View Single Post
Old 11-23-2009, 01:24 AM   #10 (permalink)
bgd73
Banned
 
Join Date: Feb 2008
Location: maine
Posts: 758

oldscoob - '87 subaru wagon gl/dr
90 day: 47.06 mpg (US)
Thanks: 21
Thanked 18 Times in 14 Posts
Quote:
Originally Posted by Ryland View Post
That is pretty far from true, light colors reflect alot more heat then dark colors, in the summer this keeps the roof and the attic cool, allowing the insulation to stay cooler, in the winter dark colors let the snow melt sooner, snow acts as extra insulation, yes, snow can be insulation as it's better to have your attic just below freezing then it is to have it -20F.
not necessarily. there is enamels/urethanes that keep dark colors cool, just by a high uv rating...it needs to accept uv to accept heat, and then be able to give it away again.

a roof should get hot, there is organic and gases in the house that need out, and other physics that just needs up, unless you have a common sensed air circulation?

making a dirty old barn out of the house ...ewww.
  Reply With Quote