Sliding snow
Sliding snow
(OP)
Hi,
I have couple of questions regarding sliding snow
1)Is insulated metal deck considered as a slippery roof?
2)I have a situation where I have a high roof and a low roof. The slope of the roof is around 4 degree monslope. There is a parapet around the high roof. As there is an obstruction (parapet) should I still consider snow sliding from the high roof to low roof?
I have couple of questions regarding sliding snow
1)Is insulated metal deck considered as a slippery roof?
2)I have a situation where I have a high roof and a low roof. The slope of the roof is around 4 degree monslope. There is a parapet around the high roof. As there is an obstruction (parapet) should I still consider snow sliding from the high roof to low roof?






RE: Sliding snow
2. No
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RE: Sliding snow
Are you draining that parapet/roof area in some way? Does that lead to ice build-up on the lower roof, or water run-off and concentration, and an icing problem around the bldg.? Can the parapet cantilever take the sliding/lateral snow loading? Is it flashed properly do that the wall below does not become the drainage path?
RE: Sliding snow
2. Probably not, depending on the height of the parapet, as it constitutes a dam.
Mike McCann, PE, SE (WA)
RE: Sliding snow
There are drain pipes every often on the roof.
RE: Sliding snow
RE: Sliding snow