[RE-wrenches] L feet no flashing in shingle roof

David Brearley david.brearley at solarprofessional.com
Wed Jul 4 09:11:16 PDT 2012


In some cases, you can install blocking to get up on the ridge consistently. One alternative to hangar bolts is to use corrugated mounting bridges from DPW Solar or something similar from another company.

Sorry I can't link to the PDF. Google: "corrugated mounting bridges"

Since exposed-fastener metal roofs already have a bunch of holes in them, you're not voiding the roof warranty by punching more holes in the ridge. (I don't think these roofs even meet the NRCA definition of a "roof assembly" because of the exposed penetrations.) Penetrations in the valleys on a roof are problematic for obvious reasons.


On Jul 4, 2012, at 6:01 AM, Chris Mason wrote:

> All of this refers to shingle roofs, which we don't see much of. We mostly deal with concrete and corrugated steel/galvalume, the latter being a nightmare. Does anyone have good ideas for dealing with corrugated? There's no way to flash it, the blocks are fine when you hit a beam on the ridge but half the time your penetration has to be on the trough of the corrugated steel.
> Other than lots of goop, I don't know how else to seal it.
> _______________________________________________
> List sponsored by Home Power magazine
> 
> List Address: RE-wrenches at lists.re-wrenches.org
> 
> Options & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
> 
> List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
> 
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
> 
> Check out participant bios:
> www.members.re-wrenches.org
> 




More information about the RE-wrenches mailing list