Your walls in their present state have an r rating of about 3.
Insulation for cement walls.
2 calculate how many inches of insulation you need to achieve your.
Most homeowners require insulation with an r value between 13 and 21 in their basements where most concrete walls can be found.
I still have a few issues to clarify in my basement project which is a retrofit on a 1945 home.
Make sure your adhesive is free of solvents which can eat away at the foam insulation.
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.
Whichever kind of insulation you choose make sure the r value which is a.
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.
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.
Step by step basement insulation installation.
Basement is dry no sign of water or flaking cement on floor or walls.
Insulation is vital for concrete basement walls the basement hold the house s furnace water heaters laundry machines and essential utilities.
Seal gaps around windows and doors with spray foam insulation.
Adding 2 inch thick insofast panels will bring your walls to r 13 30 percent more than the iecc minimum.
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.
Force the cement into the sunken tie rod holes using a margin trowel.
After the cement is set apply a foam board adhesive to the rear of a polystyrene insulation panel then press the panel to the wall.
For an energy efficient option use sprayed foam insulation.
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.
Because they are naturally located below ground level basements are mostly cool and damp.
Foam board insulation is easy to install between wall studs and over existing blanket insulation.
Interior insulation refers to insulation applied to the interior side of the concrete masonry as shown in figure 1.