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CootersShabin
Member
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# Posted: 21 Oct 2013 12:44pm
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Hello, I installed one of those universal Chimney Boots to complete my Wood Burner install this weekend. Anyways, I didn't get the look or the fit on the boot that I was looking for. I have a 12-12 pitch, and this seemed to put quite a wrinkle in the boot on the high side, and the boot is pretty well stretched out on the low side. Anyways, I am just wondering if anyone has done one of these boots on a steep pitch and has a similar story. There isn't much I can do about it now, but I suppose I could strip the silicone at the storm collar (I did trim the storm collar to better match the steep roof - BTW) and readjust the boot top if there is some trick.
Thanks!
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MtnDon
Member
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# Posted: 21 Oct 2013 06:05pm
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They just don'took so pretty with the wrinkles. neither do I with mine 
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davey25
Member
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# Posted: 21 Oct 2013 07:11pm
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Mine did the same ..not much you can do
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tcmatt
Member
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# Posted: 21 Oct 2013 09:45pm
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Cooter,
What brand is the boot? What was the chimney diameter and what was the size of the boot? Also, do you have a photo? I planned on installing my chimney and boot from dynamic fastener next weekend. My roof is slightly steeper than 12/12 and was worried about the same thing. I was thinking of going the regular flashing route (a dead soft aluminum one) but the size is 7/12 -12/12 and was thinking that I might end up with a crooked chimney to fit inside the flashing.
Matt
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davey25
Member
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# Posted: 22 Oct 2013 10:16pm
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The boot that has the dead soft is max 12/12 I don't think it will work for you..mine was like 12/10 and I wouldn't want to go any steeper
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MtnDon
Member
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# Posted: 23 Oct 2013 12:24am
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The DekTite brand of boots are listed as being suitable for up to 10/12 pitch except for the smallest size which can do 12/12
http://www.atlasfasteners.com/DekTites.html
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CootersShabin
Member
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# Posted: 23 Oct 2013 09:47am
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I went with a boot from Selkirk. I had planned to order the Master Flash Red one and figure out a storm collar, but went with the sort of vented black silicone kit from Selkirk as it seemed a better option. (Price was high ($130) locally up north, but I needed to get it done and dropped the ball on ordering it elsewhere earlier.)
The boot was over 6 inch insulated Stainless Chimney Pipe which I believe is 8 inches OD. I don't have a good photo of it.
The base of the boot was something like 22 or 24 inches square, and it needed all of that width across the opening in the eave to peak direction. The cathedral ceiling support box I used was 12" x 12" and on a 12-12 roof you end up with an opening 12" X 17". I even cut the 17" edges plumb rather than have the lower one open up more. I flanged the box down onto the roof, and really I should've made the lower flanges a bit shorter (probably just made them be about 1.5 inches) as I barely got past them once siliconing the boot down.
I'd suggest taking the time to dry fit all the boot and flashing before flanging the support box if you use the cathedral support.
It doesn't look bad from the ground, but it sure doesn't have the nice collar touching off on a silicone donut look that the pictures do with the low rise roof applications.
I hope this helps,
Cooter
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CootersShabin
Member
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# Posted: 23 Oct 2013 09:54am
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Also, one other thing with the Selkirk. Attaching the bracket above the shield is almost impossible on a steep pitch without a flexible extension. I'd get a longer bracket for this location, or fit it up and mark the holes. Then pre-drill the holes in the shield. After this you likely could attach it to the roof (with it bent back to 90), install the shield (thereby clsing the bracket back down to the closed 45 degrees making tool clearnance absent) by starting the screws into the pre-drilled holes and tightening them with pliers or whatever other means.
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davey25
Member
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# Posted: 23 Oct 2013 11:40pm
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I just installed the whole kit..the insulated chimney is about 10 inches..did you put the boot right on the chimney? Or use the shield.?
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CootersShabin
Member
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# Posted: 25 Oct 2013 10:29am
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davey25, I used the shield. I have such a run that I don't think temperatures up there are anywhere near a problem, but I used the shield anyways per the instructions. (The shield gives more chimney support as well.) My pipe was 6 inches ID and 8 Inches OD, so with the shield the boot was going around 10 inches.
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davey25
Member
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# Posted: 26 Oct 2013 12:10am
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Ok mines about 9-10 feet up and mine chimney 10 inch 6 inch inside.. Mine gets pretty warm at that point
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