As a whole OSB is not the best option to use as an underlayment for engineered hardwood, and the main reason is that it puffs up when it comes into contact with water, and doesn’t shrink back again. Plywood will shrink back to its original shape after it expands.
As a general rule you should always level the floor first using a levelling compound. It is much easier to apply the adhesive when the floor is already level. When the floor is uneven it’s more difficult to get the groove patterns you need in the adhesive.
Your floor can probably support tile, but in rare cases, it depends on the type of subflooring in your home, the amount, strength, and size of your floor joists, and whether you’re tiling a first-level or upper-level floor of your home. Tile weighs about 4-6 pounds per square foot.
You can lay tile over painted concrete floors, but the adhesive isn’t always reliable. If you choose to try anyway, remove the paint, grind the concrete, or resurface the floor first to ensure that the adhesive holds. This requires sanding, power washing, paint strippers, or soda blasting.
If your ceramic floor tiles aren’t sticking, it could be due to improperly mixed grout/thinset or not using enough grout/thinset. You could also be attaching the tiles to the wrong base, letting the thinset become too dry before applying the tiles, etc. Determining the problem is key to fixing it.
There are many things you could do to spruce up a home but if you want to take things to the next level, installing a …
Installing carpeting directly over a laminate floor is an option that can easily be done. If the existing laminate floor is in good shape, you can install the carpeting and live on it for many years. When you remove the carpeting, you may even be able to salvage the laminate flooring.
You can tile over your old floor adhesive by placing a barrier down in the form of thin-set, underlayment, a false floor, or using a floor leveling compound before tile installation. To achieve the strongest bond and preserve your moisture barrier, you should scrape, sand, or strip the old adhesive.
Laminate can be installed on an uneven floor; however this can degrade the quality of your new laminate. The finished product may become warped as a result, causing the floor to shift and become damaged when walked on. For this reason, it is best to level the subfloor prior to installing laminate.
You can install Luxury Vinyl Plank (LVP) or laminate wood flooring directly over carpet with low pile height. Flooring professionals do not recommend the long-term installation of laminate or LVP over high pile carpet. You can secure plywood on top of plush carpeting to achieve stability in a pinch.