[RE-wrenches] attaching to roof decking - Foam Insulation Install
Nick Soleil
nicksoleilsolar at yahoo.com
Mon Jul 19 22:06:17 PDT 2010
It is important that the 'Easy Feet' or similar product is installed on a
roof that meets certain criteria, as per the manufacturer. Other comparable
products require ~1/2" (15/32") plywood or particle roof sheathing which is
installed with a minimum specified nail pattern. The calculations would be
affected by the spacing between the roof and the modules, and the amount of air
that can get under the modules. If the panels are flush to the roof, then there
is little or no uplift.
Nick Soleil
Project Manager
Advanced Alternative Energy Solutions, LLC
PO Box 657
Petaluma, CA 94953
Cell: 707-321-2937
Office: 707-789-9537
Fax: 707-769-9037
________________________________
From: benn kilburn <benn at daystarsolar.ca>
To: Wrenches <re-wrenches at lists.re-wrenches.org>
Sent: Mon, July 19, 2010 9:34:32 PM
Subject: Re: [RE-wrenches] attaching to roof decking - Foam Insulation Install
after a few requests, i have not been getting any feedback from Direct Power
regarding pull out specs for their 'easy feet', which i need for my engineer to
be able to give me the go-ahead to use them.
does anyone care to comment on the fact that this mounting method only attaches
to the roof decking and not the rafters?
i have always been under the impression that if you only attach your racking to
the roof decking, it (the decking) could 'rip right off the roof' in that worst
case scenario wind storm! but by anchoring to the trusses, the whole roof
structure would/should withstand the wind load.
or maybe i was just under the wrong impression and the spiel was that the
decking would not hold the screws and the screws would pull out!
so am i to understand that by using several (of the right size) screws at each
anchor point, the decking (if adequate) will be able to support an array (even
if tilted up to 60 deg)???
cheers,
benn
DayStar Renewable Energy Inc.
benn at daystarsolar.ca
780-906-7807
HAVE A SUNNY DAY
________________________________
From: frenergy at psln.com
To: re-wrenches at lists.re-wrenches.org
Date: Mon, 19 Jul 2010 16:32:23 -0700
Subject: Re: [RE-wrenches] Foam Insulation Install
I have also had a great experience using "Easy Feet" from Direct Power. You
use four of their screws per foot and Jeff Randall there can give you pull out
specs in roof decking, as I recall they match or exceed that of the Lag/rafter
combo.
Bill
Feather River Solar Electric
4291 Nelson St.
Taylorsville, CA 95983
530-284-7849/6544 fax
----- Original Message -----
From: holtek at sbcglobal.net
>To: RE-wrenches
>Sent: Monday, July 19, 2010 12:24 PM
>Subject: Re: [RE-wrenches] Foam Insulation Install
>
>
>Antony,
>Right on! The Eco-fasten will solve the issue - it's been pull-out tested
>sans-rafter penetration. Have bought the eco-green fasteners from them, will
>again. As far as dealing with them - it's a great pleasure to be able to
>talk to someone with good product knowledge that will take the time to answer
>stupid questions.
>
>
>Holt E. Kelly
>Holtek Fireplace & Solar Products
>500 Jewell Dr.
>Waco TX. 76712
>254-751-9111
>www.holteksolar.com
>
>----- Original Message -----
>>From: Antony Tersol
>>To: re-wrenches at lists.re-wrenches.org
>>Sent: Monday, July 19, 2010 11:33 AM
>>Subject: [RE-wrenches] Foam Insulation Install
>>
>>Have you looked at EcoFasten mounting. They have a mount that uses 8
>>screws per attachment, so can theoretically hold without going into the
>>rafters. Then could use a large flashing over that to integrate with the
>>shingles.
>>
>>
>>
>>I think they're an offshoot of AlpenSnowguards in Vermont. We started
>>working with Alpen to source S5 clamps several years ago, and have found
>>them great to work with.
>>
>>
>>
>>We're a West coast company - there were lots of other distributors closer,
>>but Alpen got and kept our business. It's kind of funny - when I call
>>them, I feel like I'm talking with someone in one of those old hardware
>>stores with everything you need right there in bins, and when I call the
>>other guys it seems like someone in a sales office who never handles the
>>product.
>>
>>
>>The EcoFasten crew is similarly helpful, and they have some well thought
>>out products. The name I have in my rollodex is Chris Sterns, at
>>877-859-3947.
>>
>>
>>http://www.ecofastensolar.com/our-products/eco-fasten
>>
>>
>>Their website is pretty comprehensive, and includes leak and load tests and
>>building code info. Other cool mounting products too.
>>--
>>Antony Tersol
>>Solex / Applied Solar Energy
>>831-333-1919
>>
>>
>>
>>You wrote:
>>
>>
>>For residential install with the spray foam insulation
>>
>>Underside of deck has 12"+ of foam.....no way to accurately locate rafter
>>there.....hammer and ear also out of the question...........don't think
>any
>>of the stud finders will work....been told that peeling back shingles
>>to
>>locate rafter is only accurate way.......would like to avoid that if
>>possible..........any suggestions?
>>
>>Holt E. Kelly
>>Holtek Fireplace & Solar Products
>>500 Jewell Dr.
>>Waco TX. 76712
>>254-751-9111
>>www.holteksolar.com
>>________________________________
>>_______________________________________________
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