Replies

1. 
   Hiker | Jul 24, 2007 01:12am | #1

   Musashi,

   I do not do alot of Mod bit roofs, but the last I did we used Certainteed and they had just come out with the cool coatings.  Apparently the mineral has heat reflective qualities.  This is not just a white granule. 

   http://www.certainteed.com/CertainTeed/Pro/Contractor/Roofing/Prodindex/LowSlopeProds/RoofMem/RPGroofingmembranesplash.htm

   I think this is the product

   Bruce

1. 
   musashi | Jul 24, 2007 05:02am | #2

   Bruce:

    

   Thanks for the advice.  I assume that aluminum roof paint on top of the white coating would probably be redundant?

    

   MusashiOutside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read.
   -Groucho Marx

2. 
   ponytl | Jul 24, 2007 06:13am | #3

   stay away from the silver coatings... tests show they just don't do alot...  now bright white does a ton... but start getting away from bright white and reflective performance drops very fast...

   I assume you get snow....  which will not melt off near as fast with white...  but if it's alot of snow it has "r-value"

   p

1. 
   musashi | Jul 24, 2007 06:57am | #4

   Thanks for the input. 

   I read somewhere that the aluminum roof paint was an energy saver, so I thought I would put the question out there, and see if it is really worth the time and expense. 

   We do get snow in New York.  Usually a few inches, sometimes 6 or more.  The summer sun is really hot, however.

   Given a choice between black and white roofing material, it seems that white would probably be a better choice.

    

   Musashi

    Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read.
   -Groucho Marx

1. 
   Piffin | Jul 24, 2007 02:34pm | #5

   The AL is an energy saver in Texas when compared to a smooth surface black roof, but in NY, comparing it to a white surface, it is a waste of your money 

    

   Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!

1. 
   Hiker | Jul 24, 2007 03:05pm | #6

   Do the manufacturers permit spraying the aluminum on top of there products?

   I have only seen that stuff sprayed in old tin and metal roofs.

   Bruce

1. 
   Piffin | Jul 24, 2007 03:10pm | #7

   It depends on the product and the kind of AL coating.For instance, an EPDM is not tolerant of bituminous products.So you hjave to read the literature for the roofing product you use 

    

   Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!

2. 
   musashi | Jul 24, 2007 04:13pm | #8

   Around here, it gets brushed/rolled on top of tarpaper roofs.

   I hadn't thought to check with the manufacturer. Thanks.

    

   Musashi

    Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read.
   -Groucho Marx