Some roofing materials, such as wood shingles and flat roof membranes, require periodic resealing. For flat roofs, the frequency depends on the sealant’s quality—inexpensive acrylic will need ...
EI Associates, the engineering firm working on the high school roof project, came to the board with recommendations for the roof and siding of the Wellsboro High School.
The seams between the membrane sheets are then heat-welded together to create a watertight seal. TPO roofing can be installed on flat or low-sloped roofs and is suitable for both new construction and ...