Insulating Pier And Beam Floor

The air space above the 9 1 2 inch insulation in the 12 inch joist cavity will help provide a warm floor inside the cabin.

Insulating pier and beam floor.

Adding insulation mitigates the problem but there are some considerations to keep in mind. There s also an extra bit of insulation from the air under the home saving you on energy costs. If you want to insulate a floor assembly by leaving the joist bays empty and installing rigid foam on the underside of the joists here are a few things to keep in mind. An uninsulated floor allows heat to escape making the house less energy efficient.

If you would prefer to install the insulation without the help of a professional one option would be to use foam boards. Some homeowners prefer the feel of the wood platform over a concrete floor. Cons of pier and beam foundations. It will provide additional insulating value for not too much more than what would be invested in the r30 insulation.

Homes built on pier and beam foundations can be relocated if necessary. These stiff boards are placed close together on top of the floor joists. Lots of people asking if they could use this in the walls and ceiling. Alternatively you could fill the cavity completely using r 38 faced batt insulation.

According to the 2012 irc the minimum r value for floor assemblies is r 13 in zones 1 and 2 r 19 in zones 3 and 4 r 30 in zones 5 and 6 and r 38 in zones 7 and 9.