Coating existing asphalt shingles to make them cool however is not normally recommended or approved by shingle manufacturers.
Foam roof vs insulation for cooling.
When installing attic insulation a case can be made for both radiant barrier sheathing with typical types of insulation as well as spray foam insulation.
Not long ago someone even told me that in florida roofing companies won t let their workers go up on roofs with open cell spray foam because the roofs are so spongy the guys fall right through.
A number of factors should be taken into consideration when choosing between these two especially the climate zone that you re building in.
Buy cool asphalt shingles which use specially coated granules that provide better solar reflectance.
It rots roofs people have told me.
I was reading an article by katy over at charles and hudson about the benefits of what s known as a cool roof.
New dura foam roofs include a 10 year leakproof guarantee which is extendable to 15 years upon recoat.
If you recall from our garage spray foam installation fred and i opted for a hot roof on our new in progress workshop.
Save energy on heating and cooling with dura foam s insulated cool roof systems.
How they can be made cool.
It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches.
Katy s article got me thinking about the benefits of both cool roofs and hot roofs over traditional roofs and which option is actually the better choice.
A roof warranty is only as good as the company that stands behind it.
Radiant barrier sheathing is inexpensive and reflects thermal radiation to keep attic spaces cool.
Some types of thicker foam board insulation are available but they may need to be special ordered.
Long term service and savings.