrs and that roof never leaked.
You should be able to look in the yellow pages and find a roofing supply house. They should be able to tell you what materials will work best for your roof.
The seams, maybe the whole roof needs some type of membrane over it. 25+ yrs ago I worked for a painting outfit that also had a waterproofing division. I only worked in that dept a few times but when we added on a warehouse with an almost flat plywood roof we applied an elastomeric coating and then rolled out a membrane and applied another coat of the elastomeric. I was skeptical but I worked there another 5 yrs and that roof never leaked.
You should be able to look in the yellow pages and find a roofing supply house. They should be able to tell you what materials will work best for your roof.
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I live in an area where most roofs are flat and standard practice here is roll roofing, usually rubber glued or torched down. A flat roof is much more susceptible to leaks than a peaked roof. I have never heard of a painted plywood roof and would expect it will deteriorate rather quickly after a few summers of sun and rain.