Foam Roofs

A foam roof is sprayed on using a polyurethane mixture that forms a protective barrier over the existing roofing to fill in all crevices or cracks. These cool roofs are used on low sloped or flat roofs and are often an alternative to a tar and gravel roof. In addition, they can save homeowners lots on their cooling bills, improve drainage and can easily be integrated with solar panels to help the environment and the checkbook.

“SPF roofs do not convect heat and are used almost exclusively on flat surfaces. This makes them ideal to be used in conjunction with solar panels, which can greatly reduce energy bills and is a fantastic way to reduce reliance on traditional energy sources.”

Basics Of A Foam Roof

A foam roof is considered a type of cool roof, meaning the roof does not absorb heat, but instead reflects it. It is commonly referred to as SPF or spray polyurethane foam. Once the base coast of SPF is applied to the roofing surface, the material expands to create a hard surface that will not allow moisture to penetrate the coating. Next a top coat of elastomeric coating, granules or gravel coating is applied to create a UV resitant durable and walkable top layer. This closed cell system has no seams or panels that are typically to blame for leaks or water damage.


Foam Roof Cost

Low To Mid Grade: $4.00 – $7.50 psf
Entry to mid grade projects will run $400 to $750 per square installed.

Mid Grade To Premium: $7.50 – $11.00 psf
Mid grade to premium projects will run $750 to $1,100 per square installed.

Learn more on foam roof cost.

Advantages Of A Foam Roof

Strong And Lightweight
Because the material is a liquid, it is much more lightweight than other materials. This does not place any added stress to the structure that can over time be the cause of costly damage.

Great For Waterproofing
The single block of material means there are no seals where water or moisture can get trapped and damage the roof or seep through a cause leaks. The weather tight membrane adheres to the substrate and therefore creates an amazing water barrier

Very Energy Efficient
SPF has a high insulation value that does not convect heat, but rather reflects it. The result is a cool home in the summer and a warmer home in the winter. This also translates to great savings on heating cooling – some homeowners claim to save 33% on their energy bills.

Ideal For Solar Power
Because SPF roofs do not convect heat and are used almost exclusively on flat surfaces, they are ideal to be used in conjunction with solar panels. This combination can greatly reduce energy bills and is a fantastic way to reduce traditional energy sources that are nearly maxed out in many cities and communities.

Downsides

Has To Recoated Every 10 Years
Every 10 to 15 years, a SPF roof has to be recoated. If not the UV damage can fade and deteriorate the material which will then make it susceptible to water damage. Recoating is their version of roof maintenance. This has been the biggest complaint about these roofs.