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(SECTION R302 FIRE-RESISTANT CONSTRUCTION) R302.2 Townhouses. Each townhouse shall be considered a separate building and shall be separated by fire-resistance rated wall assemblies meeting the requirements of Section R302.1 for exterior walls. Exception: 1. Where the entire adjoining units are sprinklered in accordance with Section R313, a common 1-hour fire-resistance-rated wall assembly in accordance with Section R302.2.90 may be utilized. 2. Where any adjoining unit or a portion thereof is not sprinklered in accordance with Section R313, a common 2-hour fire-resistance-rated wall assembly in accordance with Section R302.2.90 may be utilized. R302.2.90 Special Separations. In accordance with the Exception on Section R302.2, fire-resistance-rated wall assemblies shall be tested in accordance with ASTM E 119 or UL 263 if such walls do not contain plumbing or mechanical equipment, ducts or vents in the cavity of the common wall. The wall shall be rated for fire exposure from both sides and shall extend to and be tight against exterior walls and the underside of the roof sheathing. Electrical installations shall be installed in accordance with Chapters 34 through 43. Penetrations of electrical outlet boxes shall be in accordance with Section R302.4. #" (SECTION R309 GARAGES AND CARPORTS) R309.5 Fire sprinklers. Where applicable by section R313.90, private garages shall be protected by fire sprinklers where the garage wall has been designed based on Table R302.1(2), Footnote a. Sprinklers in garages shall be connected to an automatic g. sprinkler system that complies with Section P2904. Garage sprinklers shall be residential sprinklers or quick-response sprinklers, designed to provide a density of 0.05 gpm/ft2. Garage doors shall not be considered obstructions with respect to sprinkler placement. (SECTION R310 EMERGENCY ESCAPE AND RESCUE OPENINGS) R310.90 Alterations and additions. All unfinished areas and reconfigured spaces converted to sleeping rooms and unfinished basement spaces being converted to habitable space shall have emergency escape and rescue openings. Exception: Last Printed:10/28/2013 6:01:00 PM 12 of 16 Residential Code