Quote:
Originally Posted by Clip-Clop
New construction does fly but is also more reliable. Engineered lumber (which is no doubt the fuel for these faster fires) does make things move more quickly but is a better solution.
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yeah, engineered lumber is obviously structurally sound, and no concerns about tree size like with huge beams. but you don't much hear about length of time for fires vs previous types of joists, etc. same as plywood vs osb, engineered '2 x 4s' (i use quotes because they aren't really 2 x 4, they're 1 1/2 x 3/12) that are finger-jointed/glued short sections put together to reach 8' lengths vs studs.
osb is so quick and cheap to make (less people, machines, time, and no need to get perfect 4 x 8 sheets for the two outside layers, so no worries on tree size) but it's not equal to plywood. i hate the stuff. and uses a lot more glue than plywood, so it's got to be more quick to burn than plywood. if they want to use it as cladding on walls that's one thing, but i'd have a fit if they used it on the roof, or if a two story, as the decking on the second floor.