Dear Wrenches,
Can anyone direct me to a source for stainless hanger bolts without going
through a solar distributor? I remember around 15 years ago a supplier up in
the Seattle area, but now cannot find them. Any help is appreciated.
Cheers,Jerry Caldwell
On Tuesday, May 3, 2016 6:43 AM, August Goers <[email protected]> wrote:
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{}-->Bill – So it sounds like you have a corrugated metal roof installed by a
handyman over an existing comp shingle roof? It might be wise to get your
building department planchecker or inspector involved at this point since it
sounds like you have a potential code violation. Adding PV to an already shotty
roof setup will just compound problems down the line. That said, if you can’t
trust the purlins (or what I think you are referring to as 1” x 4” stringers)
to be structural members, then I suppose you could install long hanger bolts
all the way through the metal roof and into the rafters? You could use a
double jam-nut setup to mount your racking. Just an idea, but it is not an
ideal situation. Good luck out there! Best, August From: RE-wrenches
[mailto:[email protected]] On Behalf Of frenergy
Sent: Saturday, April 30, 2016 7:47 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Goofy roofing Benn, August, etc Sorry for
omitting a somewhat crucial detail....below these stringers it is a "standard"
residential stacked roof with 2X6 rafters on 16" centers with 1/2 " plywood
deck. No purlins. I appreciate the feedback/good ideas.BillFeather River Solar
Electric On 4/29/2016 3:28 PM, August Goers wrote:
Benn, We’ve done it several ways including putting four 14 x 1.5” TYPE 17
screws per attachment point through the metal and into the 1” x wood purlin.
The key is that the load path all the way down needs to be capable of handling
the worst case loads. So we had to check that too. Some racking manufactures
such as Unirac have online calculators to give point loads. Best, August From:
RE-wrenches [mailto:[email protected]] On Behalf Of
Benn Kilburn
Sent: Friday, April 29, 2016 2:17 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Goofy roofing August, et al;If the purlins are only
1"x4" or 1"x6" or....1"x anything, are you only relying on the 1" purlin as the
attachment point or are you hitting the vertical trusses below the purlins? We
are working on a corrugated roof right now and using a Schletter roof bracket.
The name of it escapes me at the moment. Maybe FixT? We are attaching to
purlins which are 2"x6". I wouldn't think 1"x anything would provide enough
pull-out?Benn KilburnSkyFire Energy Inc. 780-906-7807
On Apr 29, 2016, at 9:09 AM, August Goers <[email protected]> wrote:
Hi Bill, It sounds like you’re talking about a purlin type setup – 4’ sounds a
little far apart but I guess that’s what you have to deal with. If you have a
corrugated metal roof, we’ve used S-5 CurruBrackets screwed through the metal
and into the purlins and then either run the solar rail up and down the roof or
install a sub-rack system (with strut or angle aluminum) perpendicular to your
solar rail. Best, August From: RE-wrenches
[mailto:[email protected]] On Behalf Of frenergy
Sent: Friday, April 29, 2016 6:55 AM
To: RE-wrenches
Subject: [RE-wrenches] Goofy roofing Recently, a customer had a metal roof (not
standing seam) installed by a "handyman". Pretty clean installation however
for some reason he ran 1X6 stringers across the roof on the 1/2" plywood deck
spaced about every 4 feet (as you go from ridge to eaves). Of course the
roofing screws are at the stringers. I'm sure he had a great reason for doing
so. So now I have been asked to install an array on this roof. You can feel
how "soft" the roof is as you walk on it of course because you are walking on
air-below-metal for most of the roof. Stringer locations don't jive with
possible feet/post locations for rail. I'm usually pretty good at problem
solving but I'm accepting ideas.BillFeather River Solar Electric
Bill Battagin, Owner4291 Nelson St.Taylorsville, CA 95983530.284.7849CA Lic
874049www.frenergy.net
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-- Feather River Solar Electric Bill Battagin, Owner4291 Nelson
St.Taylorsville, CA 95983530.284.7849CA Lic
874049www.frenergy.net_______________________________________________
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