Spray foam roofing refers to a special kind of material that is sprayed on the base structure of a roof under the form of liquid, and which further spreads like a foam, thus creating a strong layer over a pre-existent roof.

The main reason why this material is used is to refresh and sometimes fix an already existing roof. This is done by removing the saturated areas and putting new ones in their place. SPF is not the most known type of roofing material, but certainly has been around for a long time, ever since the early ‘60s. Spray foam is used for commercial, residential and industrial buildings.

SPF works well in mostly any climate, and, if properly installed and maintained in a good state, can last for more than 50 years.

This material is produced by mixing two very reactive chemical substances, namely polyol/resin and isocyanate. These two are pumped from different reservoirs to an inner mixing spray gun.

SPF has a high R-value, which means it is highly resistant to heat. This means it can help you save money on energy bills.

Some great news about SPF roofs is that they are renewable. Moreover, many manufacturers extend warranties with every re-coating. Check with your local commercial roofing company at Http://www.nemasonry.com/new-england-roofing for commercial roofing products and services.