Insulating Block Walls

The option for insulating concrete block walls includes spray foam insulation injection foam insulation polystyrene beads foam boards and loose fill masonry insulation.
Insulating block walls. That is a good thing but installing it demands. Before insulating coat the exterior of the walls with fluid applied water control and air control layers. Now as you glue the panels to the exposed concrete blocks leave a inch gap at the floor and ceiling and cut holes in the panels to fit around outlets and wall switches.
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. Assuming that you are not going to tear down the walls and start from scratch there are two methods of adding insulation to the garage wall either to the inside or the outside of the wall and we will look at each of these in turn. Garages are usually built with a brick or block single skin solid wall without any sort of insulation.
External wall insulation ewi on a garage conversion. Installing cavity wall insulation can reduce u values in walls previously without insulation from 1 5 down to 0 5 and below. Install the drywall over the panels finish it then replace the trim.
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. 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. After the adhesive cures add extension boxes to the outlets and switches and spray foam into every gap top bottom and around each box.
Adding 50mm of rigid insulation will reduce the u value to around 0 4 while 50mm of mineral wool or natural insulation will reduce it to 0 5. Then attach 2x4s on the flat directly to the masonry insulate between and on top of them staggering the joints in the. This can be used with radiators in loft spaces on timber floors and wall lining.
Marmox thermoblock is a block of load bearing insulation material designed to be placed at the base of a masonry or timber frame wall to address the thermal bridge. 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. It s also an ideal insulation solution for sheds and greenhouses to protect against frost damage.