CaptainBuilt
Well-known member
I used 3/4" OSB made for house sub floors. Then covered the underside with FRP to make it water proof. I used OSB because the original flooring had half lap joints every 6 inches. I want everything to be air/vapor tight. Before I lay the hardwood floor down I will add a large sheet of plastic and tape it to the walls, that way no air can make its way through the floor.
Then I will add 1/2" insulation and then hardwood flooring. It doesn't look like I've done much, but from here on out, things will go VERY quickly.
The FRP on the underside of the OSB:
Floors in and everything sealed up!
RV Steps in. I need to do some more tweaking before sealing everything up. But, its working great! Will really come in handy once the box truck is 4WD.
Then I will add 1/2" insulation and then hardwood flooring. It doesn't look like I've done much, but from here on out, things will go VERY quickly.
The FRP on the underside of the OSB:
Floors in and everything sealed up!
RV Steps in. I need to do some more tweaking before sealing everything up. But, its working great! Will really come in handy once the box truck is 4WD.