If you are looking for a test report please send an email to [email protected] and specify the product and type of report you are needing. We would be more than happy to email you a copy of any testing data that we have.
SoundStep LV does have an integrated moisture barrier. The Perm rating for SoundStep LV is 0.14Perm. The WVTR (water vapor transmission rate) is 0.18lbs/1000sf/24hrs.
SoundStep LV does have an attached vapor barrier, which will offer water protection for your plywood subfloor.
SoundStep LV can be installed over existing sheet vinyl, provided the flooring manufacturer approves it as a suitable substrate. SoundStep LV is not approved for use with peel and stick tile. Please consider using an alternative flooring product, such as luxury vinyl tile or plank over SoundStep LV.
SoundStep LV is not approved for use with sheet vinyl. Please consider using an alternative flooring product, such as luxury vinyl tiles or planks over SoundStep LV. Telegraphing is a very common problem with sheet vinyl, where the imperfections in the subfloor become visible at the surface.