Jesse, I can't picture how you will use the flashing and EMT as a guide? 2x6 tongue and groove? So is it laid flat (interconnecting the T&G) or is it on edge like a truss?
Either way, if you can establish a reference point from inside to the roof, then from the inside (if accessible) accurately measure the distances you want to hit the 'beams' (are these the 2x6s you mentioned?) and either record the measurements or mark them on a length of something (EMT, mounting rail, make marks on your tape) and transfer it to the roof. Make sure to note north/south on each end of your measurement 'template' while inside so it doesn't get switched around when you get on the roof. Also it might be good to confirm the measurements for each rail/row to account for any variances from row to row. Hope this helps? benn Sent from a 'smart' phone, with touch screen keys. Please excuse shortcuts and typos. On 2012-12-11, at 7:00 PM, Jesse Dahl <dahlso...@gmail.com> 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. > > 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 > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
