[RE-wrenches] Pilot Hole Template

Wed Dec 12 11:38:16 PST 2012

Hi Jesse,

We just finished a similar roof mount project but had the good fortune to be going into 6x14 beams at “ 48” o.c. “. I put the on center dimension in quotes loosely, and spent a couple hours prior to drilling the first hole checking layout of the beams, directly under where we’d be drilling. The ceiling rafters varied in layout an inch to 8” so this paid off!!!

We used a 12” x 3/16” pilot bit, for our 8” Simpson SDS galv lags. I eyeballed the angle into the beam, approx 10°, as we had 4 bolts in each 1.5” pipe flange base to land into the beams. The trick is having the 8” lag bolt follow the hole into the 2x6 pine decking and beam. This wasn’t as hard to do as we first thought it would be, and didn’t miss a one.

Hitting a 3x10 is going to be trickier, and your jig should help immensely. 

Sincerely,

Chris Worcester

Solar Wind Works
NABCEP Certified PV Installer
Phone: 530-582-4503
Fax: 530-582-4603
www.solarwindworks.com <http://www.solarwindworks.com/> 
chris at solarwindworks.com
"Proven Energy Solutions"

From: re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Jesse Dahl
Sent: Wednesday, December 12, 2012 7:54 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Pilot Hole Template

Since this job was a spec job and the materials are already here, I need to use the quick mount, so.  I took a quick mount, inserted a 1/2" EMT coupling (after some filing) and stuck a 8" piece of 1/2" EMT in the coupling Nd tightened it down. Checked it with my square to ensure it is coming out of the flashing square to the world.  I haven't drilled a hole yet, but will update.  

Jesse

Sent from my iPhone

On Dec 12, 2012, at 8:03 AM, Jason Szumlanski <jason at fafcosolar.com> wrote:

We just completed a job with Eco-65's. It took about 12 man-days to install 200 of the base plates and L-Feet on a flat roof with wood blocks on a metal deck with about 3" total from the rolled roof surface to the metal deck. We custom-cut patches to go over the metal flashing supplied with the base plate. 

Email me privately if you would like some pictures.

The materials are not cheap, but the installation was quite smooth and did not require getting into the drop-ceiling or displacing office workers below. We used 6" OMG extra heavy duty fasteners (part no. XHD006B).

Jason Szumlanski 

Fafco Solar 

On Wed, Dec 12, 2012 at 8:52 AM, Will White <William.White at realgoods.com> wrote:

Have you looked at EcoFastens Eco-65 plate?  We used them on a roof similar to what you’ve got and went right into the 2x6 so we didn’t have to go into the structural members.  They’ve got a flashing that will work with asphalt roofs.

Just make sure you get the right length fasteners so it doesn’t go through the finished ceiling inside.

Thanks,

Will

__________________________________________________________________________________________

Will White

Regional Field Operations Manager – New England

Real Goods Solar

64 Main St.

Montpelier, VT 05602

Tel: (802) 223-7804 <tel:%28802%29%20223-7804> 

Cell: (802) 234-3167 <tel:%28802%29%20234-3167> 

www.realgoodssolar.com <http://www.realgoodssolar.com/> 

From: re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Jesse Dahl
Sent: Tuesday, December 11, 2012 9:01 PM
To: RE-wrenches
Subject: [RE-wrenches] Pilot Hole Template

Hello,

The roof I'm currently working on is not a typical roof.  The construction is as follows:

2"x6" tongue and groove exposed inside, with 4 inches of foam (blue board) and on top of that 3/4" plywood with asphalt shingles on top of that.

I'd like to make a template to ensure that my pilot bit doesn't wander when I'm going through the blue board.  If I miss the beams inside, the hole or the lag would be exposed.  

Anybody run across this? Ideas?  I thought of maybe using a qucikmount flashing, with a short section of EMT attached to help guide the bit....

Thanks!

Jesse

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