[RE-wrenches] Pilot Hole Template

[Jesse Dahl]

Benn,

If you were to look at the roof from the side, it would look like this: 2x6 tounge and grove (laid flat and exposed inside) foam board, 3/4 plywood, shingles.  I guess I'm looking for a way to ensure my bit goes in at the right angle, perpendicular to the beams inside. 

William,  Im not sure.  I was hired by a large electrical contractor to oversee this project.  The job required NABCEP and they didn't have anyone certified. These are all things that were not thought about before hand. My hope is that the 3/4" plywood will help, blue board is very hard to crush on its face, so I can only hope it holds, if not, I don't know what they will do.....  

Jesse

Sent from my iPhone

On Dec 12, 2012, at 12:02 AM, William Miller <william at millersolar.com> wrote:

> Jesse:
> 
> How are you going to avoid crushing the foam when you tighten your fasteners?
> 
> William Miller
> 
> 
> At 06:00 PM 12/11/2012, you wrote:
>> 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.
> 
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