How Big Does An Attic Access Have To Be

Latch bolts not shown may be installed to help ensure a tighter seal.

How big does an attic access have to be.

Buildings with combustible ceiling or roof construction shall have an attic access opening to attic areas that exceed 30 square feet 2 8 m 2 and have a vertical height of 30 inches 762 mm or more. The code calls for a level service space at least 30 x 30 along all sides of the appliance where access is required. Provide a minimum of 6 8 of headroom the entire walking length of the stairs. The rough framed opening must be a minimum of 22 inches by 30 inches.

Saturday june 30 2018. In this situation it s likely that none of the bedrooms have direct access to a bathroom. Adding an insulated cover and weatherstripping to a pull down stairs can reduce infiltration and heat loss through this passageway. The pull down attic access hatch cover is made of flammable material.

The rough framed opening. I ve had some health issues and i ve been away from my desk. This does not meet the minimum approved fire rating necessary to maintain the integrity of the firewall separation between the garage and an open attic space. 1 attics that are small less than 30 square feet of area or under a low slope roof that does not have a minimum of 30 inches of clear opening height between the top and bottom structural members are not required to have an attic hatch by the building code.

Newman august 30 2007 2 28pm 8. The code reference is m1305 1 3. The walkway is required to be 24 wide. An attic access is often a big hole in the thermal envelope of the house.

A bedroom does not need access to a bathroom. The rough framed opening shall not be less than 22 inches by 30 inches 559 mm by 762. Think about a 3 bed 1 bath house. Attic stairs don t leave a hole in the ceiling attic hatch.

Recommend a qualified contractor replace or upgrade the access stairs as necessary. This does not mean they are not bedrooms. 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. To convert your attic to living space you cannot provide access via a ladder.