AMENDMENTS TO THE CABO ONE AND TWO FAMILY DWELLING CODE 1995 EDITION

CHAPTER 3 - BUILDING PLANNING

(Amd) 301.2 Climatic and geographic design criteria. Buildings shall be constructed in accordance with the provisions of this code using the design criteria set forth in Tables 301.2a and 301.2b. These criteria shall be based solely or in part on the climatic and geographic conditions set forth in Figures 301.2a, 301.2b, 301.2c, 301.2f and 301.2g.

(Del) Figure 301.2d. Delete figure without substitution.

(Del) Figure 301.2e. Delete figure without substitution.

(Amd) Table 301.2a.

(Add) 301.7 Ungraded lumber. Pursuant to section 29-256b, C.G.S., the use of ungraded lumber is allowed in utility and miscellaneous structures as defined in the BOCA National Building Code/1996 portion of the State Building Code.

(Amd) 305.1 Minimum height. Habitable rooms, hallways, corridors, bathrooms, toilet rooms, laundry rooms and habitable basements shall have a ceiling height of not less than 7 feet for at least 50 percent of their required areas. Not more than 50 percent of the required area may have a sloped ceiling less than 7 feet in height with no portion of the required area less than 5 feet in height.

Exceptions:

1. The maximum projection below the required ceiling height of beams and girders spaced not less than 4 feet on center shall be 6 inches.

2. Ceiling height in basements without habitable spaces may not be less than 6 feet 8 inches clear except for under beams, girders, ducts or other obstructions where the clear height shall be a minimum of 6 feet 4 inches.

(Amd) 309.1 Opening protection. Openings from a private garage directly into a room used for sleeping purposes shall not be permitted. Other openings between the garage and residence shall be equipped with either 1 ¾-inch solid wood doors, 1 ¾-inch solid or honeycomb core steel doors or 20-minute fire-rated doors. Doors shall be fitted with a self-closing device.

(Amd) 309.2 Separation required: Garages attached side by side to residences shall be separated from the residence and its attic area by means of a minimum 5/8-inch type X gypsum board applied to the garage side. Garages beneath habitable rooms in residences shall be separated from adjacent interior spaces by a minimum 5/8-inch type X gypsum board on the garage side of all walls, ceilings, and combustible structural supports. Gypsum board joints shall be finished in accordance with the manufacturer’s requirements.

(Amd) 310.2.1 Minimum Size: All egress or rescue windows from sleeping rooms must have a net clear opening of 5.7 square feet. The minimum net clear opening height shall be 24 inches. The minimum net clear opening width shall be 20 inches.

Exception: Grade floor windows may have a minimum net clear opening of 5 square feet.

(Amd) 314.2 Treads and risers: The maximum riser height shall be 8-1/4 inches and minimum tread depth shall be 9 inches. The riser height shall be measured vertically between leading edges of the adjacent treads. The tread depth shall be measured horizontally between the vertical planes of the foremost projection of adjacent treads and at a right angle to the tread’s leading edge. The walking surface of treads and landings of a stairway shall be sloped no steeper than one unit vertical in 48 units horizontal (2 percent slope). The greatest riser height within any flight of stairs shall not exceed the smallest by more than 3/8 inch. The greatest tread depth within any flight of stairs shall not exceed the smallest by more than 3/8 inch.

(Amd) 314.6 Circular stairways: Circular stairways shall have a minimum tread depth and a maximum riser height in accordance with Section 314.2. The smaller radius of the stairway shall not be less than twice the width of the stairway. The minimum tread depth of 9 inches shall be measured from the narrower end of the tread.

(Amd) 316.1.1 Alterations and additions: When alterations or additions requiring a permit occur, or when one or more sleeping rooms are added or created in existing dwellings, the entire building shall be provided with smoke detectors located as required for new dwellings. The smoke detectors may be battery operated and are not required to be interconnected unless other remodeling considerations require removal of the appropriate wall and ceiling coverings to facilitate concealed interconnected wiring.

(Del) SECTION 324 - PROTECTION AGAINST RADON - Delete section and subsections without substitution.