Sorry if this went through twice; the list scrubbed my attachment and bounced the message.<br>--------------------------<br>I have an ancient (1999) spec sheet from ITWBuildex (contact me offlist for a copy) for the #14 Roofgrip
screws that we used to get from DPW to use on their Easy Feet. It lists plywood thicknesses and associated
pull-out strengths (3/8" = 326 lbs, 1/2" = 436 lbs, 3/4" = 728 lbs.
There are probably a few fastener manufacturers that have a screw rated
for pull-out on plywood, it's just a matter of tracking that information
down. Maybe a good fastener store could help find some, like Harrison
& Bonini in San Francisco. Or keep trying to get an updated spec
from DPW, or at least a current
product name they suppply if it is not Roofgrip. Try Jeff Randall
(<a href="mailto:randallj@directpower.com" target="_blank">randallj@directpower.com</a>);
you need to talk to one
of their engineers to get anything besides basic pricing and
availability. <br>
<br>BTW, those screws are rated for plywood only, not OSB.<br><br>One
last thought: now that you can find a pull-out number, you might want to
check the point loading per area with the foam on the roof. For
example, if each point load is 40 lbs and you use a post with a 4" x 4"
base, then the distributed point load is 2.5 psi. Doesn't sound like
much, but could be worth checking. A while back we had DPW make us some
custom Easy Posts with large bases to decrease that point load off the
foam roof (solar thermal, a little heavier, on the roof of a foam guy's
house so he knew his product and asked us for this specifically).<br>
<p class="MsoNormal"><br></p><p class="MsoNormal">-Phil<br><span style="font-size: 10pt;"></span></p><p class="MsoNormal"><span style="font-size: 10pt;"></span></p><p class="MsoNormal"><span style="font-size: 10pt;">Phil Boutelle</span></p>
<p class="MsoNormal"><span style="font-size: 10pt;">Project Engineer<br>
NABCEP Certified Solar PV Installer <sup>TM</sup><br>
Real Goods Solar, Inc.</span></p><span style="font-size: 10pt;"><a href="http://www.iesolar.com/" target="_blank">www.RealGoodsSolar.com</a></span>
<br><br><div class="gmail_quote">On Tue, Jul 20, 2010 at 12:38 AM, Philip Boutelle <span dir="ltr"><<a href="mailto:philboutelle@gmail.com">philboutelle@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
I have an ancient (1999) spec sheet from ITWBuildex (attached here, don't know if it will reach the entire list or not) for the #14 Roofgrip screws that we used to get from DPW to use on their Easy Feet. If you can't see the spec sheet, it lists plywood thicknesses and associated pull-out strengths (3/8" = 326 lbs, 1/2" = 436 lbs, 3/4" = 728 lbs. There are probably a few fastener manufacturers that have a screw rated for pull-out on plywood, it's just a matter of tracking that information down. Maybe a good fastener store could help find some, like Harrison & Bonini in San Francisco. Or keep trying to get an updated spec from DPW, or at least a current
product name they suppply if it is not Roofgrip. Try Jeff Randall
(<a href="mailto:randallj@directpower.com" target="_blank">randallj@directpower.com</a>); you need to talk to one
of their engineers to get anything besides basic pricing and availability. <br>
<br>BTW, those screws are rated for plywood only, not OSB.<br><br>One last thought: now that you can find a pull-out number, you might want to check the point loading per area with the foam on the roof. For example, if each point load is 40 lbs and you use a post with a 4" x 4" base, then the distributed point load is 2.5 psi. Doesn't sound like much, but could be worth checking. A while back we had DPW make us some custom Easy Posts with large bases to decrease that point load off the foam roof (solar thermal, a little heavier, on the roof of a foam guy's house so he knew his product and asked us for this specifically).<br>
<p class="MsoNormal"><br></p><p class="MsoNormal">-Phil<br><span style="font-size: 10pt;"></span></p><p class="MsoNormal"><span style="font-size: 10pt;"><br></span></p><p class="MsoNormal"><span style="font-size: 10pt;">Phil Boutelle</span></p>
<p class="MsoNormal"><span style="font-size: 10pt;">Project Engineer<br>
NABCEP Certified Solar PV Installer <sup>TM</sup><br>
Real Goods Solar, Inc.</span></p><span style="font-size: 10pt;"><a href="http://www.iesolar.com/" target="_blank">www.RealGoodsSolar.com</a></span>
