Insulation For Cement Walls

As with attics or anywhere else in your home adding more layers of insulation to your exterior walls is key to having a higher r value and better thermal performance.

Insulation for cement walls.

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. According to the international energy conservation code iecc for your area mass walls ones made of thick block brick stone or adobe should be at least r 10. Make sure your adhesive is free of solvents which can eat away at the foam insulation. Force the cement into the sunken tie rod holes using a margin trowel.

To insulate basement walls you can use blanket insulation which you just nail or staple into the wood frame in your basement. Most homeowners require insulation with an r value between 13 and 21 in their basements where most concrete walls can be found. Seal gaps around windows and doors with spray foam insulation. Whichever kind of insulation you choose make sure the r value which is a.

For reference my basement is currently finished with concrete exterior walls then charcoal colored wrap material there seems to be an inch or two between this wrap and the exterior walls then stud framing with r12 batt insulation between the studs then a vapor barrier and finally drywall on top of the vapor barrier. Because they are naturally located below ground level basements are mostly cool and damp. Adding 2 inch thick insofast panels will bring your walls to r 13 30 percent more than the iecc minimum. For an energy efficient option use sprayed foam insulation.

Basement is dry no sign of water or flaking cement on floor or walls. Step by step basement insulation installation. I still have a few issues to clarify in my basement project which is a retrofit on a 1945 home. Your walls in their present state have an r rating of about 3.

The insulation may be rigid board extruded or expanded polystyrene or polyisocyanurate closed cell spray polyurethane foam cellular glass fibrous batt or fibrous blown in insulation note however that fibrous insulation is susceptible to moisture. Insulation is vital for concrete basement walls the basement hold the house s furnace water heaters laundry machines and essential utilities. 2 calculate how many inches of insulation you need to achieve your. I will use the 1 xps installing as detailed frame with 2 4 then use 3 5in glass batts finishing with gypsum.

Or you can install drywall over the studs and then add loose fill insulation.