Comments on: The Effect of Radiant Barriers on Shingle Temperatures. Am I going to BAKE my shingles? http://www.radiantbarrierguru.com/the-effect-of-radiant-barriers-on-shingle-temperatures-am-i-going-to-bake-my-shingles/ Saving You Money on Your Energy Bills Thu, 29 Jul 2010 20:31:22 -0700 http://wordpress.org/?v=2.8.4 hourly 1 By: Ed Fritz http://www.radiantbarrierguru.com/the-effect-of-radiant-barriers-on-shingle-temperatures-am-i-going-to-bake-my-shingles/#comment-440 Ed Fritz Wed, 28 Apr 2010 15:45:10 +0000 http://www.radiantbarrierguru.com/?p=155#comment-440 Klaus, It's tough to say exactly. Heat that would be absorbed by the insulation is being reflected back towards the roof. However, very little radiant heat is absorbed by air. Radiant heat goes right through transparent objects like glass, air etc. So, from testing different roofs over a radiant barrier they tend to increase only a few degrees in temperature. In theory, this COULD cause the actual air inside the attic to go up a few degrees depending on the ventilation. I'm always in favor of good ventilation ESPECIALLY if there is ductwork in the attic. Here is an article on <a href="http://www.radiantbarrierguru.com/attic-ventilation-basic-tips/" rel="nofollow">proper attic ventilation:</a> Klaus,

It’s tough to say exactly. Heat that would be absorbed by the insulation is being reflected back towards the roof. However, very little radiant heat is absorbed by air. Radiant heat goes right through transparent objects like glass, air etc. So, from testing different roofs over a radiant barrier they tend to increase only a few degrees in temperature.

In theory, this COULD cause the actual air inside the attic to go up a few degrees depending on the ventilation.

I’m always in favor of good ventilation ESPECIALLY if there is ductwork in the attic. Here is an article on proper attic ventilation:

]]> By: Klaus Beyer http://www.radiantbarrierguru.com/the-effect-of-radiant-barriers-on-shingle-temperatures-am-i-going-to-bake-my-shingles/#comment-437 Klaus Beyer Tue, 27 Apr 2010 23:24:57 +0000 http://www.radiantbarrierguru.com/?p=155#comment-437 If the attic foil is installed on top of the attic insulation, is the space between the attic foil and the roof hotter because of the reflected heat in comparison to the same space without the presence of an attic foil layer. Our current house has the standard ridge venting . Would the implementation of attic foil necessitate additional venting ? If the attic foil is installed on top of the attic insulation,
is the space between the attic foil and the roof hotter because
of the reflected heat in comparison to the same space without
the presence of an attic foil layer.
Our current house has the standard ridge venting .
Would the implementation of attic foil necessitate additional
venting ?

]]> By: Don Leiter http://www.radiantbarrierguru.com/the-effect-of-radiant-barriers-on-shingle-temperatures-am-i-going-to-bake-my-shingles/#comment-307 Don Leiter Mon, 15 Feb 2010 18:18:36 +0000 http://www.radiantbarrierguru.com/?p=155#comment-307 Thanks for reference to your article. Very helpful! Don Thanks for reference to your article. Very helpful! Don

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