Insulation Around Brick Chimney In Attic

The b vent system requires air space clearance as well as clearance from combustibles.

Insulation around brick chimney in attic.

Spun fiberglass insulation is like a sponge as far as its ability to collect and hold significant volume of water. You might want to consider a wireless thermostat. If there is a straight open space accessible from above you might consider polyisocyanurate foam insulation. Once you ve decided which type is best for you examine the material options and prices to home in on the right product.

Seal between the chimney and the framing with fireblock foam or caulk to prevent exterior air from coming in and then put 3 of roxul directly against the chimney brick. In either cse it fills the required open air space around the b vent in the un conditioned attic space. If the chimney is an older brick one it may be possible to insulate it along the warm side at the same time as the walls of the knee wall spaces. Fiberglass insulation is commonly used in attics around the chimney stack.

Fiberglass is one of the most commonly used materials for insulating the home. I think i ll either. Both can be added to uninsulated attics or layered over existing material. They make 4 wide blanket sized insulation for this.

For diy attic insulation you ve got two choices. Loose fill or batt the common term for blanket insulation. The opening around a furnace or water heater lue or chimney can be a major source of warm air moving in the attic. Because the pipe gets hot building codes usually require 1 inch of clearance from metal lues 2 inches from masonry chimneys to any combustible material including insulation.

It is an effective barrier to the passage of heat. In hot climates it prevents heat from outside the house entering reducing the need to use air conditioners. It may be easier to use rigid foam insulation than. You will probably have to look somewhere besides the big box stores for this.