Since snow falls at slow steady speeds large quantities of snow can fall on the roof resulting in bowing.
Flat snow roof.
While not frequent per se the low slope of a flat roof does make it more prone to certain problems particularly when it interacts with the elements.
With a flat roof you don t have the typical attic space afforded by a sloped roof.
Without that space heat inside your house can warm up your roof melting any snow that s piled up.
A flat roof gives your home a sleek modern profile but it comes with its own share of special considerations.
As snow falls it can accumulate on your flat roof putting unnecessary weight on the structure.
When water from that melted snow works its way to the edges of your roof where it isn t as warm and then re freezes it can also form ice dams.
One of them is that flat roofs leak more easily than pitched ones.
Excessive rain heavy snow and built up ice all pose extra challenges for flat roofed homes.
This down bearing pressure can cause the roof to bow and result in ponding under the roof structure.