Commercial roofing projects often require lifting heavy materials and equipment onto rooftops. Cranes, hoists, forklifts, and other lifting equipment are commonly used to move items such as roofing membranes, insulation,…
On a commercial roof, insulation does more than improve energy efficiency. It also helps support the roofing membrane and withstand the physical demands placed on the roof. One important property…
Yes, a roof can be mechanically attached to a lightweight insulating concrete (LWIC) deck, but the attachment method must be carefully designed for the specific deck composition, fastener type, wind-uplift…
Hot asphalt kettles are commonly used in built-up roofing (BUR) and some modified bitumen roofing applications. Because these kettles heat asphalt to extremely high temperatures, improper operation or placement can…
- August 14, 2026
What are pre-drilling requirements for concrete deck fasteners?
Pre-drilling is an important step when installing roofing fasteners into a concrete roof deck. Properly drilled holes allow concrete deck fasteners to achieve the required embedment and holding power without…
Compressive strength is an important consideration when selecting insulation for a commercial roofing system. It determines how well rigid insulation can resist deformation when subjected to foot traffic, rooftop equipment,…
- August 14, 2026
What fire watch is required after torching operations end?
Torch-applied roofing is a common installation method for modified bitumen roofing systems, but the use of open flames creates a serious fire risk. Even after the torch is turned off,…
Verifying that commercial roof insulation was installed at the specified thickness is an important part of quality control during a roofing project. The correct insulation thickness affects the roof’s thermal…
- August 14, 2026
How is insulation attached to a structural concrete deck?
Insulation is an important part of a commercial roofing system because it helps control heat transfer, improve energy efficiency, reduce heating and cooling costs, and support the long-term performance of…
- August 14, 2026
What is an FM 1-90 or 1-180 wind rating?
When evaluating a commercial roofing system, building owners and facility managers may encounter specifications such as FM 1-90, FM 1-120, or FM 1-180. These are Factory Mutual (FM) wind-uplift ratings…