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 Washington Administrative Code (Last Updated: November 23, 2016)
 Title 51. Enterprise Services, Department of (Building Code Council)
 Chapter 51-11C. State Building Code adoption and amendment of the 2015 edition of the International Energy Conservation Code, Commercial.

  Section 51-11C-610225. Tables A102.2.5—Default U-factors for metal building roofs.  

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  • Table A102.2.5
    Default U-factors for Metal Building Roofs
     
    (Multiple R-values are listed in order from inside to outside)
    a
    A standing seam roof clip that provides a minimum 1.5 inch distance between the top of the purlins and the underside of the metal roof panels is required.
    b
    A minimum R-3 thermal spacer block is required.
    c
    A minimum R-5 thermal spacer block is required.
    [Statutory Authority: RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. WSR 13-04-056, § 51-11C-610225, filed 2/1/13, effective 7/1/13.]
RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. WSR 13-04-056, § 51-11C-610225, filed 2/1/13, effective 7/1/13.