Colorado Weather Discussion Thread
Quote:
Originally Posted by
wolfelot
What are the common roof structure characteristics for roofs that can have dangerous avalanches? Like is any roof with an 8/12 pitch or greater not an issue since they shed snow more readily than shallower roofs, etc.?
With a wet first storm that froze, then snowed more on top with cohesive layers, again and again, many roofs did not release this year that normally would. With a near record snow year, it’s been much like a mountain snowpack that doesn’t release periodically, then runs huge when it does. Manually removing snow and ice dams from dangerous areas was also hard to maintain due to time/timing, costs, labor, frequency, amounts and places for the snow to be moved too.
Check out:
The Trials Of Personal Snow Removal.
https://www.tetongravity.com/forums/...d.php?t=351655
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Colorado Weather Discussion Thread
I don’t think I have ever felt the need to wax with blue in late March before! Due to colder temps, the excellent snow quality this year keeps on giving.
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Colorado Weather Discussion Thread
Quote:
Originally Posted by
Foggy_Goggles
My experience is that is most frequently metal roofs with snow guards that have the dangerous slides. It just doesn't seem to happen with shingles even close to as much. The worst are the dried in homes with ice and watershield on. Once you put some temp heat inside and create the sliding surface, boom.
It frustrates me that plan review around here that goes up to 130psf snow load does nothing regarding roof design while stating safety as the reason for made code enforcement issues. I recently worked on a house with 3 10/12 metal roofs shedding onto a deck with three sliders directly under the eves. By March, in a low snow year, the snow was 10 ft. high everywhere.
Its bad enough that I consider it a legitimate job hazard.
This was from the initial freeze and ice dam on a 12:12 shingle roof outside my shop. Rarely, the 12:12 shingle roof releases without encouragement. The shop is 6:12, metal and usually releases each storm. This year the entire metal roof froze and also just released.
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It amazes me how many homes do not have roofs that protect access points and outdoor spaces…..but a lot of this is driven by the owner, not the designer/architect. Many owners want wrap around decks without roofs or porches. And to protect these areas, often requires a roof that adds complexity and valleys to the roof. As I said in the other thread, the Bavarians and Swiss figured it out a long time ago. Simple roofs with no valleys and protected accesses and decks.
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