Firestall Roof Decking - page 3

A.

Apply metal angle or wood nailer to metal C joists at all eave and rake edges.

B.

Follow a, b, c, d, e, & f under "Attachment to Steel Bar Joist or I-beams" using appropriate corrosion resistant self drilling fasteners suitable for use with gauge of C- Joist. Do not pre-drill C-Joist.

a.

Apply wood nailers of same thickness as Firestall Roof Deck at all eave and rake edges.

b.

Starting at low or outside edge of the roof, place the panel on the rafters, tongue pointing to ridge, and nail 6" o.c. to each rafter location (5 nails per rafter). Use common galvanized nails of sufficient length to penetrate thru the Firestall Roof Deck and a minimum of 1" into wood framing. Butt ends of panels must have a minimum of 3/4" bearing on framing.

c.

Place subsequent panels to fit over the exposed tongue. Drive T&G edges snugly. Place panels in straight alignment and at right angles to framing with all butt joints staggered. Leave 1/8" space between all butt joints.

d.

Where openings larger than 8" in diameter occur in panels, adequate structural support must be provided for all edges.

e.

All ends of panels shall be securely nailed to rafters.

f.

When heavy materials or concentrated loads must be placed upon, or transported over, installed Firestall Roof Deck panels, deck planking or other suitable material shall be placed to distribute weight.

g.

After Firestall hoof Deck panels are installed, cover immediately with roofing felt and finish roofing.

A.

Apply wood nailers of the same thickness as Firestall Roof Decking to surface of decking at all eves and rake edges of roof to provide starter strips and nailer for trim and facia.

B.

Starting at low or outside edge of roof, place panels on the steel deck running perpendicular to the flutes. Make sure panel ends fall on top flange between ribs.

C.

Mechanically fasten Firestall Roof Deck in place using FM approved Galvanized Roof Insulation fasteners (without plates) at a rate of 11 screws per panel. See fastening pattern below. Screws must be of sufficient length to penetrate structural deck at least 3/4". Hold screw back a minimum of 3/4" from panel edges.

D.

Place subsequent panels to fit over the exposed tongue. Drive tongue and groove edges together tightly, leave 1/8" space and stagger all joints at square edge of panels. For runs over 50" leave 1/2" expansion joint. Leave 3/8" space form all wood blocking or nailers.

E.

As Firestall Panels are installed cover immediately with roofing felt and finished roofing.