How To Insulate Exterior Concrete Walls

Concrete walls can be insulated on the interior or exterior face or by embedding the material within the wall.

How to insulate exterior concrete walls.

Before you can install these panels you ll have to do some demolition. Remove all the trim from the exterior walls window and door casings baseboards crown molding you name it and rip the drywall and studs off the block walls. For the sections of the house designed for fiber cement lap siding kb home secured a housewrap to the exterior face of the cmu walls with an industrial spray adhesive then bridged all joints with a compatible flashing tape to create an effective air moisture barrier behind the siding. Interior installation using the rigid board batt or spray on methods is the least expensive method.

Basement walls made out of concrete stone concrete bloc and other masonry foundation materials have very minimal insulating properties and cause approximately 20 of heat loss in a home. 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. That is why insulating your basements walls is necessary especially when you live in areas that have very cold climate. Three basic types of thermal insulation are available rigid board batt or blanket and spray on.

Tight joints between the insulation boards maximize the thermal performance and reduce air leakage. The board insulation may be attached with an adhesive or mechanical fasteners. 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. Adding 2 inch thick insofast panels will bring your walls to r 13 30 percent more than the iecc minimum.

How to insulate an exterior face of a concrete block wall preparation. The contractor applies a layer of adhesive over the surface of the concrete blocks and then installs a. Thermalwall ph rigid eps insulation board for insulating the exterior walls of homes. The advantages are plenty here panels are between 4 5 inches and 8 inches thick the exterior insulation is continuous and they can be attached with 6 inch 10 screws from 4 to 6 inches long.