Wacobipe;1107 wrote: In reading a thread on another forum, I found a reference to a product claimed to be excellent for a roof coating and insulation. That product was FGI-4440, a commercial product.
I called the company and spoke to the owner (?), Glenn Davis. He was awesome...the product comes in 25 gallon quantities, and they will break that down into 1 and 5 gallon quantities (be warned it isn't cheap...$125 per gallon plus shipping). I am mostly interested in the insulation value (R30) but the sealant characteristics are also desirable since I have a seemed galvalume roof.
It is very easy to work with ( I used a brush and roller but it would be awesome to spray if you have the equipment). I applied one layer, waited awhile for that to start to set up, then I just dumped the rest of the gallon on the roof and spread it evenly with the roller to finish the job...It is thin enough to spread easily but thick enough not to run or move on it's own (self-levels fairly well). I estimate I have a layer that is approximately 2X as thick as the 10mil thickness recommended (I have less than 60 sq. Ft. of roof, and it is supposed to cover 120 sq. ft per gallon).
The insulation results are stunning. After applying it during a trip to the field where the trailer sits in the sun all day you can't leave your hand on the interior bare aluminum walls as they are too hot...but the roof,with FGI-4440 on the exterior is only slightly warm!
I am very pleased with the results!
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