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Old 09-10-2012, 02:07 AM   #1
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Torching part of shingle based roof at hog valley


I came across this thread about torching...

Torch Down vs. Cold Process

and was wondering if there's any issues and concern for torching applied to a hog valley for shingle roof. This is what the roof contractor specified in his bid for new shingle roof (to replace improperly done roof):

(5) Properly install and nail into place one layer of premium fire-resistant fiberglass base sheeting over the cleaned and prepared substrate of the low-sloped ‘hog valley’ between adjoining roof slopes over right side of home per all mfg. specifications, relevant building codes and best industry practices.

(6) Properly install and torch into place a rolled asphalt-composition, rubberized modified-bitumen ‘smooth’ membrane over the newly applied fiberglass base sheet and roof substrate of the low-sloped ‘hog valley’ per all mfg. specifications, relevant building codes and best industry practices.

(7) Properly install and torch into place a rolled asphalt-composition, granulated-surfaced ‘Capsheet’ membrane over the newly applied ‘smooth’ membrane. The color of the surface-granulated ‘Capsheet’ roof membrane will be matched as closely as possible with the pitched shingle roof system.

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Old 09-11-2012, 01:09 AM   #2
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Torching part of shingle based roof at hog valley


Without pics, its hard to say, but we often use torch-down on internal gutters between roofs, and flat areas at the top of roofs that have been put there because of height restrictions, without problems. Only issue i've had is the limited range of colours held in stock here by the suppliers.

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Old 09-11-2012, 08:48 AM   #3
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Torching part of shingle based roof at hog valley


A 3 part membrane, nice.
We always torch dead valleys and such.
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Old 09-11-2012, 02:19 PM   #4
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Torching part of shingle based roof at hog valley


Here's a pic for reference. I believe this was the area in question. This is a photo from roof inspection report:

https://www.dropbox.com/s/073r6sjg1r1bu5c/hogValley.jpg
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Old 09-11-2012, 06:50 PM   #5
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Torching part of shingle based roof at hog valley


Going by the way it was shingled, this is how the slopes look to me, is this correct?
It's hard to judge by the photo.
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Torching part of shingle based roof at hog valley-hvslopes.jpg  
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Old 09-11-2012, 07:27 PM   #6
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Torching part of shingle based roof at hog valley


yes, that's correct how the slopes flow.

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