Tracer gas approach, well I am going to compare my approach to
ASTM D6245, D1356,D3249,E741
(I feel like Larry the Cable Guy)... are you accusing me of having brain damage ??
("I feel like Larry the Cable Guy")... are you accusing me of having brain damage???
Originally Posted by Carnak
no, you sound smart, you said you followed 62.2 but you have less fresh air then 62.2 assumes,so it proves that CO2 does not cause brain damage
Originally Posted by kenny mac
Last edited by Carnak; 07-14-2008 at 01:15 PM.
Just go outside and look for the missile sticking through the roof after the hurricane and you will find the source of your leak
Originally Posted by garymunson
At least you will still have a ceiling.
Your neighbour with a vented attic will lose his ceiling before the roof fails with a major storm as water will blow up into the soffit vents, saturate your insulation and bring down your ceilings. That is a fact jack and not a 'what if'
A sealed attic with about R20 sprayed on the underside of the deck, with any gable walls insulated will outperform R49.
Originally Posted by RomulanSpy
R49 is just going to filter the hot humid air as it passes through to the conditioned space below.