Insulation
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Insulate Basement Walls: Continuous Layer of Interior Rigid Insulation
If you’re insulating a basement wall on the interior, one of the best approaches is to use a continuous layer of rigid foam. The illustration show the use of R-16 polyisocyanurate. In Climate Zone 3 and most of Zone 4, building codes will accept lower R-values.
Installing Dense-Pack Cellulose
With the reinserted whip pushed to the top plate, the cavity is then filled from the top down with dense-pack cellulose. As the cavity fills, the whip is backed out and withdrawn. Installed correctly, the cellulose is packed tight enough that patching the hole is unnecessary.
A Look at a Stucco Wall
Stucco is a cementitious mix applied in several layers to a wire-lath base over wood-frame construction or to a masonry surface such as brick, block, or structural tile. Like plaster, stucco is usually applied in three coats: a base coat approximately 3⁄8 in. thick, scored horizontally to help the next coat adhere; a brown coat about 3⁄8 in. thick; and a finish coat (called a dash coat by old-timers) 1⁄8 in. thick. For repair work and masonry-substrate work, two-coat stucco is common.
Insulation Makes an Impact
In the climate story, insulation is both a hero and a villain. Installed properly, insulation can dramatically reduce the need for heating and cooling, shrinking both on-site fossil-fuel use and power-plant emissions. Well-insulated homes require smaller heating and cooling equipment, making them easier to electrify. But insulation materials, particularly foam boards and spray foams manufactured with HFCs, can be major contributors to a home’s upfront carbon emissions.