Knowing some of the reason why floors are spongy and the causes can help one determine whether further investigation should be done.
What causes soft spots in the floor under vinyl.
In order to get the foam into the hole one.
There was a leak in a pipe small leak.
It was getting all the floors wet underneath and they were staying wet.
For quick repairs of soft spots in your laminate floor use an air inflation needle or a syringe used to blow up sports balls on a can of spray foam.
The water traveled along the pipes.
If a second story floor is spongy or bouncy and the first floor ceiling under the spongy area has drywall cracking in the ceiling or cracked and damaged plaster then there should be a higher level of concern.
There seems to be a small void under the floor and when you step on it it depresses and creeks a little bit.
A youtuber suggested drilling a small hole where the soft spot is and injecting expanding foam into the void under the laminate.
I have looked for a solutions to fill the void and i found one.
We had to rip up the floors and tile and replace it all.
Soft spots in mobile home floors mobile home floor problems.
They are a big problem in homes with particle board floors.
Moisture weakens glue bonds and causes the edges to lift.
Then we were getting the floors soft.
Mold and mildew can get into the wood floors.
This is a bad.
Well my husband checked under the trailer.
Vinyl flooring can either be glued to the subfloor or it can float on top of it and either way moisture underneath it causes problems.
I can only think of two ways you would have a soft spot on laminate over concrete water under the underlayment which migrates when you step on it sort of like a blister or the laminate floor is too tight to the walls or wet so it is bulging up and as you walk on the bulge it migrates elsewhere in the floor.
Attach an air inflation needle as an extension onto a can of spray foam.
They occur when the subfloor gets wet causing the sub floor material to begin failing.
Soft spots in a laminate floor can be caused by an uneven sub floor or improper installation of flooring underlayment.