XTRM Ply SoundSafe Installation Guide

Applying SoundSafe

SoundSafe can be installed over existing wall or ceiling surfaces or directly to wood/metal framing.
Options for framing include the following:

a) loosely or taught on framing

b) attached to framing

c)  between layers of drywall, plywood, plaster, etc.

If installing on bare wall studs or ceiling joists, install parallel to framing (vertically on wall studs). Because of the stud or joist behind the seams, you can put pressure on them. If you are putting SoundSafe on existing drywall or plaster, find the studs/joists and mark them with a chalk line. SoundSafe can be either horizontally or vertically installed as the wall will provide seam support. The final result should be a flat application of the material.  

Supporting the Fasteners

Although SoundSafe is highly resistant to tears, it can be damaged under its own weight. This is why the type of fastener used is important. A wide head fastener, such as cap stapler, screws with plastic washers or roofing nails assists greatly with weight distribution. One or two fasteners is usually NOT enough to support the material. Start with several fasteners at the start of the roll before allowing to hang. Do not rely on drywall alone to support the weight. All fasteners must be affixed directly into the frame, flush with the structure.

Preparation Before Installation – Measuring & Cutting Material

1. Measure the distance between floor and ceiling. Subtract 1/8" - 1/4" from the length that
    is measured.

2. Place the SoundSafe material on a flat surface and cut to desired length.
3. Cut a square edge with a T-square and a utility knife. 

for MLV Acoustic Barrier

Handling Seams when Applying the Material

Handling Seams on the Stud
Having a seam on a stud makes it easy to apply vinyl or foil tape. To install on a seam, butt two panels of material. Do not allow any overlap, Fasten each separately to the framing. Finally, cover each seam with about a 2" strip of foil or vinyl tape. 

Handling Seams between the Studs
When the length of the material does not fit your entire framing, seams can occur between studs. Overlap approximately 2" of material over the next panel. Cut away the layer overlapping top and bottom plates of the framing. Seal seam with 2' wide vinyl tape strip.

Note about overlapping SoundSafe:  Be sure to avoid putting two layers of overlapping material on the framing. This will avoid any issues with installing drywall flush to the wall.

THIS WARRANTY IS SUBJECT TO THE TERMS, LIMITATIONS AND CONDITIONS DESCRIBED BELOW. THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE FACE HEREOF. NO REPRESENTATIVE OF ENGINEERED POLYMER TECHNOLOGIES HAS AUTHORITY TO MAKE ANY REPRESENTATIONS OR PROMISES EXCEPT AS STATED HEREIN. THIS WARRANTY PERTAINS TO THE ENGINEERED POLYMER TECHNOLOGIES MATERIALS ONLY.


WARRANTY: Because of the many installation variables beyond our control, we shall not be liable for incidental and consequential damages, either in contract or tort including  negligence, directly or indirectly sustained, nor for any loss caused by application of these goods not in accordance with current printed instructions or for other than the intended use. Engineered Polymer Technologies liability is expressly limited to replacement of defective goods not to exceed the original value of the Engineered Polymer Technologies materials. Any claims shall be deemed waived unless made in writing to us within thirty (30) days from the date it was or reasonably should have been discovered.


BUILDING CODE: Engineering Polymer Technologies presents these construction concepts with the understanding that local Building Codes vary. It is the responsibility of the installer to ensure that these concepts and recommended installation methods meet local Building Code. Engineering Polymer Technologies is not liable for mis-installation or non-compliance with local code. This warranty supersedes and is in lieu of any and all other expressed warranties that are in conflict with the terms and conditions stated herein.

Step 1

Step 2-3

Step 4

Step 5

Step 6

Step 7

Step 8

Trade Affiliations

Corporate Headquarters
& Manufacturing Facility

1227 Central Avenue

Hillside, NJ 07205

Phone 908-558-0011

Fax 908-558-9366