Michelle K linnane
Gold Member
Hi Guys
I had a lot of action about my post of reducing heating costs by wood stove another thing I am going to do is insultate my cement block crawl space in the spring or this summer. Crawl space is 4 blocks high. The house it self is
r22 on floors, r21 on walls and R44 in ceiling. If I remember house 30 feet wide and 50 feet long.
I have a modular that sits on a cement slab slap, with concrete blocks around as a foundation. Nothing in crawl space, house has been here 6 years. In past years I have placed round bales against foundation(from 95% wind side) and had it make a difference with making house warmer. Also this year we have a lot of cold and no snow to bank the house. Wind can not get in a quick and steal heat. There are 4 windows to vent the crawl space that I can open from the outside as I wish. I am sure there are drafts between block and house as house does not sit on the block.
My choices for insultation (already elminated fiber glass)
I have 2 different thoughts about insulation
Blue or pink board (cheapest more then likely)
Getting blue board and trying to do at least an r15 in the back of the house and the rest maybe an R7. Will not seal as well as blown in and I am sure I can get used blue board which would be cheaper. But not as tight as blown in.
Expanded Polystyrene Foam
R value of 3.6 to 4.0 per inch of thickness
Extruded Polystyrene Foam
R value of 4.5 to 5.0 per inch of thickness.
Spray foam insulation Closed Cell (seems like this is what people used for foundations).
would seal an air leaks getting in now and I assume mice leave this
stuff alone unless it is in their way? One inch is I think R7 so 2 inches
on the back wall would give me what I need.
I talked to someone recently and they said for open cell plan on a $1 a sq foot? Does this sound reasonable. We finally had some snow and I took the tractor and loader and dumped some of snow banks on the back of the house to seal an drafts between round bales and stop wind from hitting the house. Wind can be bad here sometimes.
As always would love to hear different thoughts on the subject.
I had a lot of action about my post of reducing heating costs by wood stove another thing I am going to do is insultate my cement block crawl space in the spring or this summer. Crawl space is 4 blocks high. The house it self is
r22 on floors, r21 on walls and R44 in ceiling. If I remember house 30 feet wide and 50 feet long.
I have a modular that sits on a cement slab slap, with concrete blocks around as a foundation. Nothing in crawl space, house has been here 6 years. In past years I have placed round bales against foundation(from 95% wind side) and had it make a difference with making house warmer. Also this year we have a lot of cold and no snow to bank the house. Wind can not get in a quick and steal heat. There are 4 windows to vent the crawl space that I can open from the outside as I wish. I am sure there are drafts between block and house as house does not sit on the block.
My choices for insultation (already elminated fiber glass)
I have 2 different thoughts about insulation
Blue or pink board (cheapest more then likely)
Getting blue board and trying to do at least an r15 in the back of the house and the rest maybe an R7. Will not seal as well as blown in and I am sure I can get used blue board which would be cheaper. But not as tight as blown in.
Expanded Polystyrene Foam
R value of 3.6 to 4.0 per inch of thickness
Extruded Polystyrene Foam
R value of 4.5 to 5.0 per inch of thickness.
Spray foam insulation Closed Cell (seems like this is what people used for foundations).
would seal an air leaks getting in now and I assume mice leave this
stuff alone unless it is in their way? One inch is I think R7 so 2 inches
on the back wall would give me what I need.
I talked to someone recently and they said for open cell plan on a $1 a sq foot? Does this sound reasonable. We finally had some snow and I took the tractor and loader and dumped some of snow banks on the back of the house to seal an drafts between round bales and stop wind from hitting the house. Wind can be bad here sometimes.
As always would love to hear different thoughts on the subject.