Steel Roof Deck Corrosion

Steel roof deck is the predominant structural component used in virtually all flat roofs.

Steel roof deck corrosion.

1 in 1985 about three years after construction when several new penetrations were cut in the asphalt built up roof bur. The series of design manuals developed since 1939 have proven successful in their approach to steel deck design and corrosion protection. James river steel inc. Steel roof deck shall extend over three or more spans.

This exposed moderate to severe corrosion of the deck. The discovery of corrosion of the metal deck was initially made on the roof of project no. In projects calling for a flat roof a roofing membrane with rigid insulation over polyiso board and steel deck is the most common assembly. Corrosion resistant roof fasteners either stainless steel or coated are crucial.

The steel deck institute s philosophical approach to deck design is that a design professional will review the application of the information presented in the steel deck institute design manual. This corrosion was initially thought to be dormant and isolated to active leaks. Is a virginia based manufacturer of corrugated panels in stainless steel flooring aluminum galvanized steel galvalume and fiberglass for industrial and architectural roofing siding and decking. Recent studies by various parties have examined premature corrosion of metal roof decks where fiberboard insulation was directly attached to the top surface of the metal deck and or where ferrous mechanical fasteners were placed through the fiberboard to anchor it to the deck 1 figures 1 and 2.

Steel vulcraft wheeling or. The deck is a structural panel that spans over roof joist or purlins to provide a flat. Corrosion resistant architectural metals industrial corrugated stainless steel. Steel roof decks that were in contact with wet phenolic insulation will have major corrosion problems.

2 01 steel roof deck a. Steel roof deck shall be as manufactured by u s. Corrosion of the steel be controlled and not allowed to affect the integrity and strength of the product. For most 1 1 2 38 mm deep roof decks the loss of one rib either by denting or penetration can be tolerated and no reinforcement will be required.

Horizontal as well as vertical loads may be considered. Roof deck roof deck is designed to carry live and dead load without acting in conjunction with other materials. Steel roof deck shall be 22 gauge galvanized steel profile to match existing.