Author Topic: Floor insulation  (Read 2103 times)

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  • Guest
Floor insulation
« on: July 05, 2007, 05:35:11 PM »
Hi all,
First post here. I will soon take delivery of a prefab "cabin" that is 12 x 24 in size. It is really a bare bones building that I will finish to some degree for use a s a hunting cabin here in upstate NY. Insulating the walls and roof are not a problem. I will do this with fiberglass insulation between the studs/joists. My problem is with the floor. This type of building is built on pressure treated skids. I will have no room to get underneath. The building will sit on a level gravel pad that has been set for it. Does anybody have any suggestions to insulate the floor from the top (inside the cabin)?
Heat will come by way of a wood stove. I don't know how much heat loss will occur through the floor. It may be more of cold creating an uncomfortable surface to walk on.
Any ideas would be appreciated.


  • Guest
Re: Floor insulation
« Reply #1 on: July 05, 2007, 07:45:21 PM »
How about putting something like 2" foamboard with floor sheathing over it or even build another floor with insulation over the original floor.

You could also jack it up on piers - might even prolong the life of the cabin.

...and welcome to the forum.
« Last Edit: July 05, 2007, 07:45:50 PM by glenn-k »


  • Guest
Re: Floor insulation
« Reply #2 on: July 06, 2007, 05:55:56 AM »
The floor insulation is one of the reason's we discarded the idea of using a building like that for starting out. Addinf on top of the floor like Glenn suggested works but I saw door threshold problems. With an outside pening door it could work for something like a hunting/fishing base. Jacking it up and insulating undeneath would be good too.

Any chance of working with the builder and having them modify their work to include a fibreglass insulated floor?


  • Guest
Re: Floor insulation
« Reply #3 on: July 06, 2007, 06:23:30 AM »
Thanks for the replies!
I thought of asking the guy I'm buying it from about insulating the floor, but it winds up that he is not the builder. He gets them from Pennsylvania (I'm guessing Amish built).
I suppose I could set it on blocks or something. I can't pour any kind of base for it. It then becomes a permanent structure and gives me a new set of headaches as far as permits, etc.
I followed a link from the forum to a place called lumber liquidators. They carry a product called "insulayment". It is about  1/4" thick. Maybe I can put that down with a rustic ash/oak plank floor (also sold by lumber liquidators) on top. I don't know what kind of "R value" the insulayment has, but coupled with the planking on top of it, it may do the job.

Offline John Raabe

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Re: Floor insulation
« Reply #4 on: July 06, 2007, 08:51:48 AM »
You might consider the Little House plans as they have been designed for an insulated floor on a post and pier foundation. You most likely already have the beam with the skid.
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