(1)
Nail or staple size and spacing for the attachment of cladding and trim to wood framing, furring members or blocking shall conform to Table 9.27.5.4.-A.
(2)
Screw size and spacing for the attachment of cladding, trim and furring members to the web fastening strips of flat wall insulating concrete form (ICF) units shall conform to Table 9.27.5.4.-B where the 1-in-50 hourly wind pressure (HWP) is less than or equal to 0.60 kPa. (See Note A-9.27.5.4.(2))
Table 9.27.5.4.-A Attachment of Cladding to Wood Framing, Furring Members or Blocking
Forming Part of Sentence 9.27.5.4.(1)
Notes to Table 9.27.5.4.-A:
(1) The minimum fastener length need not exceed the minimum fastener penetration depth required by Article 9.27.5.7.
(2) The maximum spacing of 400 mm o.c. applies to nails and staples used to attach horizontally applied vinyl, insulated vinyl and polypropylene siding, unless a greater spacing is permitted in an evaluation report prepared by an accredited certification organization.
Table 9.27.5.4.-B Attachment of Cladding to Flat Wall ICF Units where the 1-in-50 HWP ≤ 0.60 kPa
Forming Part of Sentence 9.27.5.4.(2)
Notes to Table 9.27.5.4.-B:
(1) Wood shakes and wood shingles are permitted to be attached to horizontal wood furring members in accordance with Table 9.27.5.4.-A. The wood furring members shall be attached to the web fastening strips of flat wall ICF units with screws not less than 4.2 mm in diameter spaced horizontally not more than 400 or 450 mm o.c. (two horizontal spacing options are given to accommodate the 150 and 200 mm o.c. horizontal spacing options for web fastening strips).
(2) Two horizontal spacing options are given to accommodate the 150 mm o.c. and 200 mm o.c. horizontal spacing options for web fastening strips. The maximum vertical spacing of screws or masonry ties, as applicable, shall be 400 mm.
(3) Screws must be long enough to penetrate through the web fastening strips by a minimum of 6 mm.
(4) See also Subsection 9.20.5. for requirements on the support of masonry veneer.