How To Cool Coat A Roof
One is to replace the surface layer with white gravel or reflective marble chips to increase its solar reflectance.
How to cool coat a roof. If you want to convert an existing roof into a cool roof you have three basic options. Thoroughly clean the roof surface. Including cleaner activator application rinsing and 2 coats of coolcoat each dry to the touch. I e 8 x 30 roof takes 4 gallons.
This video demonstrates how to coat a roof properly using elastomeric roof coating. It can usually be applied the same ways with rollers brushes or a spray rig depending on product type it comes in liquid form in a container similar to what is used to purchase paint once applied they look more or less the same. Unless the manufacturer s instructions state otherwise mix to cup of tsp into 2 gallons of hot water. Traditionally the asphalt and surface gravel in a built up roof have been black or dark gray trapping much more light and heat than they release but there are several ways to make a built up roof cool.
Repair and seal roof penetrations tears open seams etc. If there is mildew on the roof modify your tsp solution to 1 cup of tsp 1 quart of. Retrofit the roof with specialized heat reflective material re cover the roof with a new waterproofing surface such as tile coating replace the roof with a cool one. Using elastek 103 crack joint sealant and reinforce with.
Cool roofing can lower a roof s surface temperature by 50 to 60 degrees according to the epa which can save you a boatload on cooling costs. Working in 6 to 8 foot areas spread the liquid in a moderately thick even coat across the whole roof. A cool roof coating has several similarities to paint. When done properly with the right materials this process can repair or pr.
There are products on the market designed for asphalt shingles that you simply spray or brush on to convert your traditional shingle roof into a cool roof but these products may not be all they re cracked up to be. Entire 2 part project must be completed in one day. Surfaces shall be completely dry and frost free before coating coolcoat shall be applied in a minimum of 2 coats at a rate of 1 gallon per 125 sq.