Big Bear Lake Municipal Code Ch. 15.36 Fire Retardant Roof Coverings

Footnotes:

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Editor's note— Ord. No. 2019-475, § 7, adopted October 28, 2019, repealed the former chapter 15.36, §§ 15.36.010, 15.36.020, and enacted a new chapter 15.36 as set out herein. The former chapter 15.36 pertained to similar subject matter and derived from Ord. 92-219 § 6(part), 1992; Ord. 95-264 § 1(part), 1995; Ord. 95-264 § 1(part), 1995; Ord. 2008-376 § 4, 2008; Ord. No. 2010-411, § 4, 11-22-2010; Ord. No. 2014-433, § 4, 7-14-2014; Ord. No. 2016-453, § 5, 10-24-2016.

The provisions of this chapter are minimal requirements, and apply to all construction, erection, enlargement, alteration, repair, moving, conversions, change of occupancy (use) and maintenance of building(s) or structure(s) within the City of Big Bear Lake. All such buildings or structures shall be made to comply with this chapter: (i) when such building or structure is increased by twenty-five percent (25%) or more of the building or structure's square footage; (ii) prior to, and as a condition precedent to, final approval by the city building official, or his or her designee, of the remodeling of the building or structure where the replacement of the wood shake shingle roof would cost less than fifty percent (50%) of the total calculated value of the remodel; or (iii) prior to, and as a condition precedent to, the issuance, reissuance or renewal of any private home rental license, or the reinspection of a building or structure for the purposes of the reissuance or renewal of such a license. When the provisions of the California Building Code, which is adopted by the city, are in conflict with these provisions, the more restrictive in terms of fire resistance or fire retardance shall apply.

(Ord. No. 2019-475, § 7, 10-28-2019; Ord. No. 2022-508, § 7, 11-7-2022)

A. Section 1505 of the California Building Code is amended by adding Section 1505.1.4 and Section R902.1 of the California Residential Code is amended by adding Section R902.1.4 to read as follows:

"The entire roof covering of any building hereafter constructed, including re-roofing of existing buildings exceeding ten percent (10%) or more of the existing roof, shall be Class "A" covering as defined in Chapter 15 of the California Building Code. The removal of more than twenty-five percent (25%) of the roof sheathing and or supporting structural components shall constitute a new roof thereby requiring the entire roof structure that is under repair to be in compliance with the California Building Code."

B. Louvers, ventilators or openings in walls, roofs, attics, and underfloor areas having headroom less than four feet in height which are not fitted with sash or doors, shall be covered with wire screen. The screen covering such openings shall be of galvanized metal or copper and shall have a maximum mesh of one-eighth inch. Such underfloor areas four feet or more in height shall comply with subsection C of this section. Eave- type attic ventilators are not permitted. The space between rafters at exterior walls shall be solidly filled with tight-fitting wood blocks one and one-half inches thick.

C. Unenclosed underfloor areas of stilt-type or cantilevered-type construction, when constructed of wood, shall have structural members with a least dimension of six inches nominal, or be protected with materials approved for one-hour fire-resistive construction on all exposed surfaces. Floor decking, when of wood, shall be one and one-half inch nominal thick tongue and groove plywood, or be protected with materials approved for one-hour fire-resistive construction on the underside.

D. Cantilevered or standard type decks shall be constructed with minimum one and one-half inch thick wood decking or be of incombustible or one-hour fire-resistive construction on the underside.

E. Every chimney used in conjunction with any fireplace, incinerator, or heat-producing appliance in which solid or liquid fuel is used, shall be maintained with a spark arrestor constructed with heavy wire mesh or other noncombustible materials with openings not to exceed one-half inch mounted in or over all outside openings, in a vertical or near vertical position visible from the ground.

F. The chief building official may waive the requirements of this section on those properties where it is determined by the chief of the fire department having jurisdiction that none of the following conditions exist:

1. Insufficient water supply or pressure;

2. Inadequate accessibility for fire suppression equipment;

3. Located in or within four hundred (400) feet of a hazardous fire area as determined by the chief of the fire department.

(Ord. No. 2019-475, § 7, 10-28-2019; Ord. No. 2022-508, § 7, 11-7-2022)