<br><div><div></div><div class="h5"><br><div class="gmail_quote">On Mon, Jul 19, 2010 at 10:06 PM, Nick Soleil <span dir="ltr"><<a href="mailto:nicksoleilsolar@yahoo.com" target="_blank">nicksoleilsolar@yahoo.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div><div style="font-family: arial,helvetica,sans-serif; font-size: 12pt;"> 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.<br>
<div> </div>Nick Soleil<br>Project Manager<br>Advanced Alternative Energy Solutions, LLC<br>PO Box 657<br>Petaluma, CA 94953<br>Cell: 707-321-2937<br>Office: 707-789-9537<br>Fax: 707-769-9037<div><br></div><div style="font-family: arial,helvetica,sans-serif; font-size: 12pt;">
<br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><font face="Tahoma" size="2"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> benn kilburn <<a href="mailto:benn@daystarsolar.ca" target="_blank">benn@daystarsolar.ca</a>><br>
<b><span style="font-weight: bold;">To:</span></b> Wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>><br><b><span style="font-weight: bold;">Sent:</span></b> Mon, July 19, 2010 9:34:32 PM<br>
<b><span style="font-weight: bold;">Subject:</span></b> Re: [RE-wrenches] attaching to roof decking - Foam Insulation Install<br></font><div><div></div><div><br>
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.<div>does anyone care to comment on the fact that this mounting method only attaches to the roof decking and not the rafters? </div>
<div><br></div><div>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. </div>
<div>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!</div><div>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)???</div><div><br></div><div>cheers,</div><div>benn<br><br><span style="color: rgb(0, 32, 96);">DayStar Renewable Energy Inc. </span><div><div><a href="mailto:benn@daystarsolar.ca" target="_blank">benn@daystarsolar.ca</a></div>
<div>780-906-7807 </div><div>HAVE A SUNNY DAY
</div><div><br></div></div><br><br><hr>From: <a href="mailto:frenergy@psln.com" target="_blank">frenergy@psln.com</a><br>To: <a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a><br>
Date: Mon, 19 Jul 2010 16:32:23 -0700<br>Subject: Re: [RE-wrenches] Foam Insulation Install<br><br>
<div><font face="Lucida Sans">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.</font></div>
<div> </div>
<div><font face="Lucida Sans">Bill</font></div>
<div> </div>
<div>Feather River Solar Electric<br>4291 Nelson St.<br>Taylorsville, CA
95983<br>530-284-7849/6544 fax</div>
<div> </div>
<div>----- Original Message ----- </div>
<blockquote style="padding-right: 0px; padding-left: 5px; margin-left: 5px; border-left: 2px solid rgb(0, 0, 0); margin-right: 0px;">
<div style="background: none repeat scroll 0% 0% rgb(228, 228, 228); font: 10pt arial;"><b>From:</b>
<a rel="nofollow" title="holtek@sbcglobal.net" href="mailto:holtek@sbcglobal.net" target="_blank">holtek@sbcglobal.net</a> </div>
<div style="font: 10pt arial;"><b>To:</b> <a rel="nofollow" title="re-wrenches@lists.re-wrenches.org" href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">RE-wrenches</a> </div>
<div style="font: 10pt arial;"><b>Sent:</b> Monday, July 19, 2010 12:24
PM</div>
<div style="font: 10pt arial;"><b>Subject:</b> Re: [RE-wrenches] Foam
Insulation Install</div>
<div><br></div>
<div>Antony,</div>
<div>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 <i><b>talk</b></i> to someone with good product knowledge
that will take the time to answer stupid questions. </div>
<div> </div>
<div>Holt E. Kelly<br>Holtek Fireplace & Solar Products<br>500 Jewell
Dr.<br>Waco TX. 76712<br>254-751-9111<br><a rel="nofollow" href="http://www.holteksolar.com" target="_blank">www.holteksolar.com</a><br></div>
<blockquote style="padding-right: 0px; padding-left: 5px; margin-left: 5px; border-left: 2px solid rgb(0, 0, 0); margin-right: 0px;">
<div style="font: 10pt arial;">----- Original Message ----- </div>
<div style="background: none repeat scroll 0% 0% rgb(228, 228, 228); font: 10pt arial;"><b>From:</b>
<a rel="nofollow" title="tony@appliedsolarenergy.com" href="mailto:tony@appliedsolarenergy.com" target="_blank">Antony Tersol</a> </div>
<div style="font: 10pt arial;"><b>To:</b> <a rel="nofollow" title="re-wrenches@lists.re-wrenches.org" href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>
</div>
<div style="font: 10pt arial;"><b>Sent:</b> Monday, July 19, 2010 11:33
AM</div>
<div style="font: 10pt arial;"><b>Subject:</b> [RE-wrenches] Foam Insulation
Install</div>
<div><br></div>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.
