Tpo Roof Interior Condensation Problems

Although condensation in roofs may not seem like a serious problem it actually is.

Tpo roof interior condensation problems.

Single ply membranes like tpo pvc and epdm. In general hot air welded seams continue to perform well at all four of the sites. And second the roof deck and rigid insulation form a reasonable interior vapor barrier. In the example shown above this would happen at 45 f and just inside the insulation layer.

It is the leading cause of the deterioration of trusses. Moisture may also enter the roofing system via leakage through cuts punctures loose seams and many other discontinuities in the exterior waterproofing layer of the roof. Obvious or unforeseen roof problems are always a pain and undoubtedly a significant expense. Typical additives include some form of rubber to make it flexible and.

Buildings magazine examined which problems are most common and the conditions that can either cause or be the result of premature failure and reduced service life of low slope roof systems. 12 comments on problems with tpo roofing just the facts eric says. Cool roof temperatures may increase the possibility of condensation if warm moist air from the interior comes into contact with the assembly. Cool roofs can include asphalt built up membranes like fiberglass modified bitumen and torchdown.

In the case of the timber trusses and purlins they will rot and eventually lose their stability. To recap the interior air has 40 of the total water vapor that it can support. You obviously should you the most insulated exhaust pipe that you can find. The observation of liquid water within a roofing system does not necessarily indicate that vapor condensation has occurred.

First there is little air movement within the roof system to pump moisture laden air into the roof. This applies to both the timber and steel trusses. So maybe pvc is better for you. These roofs have few inter material condensation problems for two reasons.

But as the air migrates up through the roof system it gets cooler until the point where it can no longer hold on to the water vapor and condensation occurs. And even shingles explains dale w. Roof condensation and roof leakage look the same. As far as pellet stove.

However tpo roofing is combustable it will burn by itself whereas pvc roof will not burn if you remove the source of fire. Triple wall should have no problem with tpo. Compositional problems tpo is mostly polypropylene and polyethylene but each manufacturer puts in different additives. This is not a self diagnostic guide but rather an informative list of some of the problems most often battled.

I was going to do a tpo or pvc on an apt building but my roofer says he highly recommends this 100 silicone product over tpo or pvc.