Flat Roofing Questions: 

Small roofs may not require much material but they do require extra time.  On a larger project there is a lot more field work, or open space, that can be installed quickly and efficiently. Smaller roofs have less field work to speed up the project, but will likely have similar amount of tedious detail work.  

The lifespan of your flat roof is dependent on multiple variables such as what type of roof system you have, quality of install, what climate you are in, and more. Typically we see flat roofs lasting approximately 20 years when properly installed. On occasion we find roofs last as long as 30 years with proper care.

Rock is typically found on two types of roof systems. River rock (approximately 2” diameter) over a membrane is on there to weigh down the membrane so it stays in place. 

Gravel on a built up roof system (BUR) is in place to help protect the roof from the elements such as UV rays and hail.

Heat cable is a great way to keep your roof drains clear and it can be found at most home improvement stores. 

Flat roofs have many advantages such as serving as additional space for HVAC units which allows space inside to be used more efficiently. Flat roofs are safer and more cost effective to install on commercial applications than a pitched roof.

When it comes to replacing your flat roof the amount of options can be overwhelming and they are not all created equal. Common flat roof systems include: PVC, TPO, EPDM (rubber), tar and gravel (built up roofing), modified bitumen, coatings, and metal. 

Although vinyl and TPO look similar their chemical composition is completely different giving them each different physical characteristics, and different life spans. 

Many different roofing materials are made in white to take advantage of the reflective properties, but the systems are very different.