How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manufactured and modular homes
What is the minimum size for attic access opening?
Tuesday, January 28, 2020
The rough opening cannot be less than 22 inches by 30 inches and must be located in a hallway or other readily accessible location. If the opening is located in a wall, the 30 inch dimension must be vertical. If the access is located in the ceiling, the minimum unobstructed headrom above the opening must be 30 inches measured vertically at some point over the access. Also, the opening must be large enough to remove any appliance installed in the attic, such as an air conditioning air handler. These specs are per R807.1 of the International Residential Code (IRC) and the Residential Edition of the Florida Building Code (FBC).
Also, see our blog posts Why is there no attic access hatch in the house? and Is an attic required to have a light by the building code? and What are the hazards to avoid when going into an attic?
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To learn more about roofs and attics, see these other blog posts:
• Why is my roof sheathing sagging between the trusses?
• Why is granule loss a problem for an asphalt shingle roof?
• What are the mistakes to avoid when doing attic improvements?
• What causes roof shingles to curl up at corners?
• What causes shingles to buckle along a line on the roof?
• What causes leaks at a fake roof dormer?
• What causes a sagging roof ridge line?
• What causes bubble-like blisters in a built-up and gravel roof?
• Why does it cost so much more to replace a steep roof than a low slope roof?
• What is "ponding" on a flat roof?
• How can I inspect my roof for hurricane damage?
• Why is premature curl of roof shingles a problem?
• How can I tell if a roof has more than one layer of shingles?
• What are the common problems with attic insulation?
• How can I tell if the house needs a new roof?
• Why does my homeowner's insurance want a roof inspection?
Visit our ROOF AND ATTIC page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.
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