Quick Mount PV SolarHook Installation Guide
Table Of Contents
GETTING STARTED
INSTALLATION GUIDE
1
Use Figure 1 to select a lag bolt embedment depth to satisfy your Uplift Point
Load Force (lbs), requirements. It is the installer’s responsibility to verify that
the substructure and attachment method is strong enough to support the
maximum point loads calculated.
NOTES:
(1) Thread must be embedded in the side grain of a rafter or other structural
member integral with the building structure.
(2) Lag bolts must be located in the middle third of the structural member.
(3) This table does not include shear capacities. If necessary, contact a local
engineer to specify lag bolt size with regard to shear forces.
(4) Install lag bolts with head and washer flush to surface (no gap). Do not
over torque.
(5) Withdrawal design values for lag screw connections shall be multiplied by
applicable adjustment factors if necessary. See table 10.3 in the American
Wood Council NDS for Wood Construction
ROOF HOOK CAPACITIES AND ENGINEERING
Refer to engineering report tables for tested ultimate loads. Refer to local AHJ
to determine the correct code (ASCE 7-05 or 7-10), wind speed and snow
load. It is the responsibility of the installer to ensure these mounting
attachments are appropriate for the application. Please contact your 3
rd
party engineer for more information.
ENGINEERING GUIDE LIMITATIONS
• Flush roof installations only
• Roof slope must be 0-45 degrees (0/12 - 12/12 pitch)
• Installation must have at least 4 modules grouped together
• Module dimensions must be less than 42”x67"
• Surrounding ground area must not slope more than 10 degrees
• Location must fall into Exposure Category B or C
• Building height must be less than or equal to 30’-0"
Please refer to www.unirac.com in the Technical Support section for the
Solarmount D&E guide which should be used in installations that do not
comply with the limitations above.