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 Ð corrosion protection meets or exceeds FM 4470 corrosion standards |
Length: |
2 7/8 inches (full thread) |
Head: |
.425 inch diameter Ð 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 |
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