Question, has anybody out there installed supply duct in conc. slab latley, in a home.
It's been sometime sence we have installed duct under slab.we have a gen. contractor that wonts us to install them in that way. I told him its going to be expensive.
its in the pacific N.W. where it rains a lot.
my question is what is the insulation requirments for under slab duct.
the last time we did one we used just spunstrand duct.
and I know insulation req. have changed.
I won't to be prepar before I go to the building dept.
Thanks for any information.