"D'Olier" wrote
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.


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.