Does the new 2020 FBC intend to provide FORMAL ENGINEERED tincap fastening patterns for field, perimeter's, corners, hips and ridges. at permit submission? Or is there a approved fastening pattern based upon height and exposure category, with no additional cost to contractor/building owner?
Lyle Jacobs
For adhered or mechanically attached insulation, anchor, and base sheets:
ROOFING APPLICATION STANDARD (RAS) No. 117-20
STANDARD REQUIREMENTS FOR BONDING OR MECHANICAL ATTACHMENT OF
INSULATION PANELS AND MECHANICAL ATTACHMENT OF ANCHOR AND/OR
BASE SHEETS TO SUBSTRATES
1. Scope
1.1 The standards set forth herein provide a means of determining proper attachment of anchor and/or base sheets and insulation panels.
1.2 All testing shall be conducted by an approved testing agency. This roofing application standard has been developed to provide a responsive method of complying with the requirements of Chapters 15 and 16 (High- Velocity Hurricane Zones) of the Florida Building Code, Building. Compliance with the requirements, procedures and examples specified herein, when using the tables contained in RAS 128, do not require additional signed and sealed engineering design calculations. All other calculations must be prepared, signed and sealed by a Professional Engineer or Registered Architect.
Note: Otherwise, design calculations are required.
Also, it is possible that individual building departments may have “deemed to comply” attachment for small residential flat roofs, but the building code does not.
Underlayments for asphalt shingles and concrete or clay roof tile are prescriptive:
Underlayment shall be attached to a nailable deck in a grid pattern of 12 inches (305 mm) between the overlaps, with 6-inch (152 mm) spacing at the overlaps.
Question answered by Mike Goolsby
Turnkey Roof Consulting
Catherine Duffin
Does the new 2020 FBC intend to provide FORMAL ENGINEERED tincap fastening patterns for field, perimeter's, corners, hips and ridges. at permit submission? Or is there a approved fastening pattern based upon height and exposure category, with no additional cost to contractor/building owner?
Lyle Jacobs
For adhered or mechanically attached insulation, anchor, and base sheets:
ROOFING APPLICATION STANDARD (RAS) No. 117-20
STANDARD REQUIREMENTS FOR BONDING OR MECHANICAL ATTACHMENT OF
INSULATION PANELS AND MECHANICAL ATTACHMENT OF ANCHOR AND/OR
BASE SHEETS TO SUBSTRATES
1. Scope
1.1 The standards set forth herein provide a means of determining proper attachment of anchor and/or base sheets and insulation panels.
1.2 All testing shall be conducted by an approved testing agency. This roofing application standard has been developed to provide a responsive method of complying with the requirements of Chapters 15 and 16 (High- Velocity Hurricane Zones) of the Florida Building Code, Building. Compliance with the requirements, procedures and examples specified herein, when using the tables contained in RAS 128, do not require additional signed and sealed engineering design calculations. All other calculations must be prepared, signed and sealed by a Professional Engineer or Registered Architect.
Note: Otherwise, design calculations are required.
Also, it is possible that individual building departments may have “deemed to comply” attachment for small residential flat roofs, but the building code does not.
Underlayments for asphalt shingles and concrete or clay roof tile are prescriptive:
Underlayment shall be attached to a nailable deck in a grid pattern of 12 inches (305 mm) between the overlaps, with 6-inch (152 mm) spacing at the overlaps.
Question answered by Mike Goolsby
Turnkey Roof Consulting