Can I Use Cement Board As A Heat Shield?

Is cement board a good heat shield?

Safe wood stove installations require a heat shield that will prevent heat from the wood stove from creating a fire hazard in the building materials that form the exterior wall.

Hardi cement board is an inexpensive solution that will form the foundation of an effective heat shield for any application..

What can be used as a heat shield?

A brick, stone or tile heat shield is equally effective but in a different way. These dense materials absorb lots of heat and gradually release it as air circulates around them. The simplest masonry heat shield is a cement board that is separated from the wall by one-inch ceramic spacers.

What do you cut cement board with?

The simplest way to cut cement backer board is to score the surface and snap the sheet along the scored line, similar to the way you’d cut drywall. In fact, you can use a drywall utility knife to score backer board, but a better option is a carbide-tipped scoring tool.

Is cement fire resistant?

The components of concrete – cement (limestone, clay and gypsum) and aggregate materials – are chemically inert and therefore virtually non-combustible. … Fire resistance refers to a material’s ability to stand firm in a fire while everything around it burns.

Can you use aluminum foil as a heat shield?

In summary, because of metal’s unique properties, it can be an excellent heat shield (such as when aluminum foil is wrapped around warm food) or an excellent heat sink (such as when metals fins are attached to computer chips).

Can I drive without the heat shield?

Heat shields are important. Although you can technically still drive your car or truck without a heat shield, it’s a needed safety feature that was put on your car for a reason.

Is cement board considered non combustible?

Yes, HardieBacker® 1/4″ Cement Board is deemed noncombustible when tested to ASTM E 136 and can be used in conjunction with other noncombustible materials around a fireplace. This does not mean that clearances to combustible building materials can be reduced by using HardieBacker 1/4″.

What material do you put behind a wood burning stove?

Type X drywall is a common material used for wood stove installations. Type X is a gypsum-based drywall that is 5/8 inch thick and is installed on each side of a 2-inch by 4-inch wood stud, spaced 16 inches on center or spaced 24 inches on center. between studs.

How do you protect a wall behind a wood stove?

If you want to keep the stove closer than the specified distance, you can put a ‘radiation shield’ between the stove and the wall, which will usually reduce the clearances by half. A radiation shield is any non-combustible material with an air space between it and the wall.

Does concrete board burn?

The backer board will burn out eventually. You also need to build an insulated heat riser for best performance. … You want to use brick or other heat resistant thick masonry for the bells. A bell around/over the heat riser cannot be cement board as the heat in parts of that will be much too intense.

Is Durock cement board fire rated?

A Durock panel with a thickness of 1/2 or 5/8 inch can provide two hours of fire protection when installed correctly and in conjunction with all fireproofing construction materials.

What is the best material for a heat shield?

The rigid heat shield has, until recently, been made from solid steel, but is now often made from aluminum. Some high-end rigid heat shields are made out of aluminum sheet or other composites, with a ceramic thermal barrier coating to improve the heat insulation.