I am about to lay a cushioned vinyl floor in our bathroom. I know that I
need to lay a hardboard sub-floor first and the floorboards would show
through. I have looked on various websites and am receiving conflicting
information about whether they should be laid rough or smooth side up?
Could I have your expert opinions? If anyone can justify, it would be very
As far as I know it doesn't matter of no adhesive is involved. But if you
are going to stick the edges down then lay the hardboard rough side up.
For laying instructions:
See page 2. It recommends plywood in bathrooms under vinyl tiles but you
should be fine with hardboard under sheet vinyl.
I'd lay it rough side up, nailed at 8" centres. The reason for rough side up is
to discourage the vinyl (or carpet) from slipping around. Nailing stops the
hardboard sliding around or slapping when walked over, tape the seams
with 2" duct tape too. You are also meant to acclimatise the boards to the
room for a week before hand but I'd give it a light water spray on the rough
side & make it a day
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.