Frequently Asked Questions

1. Why Choose an Underlayment?

2. What is MULTIPLY® underlayment?

3. Where can MULTIPLY® be used?

4. Can I use MULTIPLY® panels in a renovation?

5. How easy are the panels to install?

6. Are there any special Storage, Handling or Preparation details I need to know?

7. What type of fasteners do I need?

8. Does MULTIPLY® require a vapor barrier?

9. Can I install MULTIPLY® panels below grade?

10. Do I need to use a joint patching compound?

11. What type of sandpaper do I need?

It’s What’s Underneath That Counts!

6. Are there any special Storage, Handling or Preparation details I need to know?

	Always store MULTIPLY® panels in a dry covered area, over a minimum of two supports, to keep them flat.
	Acclimate the panels to the room’s conditions for a minimum 24 hours and 48 to 72 hours in more extreme temperature/humidity conditions before installation.
	Thoroughly vacuum away all surface dust and debris before installation.