<div><br></div>
<div>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.
<div><br></div>
<div>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. </div>
<div><br></div>
<div>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. <br clear="all"><br>
<div><span><a href="http://www.ecofastensolar.com/our-products/eco-fasten" target="_blank">http://www.ecofastensolar.com/our-products/eco-fasten</a></span></div>
<div><br></div>
<div><a rel="nofollow" href="http://www.ecofastensolar.com/our-products/eco-fasten" target="_blank"></a>Their
website is pretty comprehensive, and includes leak and load tests and
building code info. Other cool mounting products too.<br>-- <br>Antony
Tersol<br>Solex / Applied Solar Energy<br>831-333-1919<br>
<div><br></div>
<div>You wrote:</div>
<div><br></div>
<div><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;">For
residential install with the spray foam insulation</span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;"><br></span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;"><br>
</span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;">Underside
of deck has 12"+ of foam.....no way to accurately locate rafter</span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;"><br></span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;">there.....hammer
and ear also out of the question...........don't think any</span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;"><br></span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;">of
the stud finders will work....been told that peeling back shingles
to</span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;"><br></span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;">locate
rafter is only accurate way.......would like to avoid that if</span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;"><br></span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;">possible..........any
suggestions?</span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;"><br></span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;"><br></span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;">Holt
E. Kelly</span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;"><br></span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;">Holtek
Fireplace & Solar Products</span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;"><br></span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;">500
Jewell Dr.</span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;"><br></span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;">Waco
TX. 76712</span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;"><br></span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;">254-751-9111</span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;"><br>
</span><span style="font-size: 13px; font-family: arial,sans-serif; border-collapse: collapse;"><a rel="nofollow" style="color: rgb(42, 93, 176);" href="http://www.holteksolar.com/" target="_blank">www.holteksolar.com</a></span></div>
</div></div></div>
<br><hr>
<br>_______________________________________________<br>List sponsored by
Home Power magazine<br><br>List Address:
<a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank">RE-wrenches@lists.re-wrenches.org</a><br><br>Options &
settings:<br><span><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a></span><br><br><span>List-Archive:
<a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a></span><br><br>List
rules & etiquette:<br><a href="http://www.re-wrenches.org/etiquette.htm" target="_blank">www.re-wrenches.org/etiquette.htm</a><br><br>Check out
participant bios:<br><a href="http://www.members.re-wrenches.org" target="_blank">www.members.re-wrenches.org</a><br><br></blockquote>
<br><hr>
<br>_______________________________________________<br>List sponsored by
Home Power magazine<br><br>List Address:
<a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank">RE-wrenches@lists.re-wrenches.org</a><br><br>Options &
settings:<br><span><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a></span><br><br><span>List-Archive:
<a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a></span><br><br>List
rules & etiquette:<br><a href="http://www.re-wrenches.org/etiquette.htm" target="_blank">www.re-wrenches.org/etiquette.htm</a><br><br>Check out
participant bios:<br><span><a href="http://www.members.re-wrenches.org" target="_blank">www.members.re-wrenches.org</a></span><br><br>
<br><hr>
<br><br>No virus found in this incoming message.<br>Checked by AVG -
<a href="http://www.avg.com" target="_blank">www.avg.com</a> <br>Version: 8.5.441 / Virus Database: 271.1.1/3015 - Release
Date: 07/19/10 06:36:00<br></blockquote></div> <br><hr>Enter for a chance to get your town photo on <a href="http://Bing.ca" target="_blank">Bing.ca</a>! <a rel="nofollow" href="http://go.microsoft.com/?linkid=9734379" target="_blank">Submit a Photo Now! </a></div>
</div></div></div>
</div><br>
</div><br>_______________________________________________<br>
List sponsored by Home Power magazine<br>
<br>
List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank">RE-wrenches@lists.re-wrenches.org</a><br>
<br>
Options & settings:<br>
<a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br>
<br>
List-Archive: <a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br>
<br>
List rules & etiquette:<br>
<a href="http://www.re-wrenches.org/etiquette.htm" target="_blank">www.re-wrenches.org/etiquette.htm</a><br>
<br>
Check out participant bios:<br>
<a href="http://www.members.re-wrenches.org" target="_blank">www.members.re-wrenches.org</a><br>
<br>
<br></blockquote></div><br>
</div></div></blockquote></div><br>