Type A Narrow Rib Roof Deck

Type a roof deck is a 1 deep structural steel roof deck that supports various types of roofing materials.

Type a narrow rib roof deck. Standard or cellular acoustic or vented interlocking or nested side laps b deck is among the most flexible of our 1 inch deep roof decks. Type a roof deck is 1 5 deep. Also known as narrow rib this structural metal roof deck provides a wide support surface for various types of rigid insulation and roofing materials. For example a roof that was constructed in the 1970 s may have supports at 5 0 on center with 22 gauge type a roof deck.

Type b wide rib structural roof deck is a high performance cost efficient choice with a variety of options to meet multiple project needs. At 36 wide this structural metal transfers horizontal and vertical loads into the building frame. 1 narrow rib type a. Type a narrow rib.

3 deep rib type na acoustical. Type a roof deck narrow rib typical fastener layouts type b cellular type n cellular type j cellular type h cellular type b roof deck type f roof deck type a roof deck type n roof deck 1 1 2 composite normal weight 1 1 2 composite lightweight 2 composite normal weight 2 composite lightweight 3 composite normal weight 3 composite lightweight type s. Type a narrow rib roof deck description. Type a steel roof deck is rarely used for new construction projects.

Metal roof decks are available in 1 1 2 deep type a narrow rib type f intermediate rib type b wide rib or 3 deep type n deep rib. 1 intermediate rib type f. This specific type of roof deck is best used in conjunction with thinner rigid insulation. 1 wide rib type ba acoustical.

It provides a maximum top surface contact area which is suitable for thinner rigid boards and the nest able quality eliminates the need for die set ends to reduce installation costs. Type a narrow rib deck is designed to allow the use of the most economical insulation materials. A roof decking also known as narrow rib roof deck provides a wide support surface for various types of rigid insulation and roofing materials. 15 16 1 1 wide rib type b also available in stainless steel 1 wide rib type bv vented.

Since the existing narrow rib type roof deck may have a stiffening rib in the top flange the supports may be spaced further apart than modern type a deck can span at the same gauge. They are typically available in either prime painted gray or galvanized g60 or g90 and type b is available with a white primer bottom. 3 deep rib type n. D mac industries provides type a a narrow rib roof deck.