installation guide mlv

STEP 1: MEASURE AND TRIM YOUR MLV

 Measure your walls from top to bottom. deduct 1/8"-1⁄4" from total height.

open your MLV on the floor. Use a practical knife and a ruler to hold one

A square edge passes through the MLV. evenly you don't need to cut the material completely, once it is scored, it will be easy to separate. MLV can also be cut with heavy duty scissors.

STEP 2: PREPARE YOUR WALL FOR INSTALLATION

 For better sound insulation, use an acoustic outlet liner

all power outlets and other barriers.

STEP 3: APPLYING YOUR MLV

  

This step requires the work of two people. 

The MLV is applied over the fiberglass installation and beneath the sheetrock. 

With the help of another, hold the MLV in place, starting at the upper corner of the  

wall. Ensure the sheet is straight along the ceiling and is evenly spaced between the  

floor and ceiling 

Fasteners: Any type of fastener will work (especially if the MLV will be covered with 

drywall) we suggest roofing nails or screws with washers, however you can  

also use a pneumatic cap stapler. 

Placement: Place fasteners every 8” along the top and bottom plate and  

along the length of the stud.


Be careful not to cover electrical outlets boxes. It is best to expose the outlets boxes  

as you install each length of MLV. 

Find the electrical box in your wall and gently press the MLV against the box. Using a 

razor blade carefully cut the opening along the edges of the box. Keep this hole tight  

as possible to the electrical box so that you maintain a good seal. 

Any extra gaps can be filled with Acoustical Caulk. 

Continue as above until your entire wall or ceiling is covered in MLV. 

Where MLV seams fall on a stud, butt pieces against one  

another on the stud and fasten into place. You can add a  

strip of PVC Tape on the seam.

We highly recommend that you end all MLV seams on a  

stud, as free hanging seams may come apart with time. 

Where MLV seams falls between studs, overlap pieces by 2” and tape  

seams with PVC Tape or similar tape.

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