I have the underlayment for installing laminate flooring. The underlayment
says its moisture resistant. This means I don't have to include a separate
waterproof sheet or anything right? A 'how to' book I have says I need to
have a waterproof layer AND an underlayment layer.
What does the manufacturer say? If the underlayment is made to be
waterproof, nothing else is needed. Most of them today are a polyethylene
type material and provide both cushioning and act as a moisture barrier. .
Read the instructions with the brands of materials
you use. Lots of underlayment have plastic
(waterproof) layers so you don't need an
additional waterproof layers (will say so on the
package) some underlayments are not waterproof.
If it really bothers you put down a layer of 6 mil
plastic and then the underlayment. It won't hurt
weather a waterproof layer is needed or not. I
would tend to use whatever the laminate says to
use and some require that brand of underlayment
for the guarantee to be good.
Moisture resistant & water/moisture proof are not the same. Follow
manufacturers instructions. If you're trying to guard against moisture on a
concrete floor, you can not just install moisture resistant underlayment.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.