Screws and Plates Data Sheet

DESCRIPTION:
RUBBERALL® Screws and Plates are intended for attaching insulation board to the roof deck prior installation of the membrane. Proper installation is important to prevent wind up-lift.

APPLICATION:
Approved insulation boards must be secured by screws and plates in the patterns as outlined in the RUBBERALL® Installation Manual. Coverage should be one screw and plate every two sq. ft. for insulation board around the perimeter of the roof and one screw and plate every four sq. ft. for the remainder of the roof deck.

TYPICAL PHYSICAL PROPERTIES:

Screws

Material:

Black coated steel screws corrosion protection meets or exceeds FM 4470 corrosion standards

Length:

2 7/8 inches (full thread)

Head:

.425 inch diameter Phillips Truss Head with #3 recess

Threads:

15 _ double lead threads per inch

Plates

Material:

26 gauge Galvalume® steel

Width:

3 inch diameter; +/- 0.06 inch

Testing:

Meets or exceeds Factory Mutual I-60 or I-90 wind up lift specifications when properly installed on most insulation boards.

Thickness:

0.13 inch

Center Hole:

.25 in. diameter