Putting Insulation In Basement Walls

I have insulated my basement so far with closed cell rgid boards 1 5.

Putting insulation in basement walls. Paul march 6 2015 at 12 41 pm. Eps is used under roofing over foundation walls and beneath siding. Basement walls were drylocked and then framed with wood studs 1 2 from wall. In fact improperly insulated basement walls are one of the biggest reasons for mold in homes.

How to use plastic as a vapor barrier in the walls. I recently framed my basement walls with 2 of eps foam fastened to the exterior wall with all seams taped and corners spray foamed. We have a room in our finished basement that we want to put rigid insulation onto to keep the cold out. Could i put 1 2 eps behind studs to seperate studs from foundation wall then put faced fiberglass insulation between studs and then 1 2 drywall.

When insulating concrete basement walls a good idea because concrete basement walls are often cold use rigid foam board insulation if the insulation will come into direct contact with the. We d like to put the rigid insulation up but do the framing wallboard in the warmer weather. I left a 1 gap between the foam and framing and when i insulated the walls with r12 batt insulation i noticed moisture forming behind the insualtion where the insulation was contacting the foam. The problem is the room is only 5 wide so we don t have room to build the frame for the wall board installation.

Avoid expanded foam insulation the type that has little white beads pressed together when insulating basement walls because it isn t as durable and has a lower r value. I cannot get 2 eps behind studs since ceiling is finished with dry wall in place. In a perfect world you would be able to unscrew invisible bolts remove drywall panels install insulation and reinstall the panels our less than perfect world of permanently attached wallboard means time consuming hacking away of gypsum individually removing drywall screws or nails installing r 13 or greater fiberglass roll insulation and re installing the drywall. If you don t do this correctly you ll be exposing your family to dangerous mold exposure.

Basement insulation is far more complicated than insulating regular wood framed walls. Basement insulation walls. Water vapor in the warmer air of your home begins to condense on the colder surface of the glass of water. Now do i do the floors next with the same r igid boards plywood on top then my studded walls filled with pink insulation or do i put my studded walls after my rigid foam on the walls and then the floors with rigid foam.

Extruded polystyrene foam can be yellow pink or blue depending on the manufacturer for insulating basement walls. It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation. Think of a glass of ice water.