To convert your attic to living space you cannot provide access via a ladder.
Crawl space attic height.
For example if your foundation size is 30 feet by 30 feet 900 square feet you will need vents that have combined square footage of 6 square feet.
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.
In addition the appliance needs to be located so that there is a clear passageway from the crawl hole to the.
In attics with appliances the access hole is still a minimum of 22 by 30 inches.
Who among us doesn t love spending time in crawl spaces and attics.
Translated this code requirement means that you need 1 square foot of screened vent space penetrating the perimeter foundation for every 150 square feet of space in the crawl space.
I found out in an email from the building performance institute bpi however that the us occupational safety health administration osha will have new requirements for companies who send their workers into areas defined as confined spaces this.