Section 675IAC14-4.3-27. Section R310; emergency escape and rescue openings

   Change Section R310 as follows:

(1) Change the first sentence of Section R310.1 to read as follows: Every sleeping room shall have at least one openable emergency escape and rescue opening that opens directly to the exterior.

(2) Delete the second sentence of Section R310.1 without substitution.

(3) In Section R310.1.2, change "24 inches (610 mm)" to "22 inches (559 mm)".

(4) Add Section R310.1.5 to read as follows: R310.1.5 Sleeping room replacement window alterations. When replacing existing sleeping room windows, at least one of the replacement windows within that sleeping room shall comply with Section R310.5. Replacement windows that do not meet the current emergency escape requirements of Section R310, without structural alterations to the dwelling, may be installed as long as they meet the following requirements.

1. Replacement window installation shall not reduce the existing net clear opening by more than 6 inches horizontally and 6 inches vertically, except that awning replacement windows shall not reduce the existing net clear opening by more than 3 inches vertically.

2. In no case shall the replacement window net clear opening height be less than 22 inches (559 mm) and the net clear opening width be less than 20 inches (508 mm).

3. Double hung or sliding replacement windows shall have both sashes removable without the use of a key or tool. Single hung installations are not allowed by this section.

4. Casement and awning replacement windows may obtain the required net clear opening with the use of egress hardware.

5. If the replacement window cannot meet the minimum requirements listed in subdivisions 1, 2, 3, and 4, the existing window shall be replaced with a like window without reducing the existing net clear opening.

(5) Add Section R310.3.1 to read as follows: R 310.3.1 Door swing. In areas subject to snow or ice accumulation, doors installed at the bottom of bulkhead enclosures to basements that serve as escape and rescue openings shall swing into the structure.

(6) Add Section R310.5 to read as follows: R310.5 Emergency escape windows under decks and porches. Emergency escape windows are allowed to be installed under decks and porches provided the location of the deck or porch allows an unobstructed passageway, not less than 30 inches (762 mm) high, 30 inches (762 mm) wide and not more than 20 feet (6.1 m) in length, to a yard or court.

(Fire Prevention and Building Safety Commission; 675 IAC 14-4.3-27; filed Jun 13, 2005, 3:00 p.m.: 28 IR 3266, eff 90 days after filing with the Secretary of State; filed Mar 6, 2008, 11:13 a.m.: 20080402-IR-675070483FRA; readopted filed Aug 4, 2011, 8:35 a.m.: 20110831-IR-675110254RFA)