How To Insulate Cement Block Walls

Without insulation cinder block walls allow unwanted cold air from the outside to enter your home particularly.

How to insulate cement block walls.

In your climate zone zone 5 code requires you to insulate concrete block and other mass walls to at least r 13 if all of the insulation is on the exterior. The variety of concrete masonry wall constructions provides for a number of insulating strategies including. Interior insulation insulated cavities insulation inserts foamed in place insulation granular fills in block core spaces and exterior insulation systems. This can be done with pretty much any rigid insulation.

While these are the options again the material available to use depends on whether the walls will be covered or the open top is exposed like in a remodel or new build. Before insulating coat the exterior of the walls with fluid applied water control and air control layers. Available in large three by five or four by eight sizes the panels. Today there is no need to lose out on valuable interior space as you can use external wall insulation to insulate your concrete block house.

I have a 1950s brick colonial with uninsulated concrete block walls. And there is no effective way to fill the voids in an existing concrete block wall. Inside the drywall is nailed to studs fastened flat against the block. The option for insulating concrete block walls includes spray foam insulation injection foam insulation polystyrene beads foam boards and loose fill masonry insulation.

That s because in the past insulating concrete block homes meant adding interior wall insulation by building another wall against the concrete and insulating between the studs. Unfortunately concrete blocks also provide very little natural thermal resistance.