Section 3280.304 - [Effective 3/17/2025] Materials(a) Dimension and board lumber must not exceed 19 percent moisture content at the time of installation, except that treated lumber used for exterior purposes only and does not extend into the main home construction may have a moisture content exceeding 19 percent.(b) The standards for some of the generally used materials and methods of construction that are listed in this paragraph (b) are incorporated by reference (see § 3280.4 ). (1)Aluminum.(i) Aluminum Design Manual, Specifications and Guidelines for Aluminum Structures, Part 1-A (Aluminum Association).(ii) Aluminum Design Manual, Specifications and Guidelines for Aluminum Structures, Part 1-B (Aluminum Association).(2)Steel.(i) Specification for Structural Steel Buildings-AISC 360.(ii) North American Specification for the Design of Cold-Formed Steel Structural Members-AISI S100.(iii) Specification for the Design of Cold-Formed Stainless Steel Structural Members-SEI/ASCE 8.(iv) Standard Specifications Load Tables and Weight Tables for Steel Joists and Joist Girders-SJI.(v) Structural Applications of Steel Cables for Buildings-ASCE 19.(vi) Standard Specification for Strapping, Flat Steel and Seals-ASTM D3953.(3)Wood and wood products.(i) Basic Hardboard-ANSI A135.4 (Composite Panel Association).(ii) Prefinished Hardboard Paneling-ANSI A135.5 (Composite Panel Association).(iii) Engineered Wood Siding-ANSI A135.6 (Composite Panel Association).(iv) American National Standard for Hardwood and Decorative Plywood-ANSI/HPVA HP-1 (Decorative Hardwoods Association).(v) Structural Design Guide for Hardwood Plywood Wall Panels-HP-SG (Decorative Hardwoods Association).(vi) For Wood Products-Structural Glued Laminated Timber-ANSI/AITC A190.1.(vii) Structural Plywood (With Typical APA Trademarks)-NIST PS 1.(viii) APA Design/Construction Guide, Residential and Commercial Structures-APA E30-P.(ix) National Design Standard for Metal Plate Connected Wood Truss Construction, TPI 1.(x) Design and Fabrication of All-Plywood Beams-H815G.(xi) Panel Design Specification-APA D510C.(xii) Design and Fabrication of Glued Plywood-Lumber Beams-APA S812S.(xiii) Design and Fabrication of Plywood Curved Panels-APA S811P.(xiv) Design and Fabrication of Plywood Sandwich Panels, APA U814J.(xv) Performance Standard for Wood-Based Structural Use Panels-NIST PS 2.(xvi) Design and Fabrication of Plywood Stressed-Skin Panels-APA U813M.(xvii) National Design Specifications for Wood Construction, with Supplement, Design Values for Wood Construction-AWC NDS.(xviii) Wood Structural Design Data (AFPA).(xix) Span Tables for Joists and Rafters: American Softwood Lumber Standard (PS 20-10) Sizes-AWC-2012.(xx) Design Values for Joists and Rafters, Supplement to Span Tables for Joists and Rafters-AWC-2012.(xxi) Particleboard-ANSI A208.1 (Composite Panel Association).(xxii) North American Fenestration Standard/Specification for Windows, Doors and Skylights-AAMA/WDMA/CSA 101/I.S.2/A440 (CSA Group).(xxiii) Standard Test Methods for Puncture and Stiffness of Paperboard, and Corrugated and Solid Fiberboard-ASTM D781.(xxiv) Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials-ASTM D4442.(xxv) Standard Test Method for Laboratory Standardization and Calibration of Hand-Held Moisture Meters-ASTM D4444.(xxvi) Medium Density Fiberboard (MDF) For Interior Applications-ANSI A208.2.(xxvii) Standard Test Methods for Fire Tests of Building Construction and Materials-ASTM E119.(xxviii) Engineered Wood Construction Guide-APA E30V.(xxix) Plywood Design-APA Y510.(4)Other.(i) Standard Specification for Gypsum Board-ASTM C1396/C1396M.(5)Fasteners.(i) ICC-ES Evaluation Report: Power Driven Staples and Nails-ESR 1539.(6)Unclassified.(i) Minimum Design Loads for Buildings and Other Structures-ANSI/ASCE.(ii) Safety Glazing Materials Used in Buildings-Safety Performance Specifications and Methods of Test-ANSI Z97.1.(iii) Standard Specification for Rigid Poly (Vinyl Chloride) (PVC) Siding-ASTM D3679-09a.(iv) Standard Practice for Installation of Rigid Poly (Vinyl Chloride) (PVC) Siding and Soffit-ASTM D4756.(v) Standard Specification for Polypropylene (PP) Siding-ASTM D7254.(c) Materials and methods of construction utilized in the design and construction of manufactured homes which are covered by the standards listed in this section, or any applicable portion thereof shall comply with these requirements.(d) Engineering analysis and testing methods contained in these references shall be utilized to judge conformance with accepted engineering practices required in § 3280.303(c) .(e) Materials and methods of installation conforming to these standards shall be considered acceptable when installed in conformance with the requirements of this part.(f) Materials meeting the standards listed in this section (or the applicable portion thereof) are considered acceptable unless otherwise specified herein or unless substantial doubt exists as to conformance.(g) Wood products shall be identified as complying with the appropriate standards.40 FR 58752, Dec. 18, 1975, as amended at 42 FR 961, Jan. 4, 1977. Redesignated at 44 FR 20679, Apr. 6, 1979, as amended at 58 FR 55006, Oct. 25, 1993; 59 FR 15113, Mar. 31, 1994; 70 FR 72043 , Nov. 30, 2005; 78 FR 73982 , Dec. 9, 2013