Even More Seattle Snow!

It would depend on a lot of things. Hopefully you don’t have a really flat roof. If your roof has a pretty steep pitch to it, you’re probably OK. Lots of carports collapse under these conditions because they are usually really flat with regards to pitch.
I just spent three hours removing snow from my roof, because it’s relatively flat and it may show more. I think there may be 20″ of snow on it now.
I think we’re coming out of it, though.

the roof construction used in your fine seward park split level is known as a “purlin” roof it appears that your roof pitch is under 9.5 deg. or 2/12. there are only 2 purlins (one being the wall purlin) on each side of your ridge, the ridge is floating and the rafters are small (2″/6″)?, on 24″ centers. even with trusses, this roof could sag between the purlins under a heavy snow load. this type of roof would pass well to a desert climate, sans sandstorms.
the ammount of snow any roof can bear depends on the density of the snow/ice. 16″ of snow over time, on a poorly insulated, poorly sloped roof melts into ice and weighs nearly the same but deceivingly looks much lighter.
if lake washington gets another big dump on top of this one, you could be in trouble. in which case paying someone to clear your roof would prevent imminent failure.
god this sounds like a bunch of carpenter hooey, but it’s the best way i can xplain it.
may jesus christ be your personal savior and smoke a holly-jolly snowplow with you.

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