Does the UBC require bridging for a floor constructed of 2×10 joists with 7 and 12 foot spans?
Dundee
Look closely at these common locations for hazardous materials in older homes.
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Replies
I believe cross bridging is required at 8ft centers, so the 7ft span would be okay, but the 12 foot span would require bridging.
Soultrain,
Big Thanks for the reply.
Dundee
When is it OK to take bridging out and how much can you take out? Example: only for duct and lighting and other similar items being installed if the bridging on either side is intact?
And what is the difference between cross bridging and solid bridging..structurally. When and why is it specified?
Is the bridging in a old house less important than that in a hew house. i.e. the wood has stabilized?
Just wondering...If you haven't drawn blood today, you haven't done anything.
at the risk of being proven wrong....
i don't think bridging has been required by code for many , many years
and there are substitutes for bridging..
plywood subfloor nailed and glued
plywood subfloor with furred ceilings below
cross -bridging
solid bridging
in terms of stiffening floors
there is some debate
here's how i rate them: from stiffer to less stiff......
plywood subfloor nailed and glued with furring below
same floor with solid bridging, no furring
same floor with cross bridging, no furring
same floor with no furring or bridging
plywood floor not glued
Mike,
Thanks for the break donw on bridging methods and their potential stiffness.
Regards,
Dundee