Chapter 15.50
ROOFING AND REROOFING MATERIALSFOR COMMERCIAL AND RESIDENTIAL BUILDINGS

Sections:

15.50.010    Roof-covering requirements – Deleting combustible roofing materials from the list of permissible roofing materials for either the roofing of a new structure or the reroofing of an existing structure.

15.50.020    Express findings.

15.50.030    Waiver of Class A roofing requirements.

15.50.040    Roof coverings on new structures or on additions to existing structures.

15.50.050    Reroofing an existing structure.

15.50.010 Roof-covering requirements – Deleting combustible roofing materials from the list of permissible roofing materials for either the roofing of a new structure or the reroofing of an existing structure.

The roof covering on any structure regulated by this code shall be a Class A roof covering. All roof coverings on new structures and all reroofing shall be Class A roof covering. The Class A roof covering shall comply with the test standard for determining fire retardancy of roof-covering materials, as set forth in California Building Standards Code, 1998 Edition.

The roof-covering assembly includes the roof deck, underlayment, interlayment, insulation, and the Class A covering. [Ord. 99-14; Code 1990 § 8.11.01.]

15.50.020 Express findings.

Extreme surface temperatures common in the Pass area deteriorate and dry out building materials, and the high winds create extreme fire conditions which are detrimental to the general public. [Ord. 99-14; Code 1990 § 8.11.02.]

15.50.030 Waiver of Class A roofing requirements.

A waiver of this requirement may be applied for only when an addition to an existing structure will not increase the combustible roof area more than 25 percent. If a waiver of this requirement is desired, an application for waiver shall be filed with the building official.

The building official shall determine if a waiver is appropriate. An appeal of the building official’s decision to deny a waiver may be made to the planning commission if a written notice of the appeal is filed with the city clerk. The decision of the planning commission to affirm the building official’s denial of a waiver may be appealed to the city council if a written notice of the appeal is filed with the city clerk. The decision of the city council shall be final. [Ord. 99-14; Code 1990 § 8.11.03.]

15.50.040 Roof coverings on new structures or on additions to existing structures.

All roof coverings installed on new structures or on additions to existing structures, with the exception of patio and similar covers as determined by the building official, shall be Class A fire retardant roof coverings and conform to the California Building Standards Code, 1998 Edition, for Class A roof coverage. [Ord. 99-14; Code 1990 § 8.11.04.]

15.50.050 Reroofing an existing structure.

All reroofings of existing structures, including partial reroofings, shall be Class A fire retardant roof coverings that conform to the California Building Standards Code, 1998 Edition, for Class A roof coverage.

This requirement shall not apply to the partial reroofing of an existing structure where the reroofing repairs, replaces, or overlays less than 25 percent of the roof area of the structure. If the reroofing repairs, replaces, or overlays more than 25 percent but less than 50 percent of the roof area of the structure, this requirement shall apply, but an application for a waiver of this requirement may be filed with the building official. The building official shall determine if a waiver is appropriate. An appeal of the building official’s decision to deny a waiver may be made in accordance with CMC 15.50.030. No application for a waiver may be filed or granted if the reroofing repairs, replaces, or overlays 50 percent or more of the roof area of the structure. [Ord. 99-14; Code 1990 § 8.11.05.]