OMG CR Base Sheet Fasteners are one-piece, precision formed from G-90 galvanized steel, coated with CR-10, and pre-assembled with a 2.75-in. diameter galvalume plate. These fasteners are available in two sizes and can be used to secure base sheets to poured lightweight insulating concrete, and on certain poured gypsum decks.
Features & Benefits
- CR Base Sheet Fasteners are packaged for easy handling on the roof.
- OMG Assembled CR Base Sheet Fasteners are FM and Miami-Dade County approved.
Surfaces must be dry and resonably smooth prior to roofing. For best performance, the fastener must always be installed perpendicular to the substrate.
CR 1.2 BSF - Designed for use on minimum 1.25-in. thick poured lightweight insulating concrete and some gypsum decks. A pull test is required to determine suitability.
CR 1.75 BSF - Designed for use on minimum 2-in. thick poured lightweight insulating concrete decks only. Not to be used on poured gypsum decks.
OMG Assembled CR Base Sheet Fasteners are FM approved and rated 1-150 with certain fastener, base sheet, and insulating concrete combinations. Consult the roofing system manufacturer for specific wind ratings.
NOTE: Prior to job start, contact roof cover manufacturer to determined the correct nailing pattern. On re-roofing applications, roof should be inspected and tested to determine pullout values.
Head Diameter: 1.125-in. x 1-in. (28.5mm x 25.4mm)
Plate Material: 2.75-in. diameter Galvalume
Leg Lengths: 1.2-in. & 1.75-in.
Coating: OMG’s CR-10 corrosion resistant coating which passes the corrosion requirements of FM Approval Standard 4470 and EAD 030351-00-0402.
CR Base Sheet Fastener
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