Roberts Silent 3-in-1 Vapor Underlayment

Perfect for installation over a concrete subfloor, Roberts Silent 3-in-1 Vapor Underlayment will protect your flooring from any subfloor moisture and reduce the sound from the flooring. This is a perfect option for rooms with moisture, such as a kitchen or bathroom.

Gather Your Supplies

Gather your supplies before you being your underlayment installation to make sure you have everything you need within reach!

  • Roberts Underlayment
  • Broom or a Shop Vacuum
  • Tape
  • Utility Knife

Begin Installation

Step 1: Read Manufacturer’s Instructions

A very important step in this process is to read the manufacturer’s instructions. These will typically come with the underlayment, but we also have a downloadable and printable PDF available for you in the link above.

Step 2: Clean and Prep the Subfloor

Having a properly prepared subfloor is a key to any flooring installation. Check out the details for concrete and wood subfloors. Clean the subfloor so it is free from dirt and debris.

Step 3: Start the Installation

After you have done everything to prepare your subfloor properly, it is time to begin the installation. Position the underlayment so that the Roberts logo is facing the subfloor and the green side is facing up.

Step 4: Leave Space Between the Underlayment and Wall

Just like the flooring, the underlayment will contract and expand with temperature. This underlayment requires a 1/4″ expansion gap around the edges.

Step 5: Unroll

Start to unroll the underlayment once you get the expansion gap established.  Measure and cut the underlayment to fit the length of the room or space.

Step 6: Unfold

Unfold the overlapping film. This will be the starting edge for the second row of underlayment.

Step 7: Start the Flooring Installation

Install your underlayment and flooring in sections. By following the manufacturers instructions for the flooring, install your first row. Continue installing until you are a foot away from the edge of the underlayment.

Step 8: Row 2

Begin installing the second row of underlayment. Line up the seams, unrolling the second row over top of the film edge. Cut per the length of the room.

Step 9: Tape the Seam

Tape the seams together, making sure not to overlap the underlayment. Keep seams tight to have a secure moisture barrier.

Step 10: Continue with the Installation

Continue installing the floating floor, taking it section by section.

Step by Step Tutorial

Need help selecting the right underlayment for your flooring project? Contact one of our flooring experts to guide you through the types.