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flyboys3 01-03-2010 06:01 PM

gothic arched rafters
i am thinking of building a home with a gothic arched roof, and I cannot find any information on how to build the laminated rafters. very litte info on the net on this. can anyone provide any help at all. I have done my share of woodworking and built my share of sheds, garages and homes. I have used regular rafters many times but would love to see about building my own arched rafters.

tinner666 01-03-2010 07:57 PM

I helped build a Proa with very curved outriggers. We took straight 4x4 fir and re-sawed them all into 1/4 strips on my bandsaw. Made a mold with blocks on a frame with 3/4" plywood on top. Once we knew all the guiding blocks were in the right spots, we covered the area in saran wrap like plastic, then mixed west system epoxy, and glued it all back together.
I would have to find, scan, and e-mail pix of the process.

tinner666 01-03-2010 07:58 PM

Oh, they were 14' or 16' 4x4's.

Gary in WA 01-03-2010 10:19 PM

You may have seen these, I didn't spend too long searching.
Be safe, Gary

tinner666 01-04-2010 05:02 AM

I only looked at the first link. That's how we did it.

flyboys3 01-04-2010 04:42 PM

No I did not see some of them. that is what I am looking for. I looked for most of the day and found very little. What I would like also is a "how to" book or something simular for the arched roof construction. This just seems to have stood the test of time(barns).

tinner666 01-04-2010 06:45 PM

You're going to have to know the distance from wall to wall, outside measurement, of course. ( For the bird's mouth cut) You'll then need to know the thickness of your ridgeboard, if you're using one. You'll need to divide it's thickness by .50.

Then, you need to know how much overhang you'll want. Then, try a scale drawing, then a full sized mockup to see how it really looks.

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