Required Thickness Of Roof Sheathing In N C

Existing building code ncebc north carolina state building code.

Required thickness of roof sheathing in n c.

Roofing components roofing insulation and cover boards adhesives cements and primers specialty roofing products fasteners and plates coatings. Fasteners for asphalt shingles shall be galvanized steel stainless steel aluminum or copper roofing nails minimum 12 gage 0 105 inch 3 mm shank with a minimum 3 8 inch diameter 9 5 mm head complying with astm f1667 of a length to penetrate through the roofing materials and not less than 3 4 inch 19 1 mm into the roof sheathing. N fastener spacing and size requirements for coastal construction are typically different than for non coastal areas. Wood structural panel roof sheathing shall be bonded by exterior glue.

For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. N sheathing loss is one of the most common structural failures in hurricanes. Roof sheathing conforming to the provisions of table 2304 7 1 2304 7 2 2304 7 3 or 2304 7 5 shall be deemed to meet the requirements of this section. Mechanical code ncmc north carolina state building code.

N the highest uplift forces occur. Roof sheathing installation key issues n insufficient fastening can lead to total building failure in a windstorm. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Never attach roof sheathing with staples.

Building code ncsbc north carolina state building code. State construction office sco north carolina state building code. Hvac insulation duct board duct liner external duct insulation flexible duct insulation accessories the source insulation intel. Sheathing should be a minimum of 19 32 inch thick.

Roofing design guidelines and policies low slope membrane roof 2016 page 7 b.