Place the vinyl in the dryer on low with a damp towle or two and dry a few minutes just until the inside of the dryer starts to heat up, then take it out and see if the wrinkles seems pliable, if they do lay it out flat some where and let it cool.
The installers clearly put the vinyl in while the glue was still wet, and with nowhere for that moisture in the glue to go, it builds up and forms these ripples.
You can try flattening the warped area by placing a heavy object on it or using a heat gun to soften and reshape the vinyl. If the issue persists, professional repair may be necessary.
If the floors are glue down, gently peel back the area buckling. Scrape away any existing adhesive that has failed, softening it with a hairdryer if necessary. Apply new adhesive and work the vinyl tile back into place. Roll over the area to smooth out the buckled area and ensure proper adhesion of the adhesive.
Use a roller or a heavy object (such as a book or a piece of wood) to smooth out the vinyl and ensure that it adheres evenly to the subfloor. This will also help eliminate any air bubbles that might have formed.
Commercial vinyl floor cleaners are available, but you can make a simple, effective cleaner for vinyl floors by mixing apple cider vinegar with water. The vinegar's acidity removes dirt without leaving a soapy film. Mix one cup of cider vinegar with a gallon of hot water.
The bulges could be remnants of adhesive used to hold down an earlier glued-on floor covering. Or the installers might have troweled on a floor-leveling compound but failed to smooth it.
Use Pressure
Then place two or more heavy objects (large books, for example) on top of the record, making sure the weight is evenly distributed across the entire surface. From there, it's all about patience and time. It might take several weeks or months to flatten out a severely warped record.
Before installing the LVP, it's important to make sure that the subfloor is level and dry. Use a self-levelling smoothing compound to smooth them out. 2-3mm of smoothing compound will dry to walk on within 2 hours however will need at least 24 hours to dry sufficiently for the LVP to be adhered to it.
Put your record in its sleeve between two heavy books, boxes, or similar heavy items. Leave it there for a few days, then check it to see if the warping has been corrected. Be careful not to use items that are too heavy — you're trying to straighten out the record, not flatten its grooves.
Vinyl plank flooring might not lay flat during installation due to a variety of reasons. These could include an uneven subfloor, improper acclimation of the planks to the room's temperature and humidity, or even the lack of an expansion gap around the room's perimeter.
Often, these are due to faulty installation or an undetected water damage. If dents or bumps appear in a fully glued vinyl floor, the adhesive has often come loose. Sometimes it helps to warm the affected area well with a hairdryer and then re-establish the adhesive with a rolling pin and a lot of pressure.
A garment steamer is typically enough to remove the wrinkles without melting the vinyl fabric. You can also use a heat gun or a hairdryer if you don't have a garment steamer, but you'll need to be very careful not to melt your vinyl.
Leaking pipes, poor drainage, or excessive indoor humidity can cause the wood to expand, cup, or buckle. Water can also damage the subfloor, leading to uneven surfaces. Foundation problems: If your home's foundation shifts or settles, it can cause the floors above to become uneven.
If your floor is glued-down, gently peel the back area, scrape away the adhesive glue, and soften it with a hairdryer if required. Apply the new adhesive and put the vinyl tiles back into their position. Roll over the area with the roller to smooth out the buckled area and make sure proper adhesion of the adhesive.