Tpo Roof Condensation Problems

Apple technical specialist with professional roof consultants.

Tpo roof condensation problems.

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. Structural damage and improper installation cause a lot of the tpo problems. Cool roof temperatures may increase the possibility of condensation if warm moist air from the interior comes into contact with the assembly. Tpo roofing membranes have been noted to have an issue of accelerated weathering when subjected to high thermal or solar loading.

It is the leading cause of the deterioration of trusses. This problem has been specifically documented in the southern states that get a lot of heat and sun throughout the year. First there is little air movement within the roof system to pump moisture laden air into the roof. Although condensation in roofs may not seem like a serious problem it actually is.

Single ply membranes like tpo pvc and epdm. Half rolls are used for perimeter sheet. The biggest problem with good quality tpo that. In the case of the timber trusses and purlins they will rot and eventually lose their stability.

Genflex installation instructions are unclear about the use of perimeter sheet. This applies to both the timber and steel trusses. It is made up of a single ply synthetic membrane used to cover flat and low slope roofs. Additionally the billowing effect of a mechanically attached roof can exacerbate the potential for condensation because more air is drawn into the roof system.

While this roofing system can be walked on and it is both flexible and lightweight the membrane itself can be easily punctured. These roofs have few inter material condensation problems for two reasons. And even shingles explains dale w. Tpo membranes can be applied directly over old existing roofing material or a bare roof deck with adhesive or mechanical fasteners.

In the building industry tpo stands for thermoplastic polyolefin a synthetic rubber compound that has been extensively used for roofing since the late 1980s. Of all the tpo roofing problems there are this is the one that is probably the most problematic. In cold climates that may lead to significant amounts of condensation in and around those penetrations. Tpo is generally environmentally friendly and mold and algae resistant.

And second the roof deck and rigid insulation form a reasonable interior vapor barrier. Cool roofs can include asphalt built up membranes like fiberglass modified bitumen and torchdown.