Installation for Composition Shingle Solar Roofs
Mounting feet are the primary component of a roof top solar installation.
The feet are installed by a licensed roofer on all of our retrofit solar installations.
The feet are mounted to house a solar rail which will then house the solar electric panels.
The feet allow 2' of over run on the ends and 4' to 6' for the entire row span.
Using standard roofing penetration waterproofing materials,
which includes "Henry's" and tacky tape.
Feeder Drill Holes
Once the rafters and the layout of the feet are determined we will drill feeder holes
to make bolting the feet to the rafter smooter, safer and stronger.
5/16" by 3" lag screws are used per mounnting foot.
Solar Rails Attach to Solar Mounts
The solar rails are laid along the solar mounts to check for distance.
The number of solar panels is calculated by width or height depending on if your installation is portrait or landscape.
For example, we consider the Mitsubishi Solar 185 watt panel to be 33" by 66", which is slightly bigger than their actual size to account for mounting parts.
The rails are then drilled above each solar mount and then attached with washer and bolt.
Solar Panels are Attached to the Rails
See more solar installation pictures here: