Should I use a moisture pad under sheet vinyl in a concrete spare bedroom to prevent moisture and add cushion, and do I need adhesive for both?
Asked by Kenan Aydan 
8 months ago
Last Updated: April 26, 2024
Hey there! So, we’re thinking of going with sheet vinyl for the spare bedroom because it’s affordable and easy to clean. The room is pretty small, so we’re hoping that seams won’t be too noticeable. Right now, it’s just concrete. Do you think I should put down a moisture pad to prevent any dampness and add a bit of cushion? If so, what kind would you recommend? We live in Florida, so keeping everything completely dry might be a challenge. Also, do you know if I need adhesive for both the pad and the sheet vinyl, or just for the sheet vinyl? Thanks for any help you can offer!
Make sure to check in on lvp
Is saying that it costs too much.
I’ve seen some options for less than $2 per square foot, but I understand the concerns.
In an ideal situation, I would choose LVP, but since this isn’t a permanent residence and we’ve already had issues with bamboo snap-in flooring warping due to the fluctuating weather in South Florida, I just need a solution that is durable and worry-free.
This occurred because the plastic cover did not extend all the way to the end, resulting in damage to the flooring. I’m hesitant to make any changes right now due to the pregnancy.
Yeah, bamboo or other wood laminate can warp without proper underlayment under specific conditions. I’ve installed a lot of LVP and never faced that issue, even with the more affordable options.
That’s actually great to know, thanks for sharing that!
No worries. Going back to your original question, if you opt for sheet goods, you won’t need an underlayment. In that case, I recommend using a perimeter glue. Only the outer edges are glued down instead of the entire floor. This minimizes the impact of humidity changes on the glue. The perimeter glue allows for more flexibility with changes in moisture levels.
I appreciate the insight. I’m considering just placing it over the bamboo. We don’t have any leaks, as confirmed by a VA inspection. The only issue is unsightly warping on both sides of the room. Do you think this approach would be sufficient for a 5-year plan?
I’m afraid not. Unless there is existing damage to the bamboo, it will likely continue to expand and contract beneath the vinyl, revealing any flaws. While it may not necessarily cause any harm, I don’t think you would be satisfied with how it looks.
Sure, that sounds like a good plan. So, if I understand correctly, I could simply cover the room (which is small, around 10.5×14.5) with a sheet using glue and be done with it?
Hey anonymous participant, I’m thinking this is on concrete. If it is, remember to scrape and sweep it clean before sending it out. I’d recommend doing a perimeter glue down as well.
Wow, , that’s absolutely fantastic. Thank you very much!
Hey there, anonymous participant! No need to worry. Just give me a shout if you need any assistance.
You don’t have to use a moisture pad when installing sheet vinyl.
The best option would be to seal the concrete using concrete sealer before gluing sheet vinyl. Moisture shouldn’t be a big concern, though.
Certain sheet vinyl doesn’t require glue for installation. Maybe consider applying a moisture sealant on the concrete.