What is Type C Gypsum?
Type C is an industry phrase to designate enhanced gypsum panels that exceed the requirements for Type X gypsum board in ASTM C1396. Type C panels typically have a shrinkage-compensating additive, and when exposed to heat, the Type C gypsum board expands providing more fire-resistance at joints and seams.
What is Firecode?
Filters. A set of building and property regulations designed to establish a mandatory standard for a building’s ability to resist the start and spread of a fire as well as facilitating the prompt and safe evacuation of the occupants.
What is the fire rating for Type C drywall?
Surface Burning Characteristics: Flame Spread rating of 15 and Smoke Developed rating of 0, in accordance with ASTM E 84, (UL 723, UBC 8-1, NFPA 255, CAN/ULC-S102).
What is a 2 hour rated wall?
The 2-Hour Area Separation Wall System is a 2-hour fire wall consisting of 2 in. (50.8 mm) light-gauge steel H-Studs that secure two layers of 1 in. A fire-rated wall is a feature of a building’s passive fire protection system that has been checked and certified by the proper regulatory agency.
How much does Type C drywall cost?
The cost difference between type-X and type-C fire-resistant drywall is small, only a few cents per square foot. Expect to pay around $11 for a 5/8-in. -thick 4-ft.
How much does 5/8 Type C drywall weigh?
The Weight of a Sheet of Drywall A 5/8″ sheet of drywall, which is used to achieve fire ratings, typically weighs a little over 70 pounds. Also, depending on their dimensions, special types of drywall including moisture resistant products are often even heavier.
Does thicker drywall help with sound?
This tight, dense layer is actually quite a good conductor of sound, and soundproofing a wall constructed with standard drywall requires other framing adaptations, such as building extra-thick walls and filling the cavities with insulation, or installing sound-dampening sheets behind the standard drywall.
Which drywall is best for soundproofing?
There are various drywall types, but the Type X drywall is the most commonly used for soundproofing. It is a fire-resistant board, and a board of 5/8″ thickness can resist fire for an hour, which concurrently makes it the best drywall to reduce noise.
Can you put 2 layers of drywall?
Install a second layer of drywall on top of the first layer to create a better sound barrier as well as better insulation. Install the first layer of drywall with the sheets vertically against the studs, and the second layer at 90 degrees — or on its side — to the first layer so that the seams don’t line up.
Is it OK to put drywall over drywall?
One of the fastest ways to cover old, damaged, or cracked plaster walls is to hang drywall over them. Using 1/4-inch sheets, you can cover old imperfections without adding too much additional finish work.
Is it OK to drywall over popcorn ceiling?
This method involves installing a complete layer of 1/4-, 3/8-, or 1/2-inch drywall over the popcorn ceiling, screwing the drywall into the ceiling joists above the original ceiling. Adding a new drywall layer also gives you the option of insulating directly over the old ceiling before adding the new drywall.