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IRC 2009 Habitable Attics. Agenda Definitions Why designate space as Habitable Attic? Requirements Examples Further help 2.

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Presentation on theme: "IRC 2009 Habitable Attics. Agenda Definitions Why designate space as Habitable Attic? Requirements Examples Further help 2."— Presentation transcript:

1 IRC 2009 Habitable Attics

2 Agenda Definitions Why designate space as Habitable Attic? Requirements Examples Further help 2

3 Habitable Attic Definition IRC Definition: » ATTIC, HABITABLE. A finished or unfinished area, not considered a story, complying with all of the following requirements: » 1. The occupiable floor area is at least 70 square feet (17m 2 ), in accordance with Section R304, » 2. The occupiable floor area has a ceiling height in accordance with Section R305, and » 3. The occupiable space is enclosed by the roof assembly above, knee walls (if applicable) on the sides and the floor-ceiling assembly below. 3

4 Why Designate Space as Habitable Attic? Enables Designer to gain a 5 th Floor while staying in IRC 4

5 Habitable Attic Requirements Minimum floor area (70ft 2 ) Minimum ceiling height (5’ for > 50% of room) Minimum floor loading (30psf Live) Fixed stairway Smoke alarm Emergency egress window 5

6 Habitable Attic Examples Bonus Rooms above a Garage Any attic above a relatively wide house where the rafters create enough headroom & is serviced by a fixed stair 6

7 Habitable Attic – Further Reading Pennsylvania Housing Research Center » Habitable Attics Habitable Attics 7


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