Whole home insulation ideas
In addition to my other post I would like to know about the best approach for certain areas of the house here are my concerns
ATTIC: 2" of open cell foam along bottom cord of trusses to seal drywall, also spray foam where top plate and drywall come together, also where insulation baffle meets top plate. 12 inches of blown cellulose on top of the foam
QUESTION: Is this a good plan to seperate the attic from the conditioned part of the house?
BONUS ROOM OVER GARAGE: 3" od open cell in ceiling of garage to keep floor warm
QUESTION: Floor area of bonus room is a concern. I have radiant floor heat in the garage floor concrete below and would like to allow that radiant heat to assist with keeping the above garage room warm. would 3" open cell in the ceiling of the garage under that floor be to much for thew radiant heat to work through? Is there a better idea?
BONUS ROOM KNEE WALLS AND ATTIC: Sealing off exterior end of the attic where it meets the soffit to create a thermal barrier, then 3" of open cell in the back of the knee walls against the drywall. 12" of blown cellulose on top of drywall
QUESTION: Where is the best place to create the thermal barrier. Part of the bonus room attic is above a porch and joins the main part of the house. My idea is to keep the thermal barrier as far away from the bonus room knee wall as possible to help with the conditioned space. Is open cell a good choice in this area?
BONUS ROOM CEILING: Open cell against ythe roof deck from the soffit to the ridge vent
QUESTION: Is open cell ok against the roof deck and how much air venting should I allow below that spray foam....every other rafter or every third rafter?
Posted Aug 8, 2014 12:05 PM ET
Edited Aug 8, 2014 1:24 PM ET
Other Questions in Energy efficiency and durability
Has anyone heard or experienced any down side to using pumice as a building material for the floor or walls?