Constructing Fire Resistant Walls



If you have a typical gypsum on wood frame wall, it won’t resist damage from fires very long. However, if you use the right techniques and materials to construct your wall you can extend the length of time that your wall can resist fire and achieve an hourly fire resistance rating. If the wall stays intact, then you can prevent the fire from spreading while waiting for the firefighters to arrive and put it out.Using a UL listed fire resistant board is an effective method of increasing the wall’s fire resistance.

About Fire Resistant Board

Many companies choose to use fire resistant board when they are constructing the walls as it is less expensive than concrete or masonry. If your wallboard stays in the same place in the event of a fire, it help keep the wall’s support structure free of damage. Using fire resistant boards will keep the wall and its structure intact longer than if it was made of traditional non fire resistant boards.

For example, Type X gypsum wallboard is manufactured to resist fire, and it uses glass fibers and chemical additives to make it more stable when there is high heat in the area. The composition of the board, as well as the use of multiple layers on each face of the wall, prevents the board from falling away from the wall’s framing members ensuring the wall remains in place.

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