m Ransley wrote:
Extra weight ? Look into design loads, there is no way a properly
designed building will buckle even with an avg snow load. More likely
the house has settled , or poorly built including drywall and internal
supports.

There are many possibilities. However Dunzley noted the new roof added
over the old. That could well be the proverbial straw. It is one item
worth look at.

--
Joseph E. Meehan

26 + 6 = 1 It's Irish Math