Steel Roof Deck Corrosion

The roof ceiling assembly is vital to the long term success of a project.

Steel roof deck corrosion.

Steel roof decks that were in contact with wet phenolic insulation will have major corrosion problems. Roof deck roof deck is designed to carry live and dead load without acting in conjunction with other materials. 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. 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.

Corrosion resistant architectural metals industrial corrugated stainless steel. Horizontal as well as vertical loads may be considered. Roof deck shall have a minimum yield strength of 33 000 psi and a maximum sheet length of 42 0. If such corrosion is found at the roof cuts the deck may be unsafe to even walk on and may require total deck replacement.

Corrosion of the steel be controlled and not allowed to affect the integrity and strength of the product. 2 01 steel roof deck a. The series of design manuals developed since 1939 have proven successful in their approach to steel deck design and corrosion protection. Steel roof deck shall extend over three or more spans.

1 in 1985 about three years after construction when several new penetrations were cut in the asphalt built up roof bur. Steel roof deck shall be 22 gauge galvanized steel profile to match existing. This exposed moderate to severe corrosion of the deck. 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.

James river steel inc. Corrosion resistant roof fasteners either stainless steel or coated are crucial. Steel vulcraft wheeling or. Steel roof deck shall be as manufactured by u s.

The deck is a structural panel that spans over roof joist or purlins to provide a flat. 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. Steel roof deck is the predominant structural component used in virtually all flat roofs.