Instead of installing plywood sheathing, roofing paper and shingles, I put together a video shows how solar modules could be attached directly to the roof trusses.  

http://www.youtube.com/watch?v=nNT5QxBkyiY

Since you have to install a roof anyway, the labor cost of installing the solar modules is essentially zero.  Attaching the solar directly to the roof trusses also avoids the furture maintenance costs of having to remove solar modules that are mounted on top of three-tab shingles that need replacing every 15 or so years.

I picked Silicon Energy's solar modules because they are one of the few (only?) modules that are built to 4'x4' nominal dimensions.  They are also glass-on-glass moduels which makes them extremely strong and very durable. 

I do not have any financial interest in Silicon Energy.  The design I show is a theoretical design using an actual Silicon Energy module.  To my knowledge, Silicon Energy currently does not have a gap seal design that would be water tight and bolt directly to the roof truss like I show in the video.  However, I don't think it would be too hard for them to do.

Views: 68

Videos

  • Add Videos
  • View All

Latest Activity

Chris Woods added a discussion to the group Energy Auditing Equipment for Sale, Trade or to Purchase
Thumbnail

Minneapolis Blower Door Fan and Door frame $990 OBO

I have a used Minneapolis blower door fan (fan only, no controls or panel) and the blower door…See More
yesterday
Profile IconManuela L Heyn and Paul Nagel joined Home Energy Pros
yesterday
Bill Spohn replied to Eric Sperline's discussion Wanted: Energy Auditing Equipment for sale in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"If you choose to buy new, give TruTech at call at 1-888-224-3437 option 1"
yesterday
Home Energy Magazine's blog post was featured

The Legends of Home Performance

A project long in the making, we're happy to finally reveal some of our Legends of Home Performance…See More
yesterday
Quinn Korzeniecki replied to Larry R Waters's discussion BPI Anaylist
"Hi Larry, We're glad you're reaching out to hire some BPI folks! You can also submit…"
yesterday
Larry R Waters posted a discussion

BPI Anaylist

Industry leader in the north bay area California. Looking for experienced professionals and future…See More
yesterday
Larry R Waters joined Diane Chojnowski's group
Thumbnail

Job Board

This group is for posting jobs related to all aspects of the home performance industry including…See More
yesterday
John Nicholas replied to Jim Fowler's discussion TREAT modeling of mid-rise apartments low heating load
"So why is tenant behavior significantly different in this building?"
Friday

Home Energy Pros

Welcome to Home Energy Pros – the unique digital community by and for those who work in the home energy performance arena.

Home Energy Pros was founded by the developers of Home Energy Saver Pro (supported by the U.S. Department of Energy) and brought to you in partnership with Home Energy magazine.  Home Energy Pros is sponsored by the Better Buildings Residential Network. Please honor our Guidelines

© 2017   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service