Question

The time it takes to wick away all the hydrate depends on the drywall thickness and the amount of heat that is being absorbed. Most test give a horizontal 5/8 inch thick drywall assembly a _______ minute rating.

a) 30-minute
b) 2-hour
c) 3-hour
d) 4-hour

Answer 1

A 5/8 inch thick drywall assembly has a 2-hour fire-resistance rating. Insulation and air sealing techniques are employed in homes to manage heat transfer and air infiltration, aimed at energy efficiency and air quality.

Step-by-step explanation:

The horizontal 5/8 inch thick drywall assembly is typically given a 2-hour fire-resistance rating. In the context of home construction, this rating indicates the time period that the wall can resist a standard fire before failing structurally. This 2-hour rating ensures that there is sufficient time for occupants to evacuate in the event of a fire and for firefighters to respond and control the fire.

Homes are designed with various insulation methods, and advanced measures are taken to reduce air infiltration, which is the process of outside air leaking into the house through various openings. The goal is to achieve a balanced environment that both conserves energy by reducing the rate of heat transfer and maintains healthy indoor air quality by allowing a certain amount of fresh air exchange.