Solar Mounting Made Simple
R
Light Rail
Installation Manual
Page 1
2013 v1.3
Introduction
The IronRidge Light Rail System is a flexible and straightforward roof mounting solution for a wide variety of solar photovoltaic (PV)
needs. Due to its modular design, it can easily handle a wide variety of panel sizes and quantities.
Installer Responsibility
The installer is solely responsible for:
i. Complying with all applicable local or national building codes, including any that may supersede this manual;
ii. Ensuring that IronRidge and other products are appropriate for the particular installation and the installation environment;
iii. Ensuring that all structural support members, including the roof, its rafters, and connections, can support the array under all
code level loading conditions;
iv. Using only IronRidge parts and installer-supplied parts as specified by IronRidge. Substitution parts may void the warranty;
v. Ensuring that anchoring devices including lag screws have adequate pullout strength and shear capacities as installed;
vi. Maintaining the waterproof integrity of the structural support or roof, including selection of appropriate flashing;
vii. Ensuring safe installation of all electrical aspects of the PV array; and
viii. Ensuring that PV module is UL or CE listed and verification of PV Module’s capacity to support the loads associated with the
given array; and
ix. Ensuring correct and appropriate design parameters are used in determining the design loading used for the specific
installation. Parameters, such as snow loading, wind speed, exposure and topographic factor should be confirmed with the
local building official or a licensed professional engineer.
Customer Support
IronRidge makes every effort to ensure your mounting kit is easy to install. If you need assistance at any point with your installation or
have suggestions on how we can improve your experience, call IronRidge customer support: (707) 459-9523
Tools Required For Assembly
Hex Head Size
Component
5/16”
#12 Self Drilling/tapping screws
7/16”
1/4 cap-end screws and bolts
9/16”
3/8 cap-end screws and bolts
Wrenches are required to assemble the IronRidge Light Rail System. An open-end wrench, box-end wrench, or socket drive with
sockets will suffice. The sockets will need to support the following size hex heads:
Torque Values For Dry Bolts
Bolt
Size
Required
Torque
Value
1/4-20
120 in-lbs. (dry), 100 in-lbs. (wet), 65 in-lbs. on End Clamps (wet or dry)
3/8-16
236
in-lbs.
Use the following torque values in this assembly.
