Question

Enclosed accessible space under stairs shall have walls, under-stair surface and any soffits protected on the enclosed side with ____ -gypsum board.

1) Fire-resistant
2) Water-resistant
3) Sound-resistant
4) Heat-resistant

Answer 1

Enclosed spaces under stairs should be protected with fire-resistant gypsum board according to building safety codes to slow fire spread and provide occupants with more evacuation time.

Step-by-step explanation:

Enclosed accessible space under stairs shall have walls, under-stair surface, and any soffits protected on the enclosed side with fire-resistant gypsum board. This requirement is established in many building codes to ensure the safety of occupants by slowing the spread of fire. Gypsum board rated for fire resistance contains fibers and other materials that help it withstand exposure to high temperatures for a certain period, which allows occupants more time to evacuate in the case of a fire.