Document Sample

Part A:     Ordinance

1.        The regulations contained here shall be the Coconino County Roof Covering Ordinance.

2.        The purpose of this ordinance is to provide for all structures a minimum standard for roof coverings,
          including but not limited to residential, commercial, industrial, agricultural, accessory structures and
          for re-roofing of any existing structure.

3.        The scope of this ordinance shall serve as the minimum standard for fire resistive classifications of
          roof covering and installation guidelines according to manufacturers specifications for areas of
          severe climate, and high wind areas.

Part B:     Amendments

This section applies to fire resistive roof covering classifications, material and assemblies amending the
1994 Uniform Building Code as follows:

1.        Amend Section 1501-Scope, 2nd paragraph to be rewritten to state: Disregarding the requirements
          of this chapter, combustible roof coverings are not allowed in any type of construction; subject to the
          requirements of this chapter, combustible roof insulation may be used in any type of construction
          when installed according to manufacturers specifications and only when part of a Class B roof
          covering assembly minimum.

2.        Amend Section 1501.1-Standards of Quality, by deleting Items 1.2, 1.4 and 1.7 of subsection 1; Add
          1501.1.5 to read: Any roof coverings, materials and assemblies shall be listed by an approved
          agency and meet UBC standards for Class B minimum roof coverings, materials and assemblies, use
          Class A when required by code.

3.        Amend Section 1503-Roof Covering Requirements and Table 15-A Minimum Roof Classes.

          a.     Adding: The roof covering on any new structure or for the re-roofing of existing structures
                 regulated by this ordinance shall be as specified in Table 15-A with exceptions that Class C
                 and non-rated roof coverings, materials, and assemblies are “not permitted.”

          b.     Modify Table 15-A for Class C and non-rated roof covering, material, and assemblies, where
                 allowed for occupancy groups and types of construction to “not permitted.” Use Class B
                 roof covering, material and assembly’s minimum. This is to include any footnote to Table
                 15-A and any exceptions within the code.

4.        Amend Section 1504-Roof Covering Classification, by deleting Sections 1504.3 and 1504.4 for
          Class C roof covering and non-rated roof covering respectively and add “not permitted.”
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5.        Amend UBC Section 1504.5 Special Purpose Roofs. Add Section 1504.5.2.1 to read: The special
          purpose roofs will only be allowed when the wood shingle or shake is Class B minimum.

6.        Amend UBC Section’s 1507.12 and 1507.13 by adding wood shingles and shakes shall be Class B
          minimum. Note: wood shingles and shakes used shall be factory treated Class B minimum, per UL
          Specification 790, (October 5, 1983), in which requires no re-treatment for the life of the roof, to
          maintain the fire resistive integrity and rating.

Part C:        Re-roofing of Existing Structures

1.        When an existing structure of any type of construction is to be re-roofed, a re-roofing permit shall be
          obtained from the Building Department.

2.        Amend the Uniform Building Code by adopting Appendix Chapter 15 for re-roofing.

          a.        Amend UBC Section 1501 - Scope, by adding Appendix Chapter 15 for re-roofing including
                    any amendments as added herein.

          b.        Amend UBC Appendix Chapter 15 Section 1514 - General, by adding: Roof coverings,
                    materials, and assemblies shall be Class B minimum and Class C and non-rated roofing shall
                    not be permitted. This shall apply to all sections of this appendix.

          c.        Amend UBC Appendix Chapter 15 Section 1515 - Inspections, by adding: Inspections are
                    required prior to re-roofing when the existing roof surface has been properly prepared for the
                    new roof covering. Roofing materials shall be present on the job site so the inspector can
                    determine that the materials meet the Class B rating minimum and that the installer will
                    follow manufacturers installation requirements as listed on the roofing material packages. In
                    areas of severe climates, the ice dam eave protection shall be in place at the time of

Part D:        Roofing in a severe climate, high wind areas and low slope roofs.

          1.        Amend Section 1503 - Roof Covering Requirements, by adding: Section 1503.1 to read:

                    a.     All areas of Coconino County except the areas surrounding Page, Tuba City,
                           Winslow and Ash Fork. Roof eaves shall be additionally protected as for severe
                           winter climate and ice dams as required in the UBC Chapter 15 Tables 15-B-1, 15-B-
                           2, 15-D-1, and 15-D-2, and according to manufacturers specifications.

                    b.     When asphalt shingle re-roofing is applied over existing layers of shingles, and
                           inspections show evidence of damage from ice build-up on the eaves provisions shall
                           be made for proper installation of ice dams in severe climate areas by removing the
                           existing roofing at the eaves as required down to the roof sheathing.

          2.        Amend Section 1503 - Roof Covering Requirements by adding Section 1503.2 to read: All
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             areas of Coconino County shall be considered high wind areas.

             a.      Asphalt shingle applications shall follow manufacturers specifications for high wind

             b.      Six nails shall be used on strip shingles, according to manufacturers specifications.

             c.      In the cold months of the year when self-seal tab shingles will not adhere, including
                     but not limited to; November, December, January, and February, self-seal tab
                     asphalt shingles shall be additionally hand sealed in place so the shingles will adhere,
                     and the wind will not affect the installation with an application as recommended
                     according to manufacturers specifications

      3.     Low Slope Roofs; Amend Section 1503 by adding 1503.3.a and 1503.3.b.

             a.      When asphalt shingles are installed on slopes 2 in 12 to less than 4 in 12
                     manufacturers installation specifications shall be followed and code requirements.

             b.      Roofing installed on slopes less than 2 in 12 shall be installed as a membrane roof
                     covering of built-up hot mop, cold process, torch down materials all of a Class B
                     minimum roof covering classification or metal roofing when installed according to
                     manufacturers specifications.

      ROOF COVERING ORDINANCE – Previously listed as Number 3 of Ordinance 97-01 adopted
      May 5th, 1997.

      Amend IBC Chapter 15, Roof Assemblies and Roof Top Structures, Section 1501.1 Scope and
      IRC Chapter 9, Roof Assemblies Section R901.1 Scope, to include the Coconino County Roof
      Covering Ordinance which serves as the minimum standard for fire resistive classification of
      roof coverings, severe climates, and high wind areas, adopted by reference; copies available at
      the office of the Clerk of the Board of Supervisors and the Department of Community

      To the provisions of the Roof Covering Ordinance add A and B as follows:

      A.     Metal roofing shall be installed as a Class B roof covering assembly by using
             approved underlayment sheets that are fire resistive, installed according to the
             requirements of their listing.

      B.     Listed and approved Solar Type shingles for the purposes of generating electric power
             may be used that have a minimum of a Class C roof covering assembly, installed
             according to manufacturer’s specifications placed over underlayment sheets that are fire