My house built in 1994 was R2000 spec'd. Even in dead winter I have to
bring in outside fresh air. First thing to do is take a IR
picture of the house to id. where the most heat loss is. Our local U.
is working on a project using Google earth to analyze heat loss of the
house with satellite thermal imaging. SW quadrant of city is covered
with the program, when it is completed it will cover whole city. I am
in SE quadrant and waiting to try the program myself. You just give
address and Google earth focuses down on the house, takes image. Pretty
On Saturday, December 20, 2014 8:35:38 PM UTC-5, firstname.lastname@example.org wrote:
As I previosly pointed out, you don't have to replace them, you can just
sister them, ie add on to them. If it's just a space issue, not a load
issue, then he could just screw additional wood onto the rafter faces.
Replacing them without doing a new roof at the same time, would be nearly
On Sun, 21 Dec 2014 05:13:24 -0800 (PST), trader_4
Thank too all, for the valuable advice.
I had not considered spay foam/ insulation - certtainly a viable
option. Putting a wood strip. upoon each rafter, thereby providing
increased depth is an easy, cheap option. As noted, that will allow
for significantly more insulation..
If I use the spray foam, will there still be a need to have the noted
Thanks a lot, to the many responders -
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