Install Manual

ADDENDUM
Installation Instruction for Metal Roofing
18
Installation on a Metal Roofing
1. Requirement
Applicable to maximum 20 gage metal decking.
The roof should have sheathing (deck) board and the metal roofing
should be flat and flush against the sheathing board at least 4 1/4
inch (108mm) by 4 3/4 inch (120mm) area at the bracket mounting
location. The Roof Tech P.E. Letters are created for a minimum 7/16”
OSB with 2x4 rafters 24 in o.c.