INSULATING WALLS OF AN OLD FARM HOUSE
QUESTION FROM NATHAN OF OAKFIELD, WI:
I have an old farm house with masonite siding and very little insulation. I have been looking for a contractor to put a spray foam insulation in my walls. Is it possible to do this in a closed up wall?
I have been getting mixed answers. I do not have the money to add new siding at this time -- this is why we are looking. Thanks
ANSWER FROM THE INSULATION DOCTOR:
Hello Nathan, It is possible to blow foam into a closed cavity. The problem is that you have to allow for an excessive amount of expansion as it dries. For this reason, you will need a very experienced contractor.
Spray-in foam has the highest R-value obtainable, but it is also the most costly by far to have installed. I would recommend that you check into the cost of having cellulose insulation blown-in the walls. You would still be able to achieve a very high R-value at a much lower cost.
Hope this helps you out.
The Insulation Doctor