Jack Gray Introduction Roof blisters are a common but often misunderstood issue in various roof systems, including built-up, modified bitumen, and asphalt shingle roofs. These raised pockets form due to trapped air, moisture, or volatile gases within the roofing materials. While some blisters remain stable and do not immediately compromise the integrity of the roof, others can …
Introduction The following table provides the typical expected useful service life durations for every type of primary roofing material and all roof systems you’ll be likely to run across (figuratively, don’t actually run across a roof). I have also included the typical maximum warranty lengths for each. Roof warranty terms and limitations can be tricky, …
Introduction Rooftop equipment screens are more than just an architectural afterthought – they serve essential roles in protecting and concealing rooftop mechanical systems. Exposed rooftop equipment is generally an eyesore; equipment screens can give the building a consistent, not unpleasant appearance. If you’re a building owner, architect, contractor, or facility manager, some understanding of equipment …
Introduction I was responsible for maintenance and leak response for several commercial coal tar pitch roofs in Texas that were part of my company’s roof management portfolio for many years. I was also the roof observer on several very large roof replacement projects where coal tar pitch roofs were removed and replaced. I did a …
Introduction Hypalon is a somewhat unique single-ply roofing membrane material that used to be installed on commercial low-slope roofs. “Hypalon” is a brand name used by DuPont for chlorosulfonated polyethylene (CSPE), a type of synthetic rubber; sheets of CSPE were joined together to form the finished roof membrane. CSPE roof membranes are known for their …
I participate in the Amazon affiliate program and may earn commissions from purchases made through links on this page. Introduction When you’re dealing with roofs, material weights are always a concern. Especially if a contractor is trying to get you to let him to store materials on the roof. You want to avoid overloading. I …
I participate in the Amazon affiliate program and may earn commissions from purchases made through links on this page. Introduction This Drip Edge Quantity Calculator is a tool designed to help you accurately estimate the amount of drip edge material you need for your roofing project. It takes into account roof perimeter length, the length …
What is a Roof Scupper? The International Building Code defines a roof scupper as “an opening in a wall or parapet that allows water to drain from a roof.” Roof scuppers are occasionally referred to as “roof scupper drains” or just “scupper drains,” for obvious reasons. Scuppers do drain the roof, but it is incorrect …
Best Roof Repair Tapes for Sealing Leaks on RV Roofs, Metal Roofs, and Flat Roofs on Buildings I participate in the Amazon affiliate program and may earn commissions from purchases made through links on this page. Introduction Roof repair tape, also known as roof sealant tape, is a really surprisingly good way to fix a …
Introduction Knowing material weights is extremely important when you’re planning on putting things on a roof. You have to avoid loads that exceed the design strength of the roof and the roof’s supporting structure. I thought it would be helpful to have an easy way to look up the weight of 4×4 lumber, so here …