Steel Roof Deck Ul Assembly

Ul standard ul 1256 edition 4 standard for fire test of roof deck constructions edition date.

Steel roof deck ul assembly.

Steel concrete poured gypsum require testing for horizontal spread of flame. Ul fire tested assembly ul 1256 under deck flame spread. D horizontal membrane 52 shaft wall used in a horizontal plane. For homeowners find a retail store find a building professional customer.

For the most up to date fire resistance ratings refer to the ul online certifications directory ul g556. C roof ceilings45 51 steel framed including steel bar joist framing steel c joist framing steel truss and steel roof deck. Metal panel roof systems require a minimum 3 8 air gap between the underside of the metal panel and the covered or uncovered insulation board. Roof deck construction 457.

Wood framed including dimensional lumber engineered joist and truss. According to building codes roof assemblies incorporating foam plastic insulation installed on a steel deck must include a thermal barrier typically 1 2 inch gypsum board or equivalent between the deck and the foam plastic insulation. 10 pancake head tek screw. Wood plywood tectum require testing for both horizontal spread and vertical penetration of flame.

Steel decking is used in many applications but is particularly well suited to roofing and flooring. The following information has been referenced from the ul online certification directory document. Ice and water shield. The panel clips are to be attached to the corrugated metal substratum with one no.

Any ul classified type g1 g2 or g3 base ply sheet type 15 20 or 30 felt or ul classified prepared roofing accessory or gcp applied technologies inc. No limitations impact. A full line of deck accessories such as end closure and pour stop is also available from vulcraft. October 31 2002 ansi approved.

1 877 4ad mix1 1 877 423 6491. Noncombustible roof decks nc. Coated steel or aluminum roofing panels mechanically fastened. The thermal barrier may be eliminated if the complete roof assembly passes either fm 4450 or ul 1256.

Combustible roof decks c.