Underlayment needed for vinyl plank flooring?

[lizzzys]

Originally Posted by ldireland

I installed vinal plank in our 2003 Classic 30 without any underlayment which is how the instructions say....but then....it also said it is not suitable for RV installations due to the swing in temps. Ours had an initial shrink but then grew back into place. It averaged itself and looks great. Easy to install in an afternoon.

Does your 2003 Classic 30 have a slide out? We have a 2002 with a slide out and are considering putting in vinyl plank. Do you happen to remember how much product you purchased and did you go into the bathroom/bedroom too?

Thanks

[rodsterinfl]

I too installed vinyl plank flooring but it supposedly had the lowest expansion/contraction (by their words) and it worked fine/ no underpayment. I installed it over the original.

[Whigmi]

I haven't purchased the flooring yet...have had to do too many other things first. Our 2003 does not have a slide out, and I think I had estimated needing about 200 s.f. We did install a sub floor so it would raise the floor to closely meet the bathroom floor. Our floorplan is one where the bathroom spans the width of the Airstream, so I wanted the floor to go seamlessly through the length of it. Looking forward to see how it looks in the end!

[carl2591]

I bet closer to 40 than 200. a lot of effort for 40 lbs. take the dinette and sofa and that is the big stuff.

Originally Posted by J. Morgan

What does the old floor weigh? 40lbs? 200lbs?

[waninae39]

can you use the same as the wood underlay in a house

its like kraft paper