The Davey 11 Sided Turret Roof Cap Raised & Spiked Corners w/Gwain Finial
Oceanside, Oregon (8/08)

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Updated 9-14-2008

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This is a copper turret roof peak cap made for Geoff Davey in Oceanside, Oregon for their new addition observation room they just had built onto their ocean front property. It was designed to have 12 sides on this turret roof, but the builder decided to combine 2 sides into one where it conjoins into the house, so this roof cap needed to be built with 10 equal sides and one 2X wider side.

This shows the the pattern drawn and cut out for the base section. I was able to form 7 complete sides in one piece and the other overlapping 4 sided back section in the other piece.

This shows the base section bent into shape with raised spiked corners for a dynamic look and also adds strength incase of an impact from falling branches flying through the air in a wind storm. I had attached it to the back 4 sided piece.

I had left the center section out of the base since it would be too hard to make all these 33 bends on such a large piece up to the very center, so I added this wood block to hold the bottom of the support pipe for the finial mount. It is held in place with stainless steel screws.

I used some clear caulk over these seams and screws to seal it and covered the caulk with this black gaffers tape to help keep the caulk sealed from oxygen to increase it's life span. The photo below right shows this from underneath.

It is better to make a more simple 11 sided center cap that is riveted over the top of the base. It will not be seen once finished, which maintains the best possible weather seal and also offers some added roof venting up higher inside the roof cap. This center cone supports the middle of the finial support pipe. It took another 24 rivets for this part. I normally do not build a mid support, but this client was very concerned about high wind storms the West Coast suffers from time to time. It will also make doubly sure the center block will stay dry.

Then there is the forming of the steeple cone to cover this and hold the top of this pipe. The second photo below shows the steeple cone partially formed with the base section on the left that shows the odd 11 sides of this roof cap.

The left photo shows the steeple cone about to be attached, then sealed at the top with a copper plumbing pipe reducer to cover the top of the steeple cone and soldered in place to hold the top of the finial support pipe in place to have a strong hold for the next century of stormy weather. There is another 34 rivets holding this on.

Here is the base attached to the steeple cone and sealed with the finial support pipe sealed to the tip. I always am careful to have the cap base on a level surface and make sure the pipe is set perfectly vertical before soldering and riveting it in place.

I did not seem to get a shot of the underside, but this cap also got the wood blocks with the stainless steel screen attached with stainless steel screws.  The underside has been recaulked over the seams and rivets. I switched to using the stainless steel screen since it is stronger than the copper gutter screen I was using, and has a smaller hole spacing as well. All the screw holes in the blocks were pre-drilled, so they will not crack and split.  The blocks were primed and painted with a high quality black paint, so they would not be visible from the ground.  Each block has a pair of holes drilled and counter sunk for the 3" deck screws to lock them to the roof.  I mounted the spacer blocks inside the cap base to suspend it 1.5" out over the roofing shingles and attached the screen to sealed out pests that may want to nest inside these caps.

This is the very first 11 sided roof cap I have been asked to make. I had made a 7 sided cap for Mr. Grace.


Here is a couple better shots out in the daylight with the finial in place.

The final cost with the 39" medium size Gwain finial was $1,283.40 without a crate and shipping, since the client lives close enough to come here to get it.

From: "Geoff Davey" <wa6cfo@charter.n*t>
Subject: I promised photos!!! (My Custom no-rust Turret Roof Cap Order)
Date: Sat, 13 Sep 2008

David,
I have had the copper cap you built for me with the Gawain Finial installed. Sorry for the delay with the pictures which I had promised but as you know, it's a 2-step process, and I had a 2-week gap in between the 2 steps of the process as my roofer was working on a big job out of town.

I've attached photos of the first step of the process (where they glued it down just ahead of a rainstorm later that afternoon) and the completed appearance after the roofer came back and set the deck screws. He ended up using 4" deck screws as he wanted to be sure that the deck screws penetrated the thick cedar shake shingles and went into and through the plywood sheathing underneath. I don't think that cap will ever come off, even in 129 mph winds we have here sometimes (last winter anyway). You definitely have a superior system for securely mounting the copper caps, that's for sure. And that gorilla glue is some awesome stuff. It hadn't set more than a couple of hours before we had 30mph winds and driving rain, and it held the copper cap securely in place even after just that short amount of time. Amazing!

Let me know if you're able to open the photos. If you want original digital photos of any of the shots, let me know and I can send them as an attachment instead of using the photo sharing software.

Hope you're doing well!

Geoff Davey
Oceanside, OR

Gluing the cap temporarily to the roof:

On the right is the roof cap and finial completed a couple weeks later.

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Below is a photo of our
Better Business Bureau's
NW Business Integrity Award
for the year 1998

1999 Better Business Award

We were also a 1997 finalist for this same award. See our referral web page to see how we managed to be honored with this special award

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