Tpo Roof Condensation Problems
And second the roof deck and rigid insulation form a reasonable interior vapor barrier.
Tpo roof condensation problems. And even shingles explains dale w. A professional roofing contractor or roofing consultant should review your roof system on a regular basis. Apple technical specialist with professional roof consultants. Tpo roofing membranes have been noted to have an issue of accelerated weathering when subjected to high thermal or solar loading.
The biggest problem with good quality tpo that. Experienced professionals can check areas that are locations of common weaknesses in the roof assembly and identify problems early on before they cause damage to your roof and the structure of the building. Since the roof in question is 1575 s f. It is made up of a single ply synthetic membrane used to cover flat and low slope roofs.
First there is little air movement within the roof system to pump moisture laden air into the roof. Cool roof temperatures may increase the possibility of condensation if warm moist air from the interior comes into contact with the assembly. These roofs have few inter material condensation problems for two reasons. This problem has been specifically documented in the southern states that get a lot of heat and sun throughout the year.
Although condensation in roofs may not seem like a serious problem it actually is. While this roofing system can be walked on and it is both flexible and lightweight the membrane itself can be easily punctured. It is the leading cause of the deterioration of trusses. We will need 2 rolls of 10 100 of tpo and 3 full rolls of ib 6 90 and 2 half rolls of ib 3 90.
Genflex installation instructions are unclear about the use of perimeter sheet. Tpo membranes can be applied directly over old existing roofing material or a bare roof deck with adhesive or mechanical fasteners. In the case of the timber trusses and purlins they will rot and eventually lose their stability. This applies to both the timber and steel trusses.
Cool roofs can include asphalt built up membranes like fiberglass modified bitumen and torchdown. Tpo is generally environmentally friendly and mold and algae resistant. Half rolls are used for perimeter sheet. In the building industry tpo stands for thermoplastic polyolefin a synthetic rubber compound that has been extensively used for roofing since the late 1980s.
In cold climates that may lead to significant amounts of condensation in and around those penetrations. Of all the tpo roofing problems there are this is the one that is probably the most problematic.