Attic Access Size Bc

If the opening is located in a wall the 30 inch dimension must be vertical.

Attic access size bc.

Lightweight door easy 1 person install alternative to pull down ladders e z hatch mark d. Building codes according to the 2006 international residential code r807 1 attic access homes with combustible materials in the ceiling and roof construction must have an access to attic areas that exceeds 30 square feet and with a vertical height of 30 inches or greater. If the access is located in the ceiling the minimum. It s important to understand the opening size you have or will create to ensure you select the correct attic ladder product for your home.

Measure the rough opening in your ceiling both the width and length. What is the minimum size for attic access opening. The vertical height shall be measured from the top of the ceiling framing members to the underside of the roof framing members. There are hundreds of things to detail properly to achieve an airtight home but one of the most commonly overlooked in a typical new house is the attic access hatch.

The ladder offers a universal fit for homes with ceiling heights 8 10 ft designed for attic openings 22 5 in. Lightweight aluminum construction boasts a 375 lb. The rough opening cannot be less than 22 inches by 30 inches and must be located in a hallway or other readily accessible location. The rough framed opening.

The 2012 international residential code requires an attic access opening for attics with an area greater than 30 square feet and a vertical height in excess of 30 inches. R807 1 attic access buildings with combustible ceiling or roof construction shall have an attic access opening to attic areas that have a vertical height of 30 inches 762 mm or greater over an area of not less than 30 square feet 2 8 m 2. The rough framed opening must be a minimum of 22 inches by 30 inches. Standard openings are 22 5 x 54 but some homes have wider openings.

Access bc codes online bc building code the bc building code applies to the construction of buildings including additions substantial alterations buildings undergoing a change for occupancy and upgrading of buildings to remove an unacceptable hazard. This is generally about a 22 by 30 hole in the ceiling of your house into unconditioned space so it certainly deserves some consideration. And joists 16 o c. R 42 attic access hatch fits between trusses 24 o c.

Buildings with combustible ceiling or roof construction shall have an attic access opening to attic areas that exceed 30 square feet 2 8 m2 and have a vertical height of 30 inches 762 mm or greater.