Technical Specifications

ManualsBrandsHomasote ManualsBuilding materials1/2" x 2' x 4' Handipanel

4) Install gypsum wallboard to resilient channels as per manufacturer’s

installation instructions.

*If resilient channels are not installed, the gypsum wallboard must be

installed, staggering all seams, over the Homasote panels and screwed into

the ceiling joists as per gypsum wallboard manufacturer’s installation

instructions.

Resilient Channels Installed To

Ceiling Joists

1) Install resilient channels (or equal), spaced a maximum of 16" o.c., to

ceiling joists. Use sufficient length screws to penetrate into the ceiling

joists a minimum of 3/4"

Screw Homasote panels using standard dr

ywall screws directly into

resilient channels. Allow for 3/16" expansion joint at all panel edges.

3) Screw Homasote panels 4" - 6" o.c. along panel edges and 10"-12" o.c.

at intermediate supports.

4) Gypsum wallboard is to be installed, staggering all seams, over the

Homasote panels and screwed into the resilient channels as per

gypsum wallboard manufacturer’s installation instructions.

Ceiling Construction

Provide framing or furring at maximum 16" o.c. regard-

less of 440 SoundBarrier® or N.C.F

.R. Homasote® panel

thickness. All panel edges must fall on framing members.

The 8’ side of the Homasote panel must be installed

parallel to floor joists.

Homasote Installed To Ceiling

Joists

1) Screw Homasote panels into ceiling joists using standard drywall

screws of sufficient length to penetrate a minimum of 3/4". Allow for

3/16" expansion joint at all Homasote edges. The 8’ side of the

Homasote panel must be installed parallel to floor joists.

Screw Homasote panels 4" - 6" o.c. along panel edges and 10"-12" o.c.

at intermediate supports.

3) Install resilient channels (or equal) spaced 24" o.c. over Homasote

panels. Use sufficient length screws to penetrate through the panels

and into ceiling joists a minimum of 3/4".

-2-A) Fabric-Wrapped 440 SoundBarrier To

Wood or Metal Framing

1) Apply fabric to 440 SoundBarrier panels using adhesive recommended

by fabric manufacturer for application to wood fiberboard. The fabric

adhesive must be applied to the face of the panel in the proper amount

to prevent bleed-through. Wrap fabric and glue around edges and

continue for 2” on backside of board.

Homasote is not responsible for

the appearance or performance of job-site fabric-wrapped panels.

2) Lay panels flat for the necessary time to allow adhesive to fully set.

3) Apply a 3/8” bead of sub-floor adhesive meeting APA AFG-01

specification to intermediate studs in accordance with the adhesive

manufacturer’

s recommendation.

Attach metal frame clips to long edges of 440 SoundBarrier panels

ever

y 12” o.c. See complete details in “2-D) Complete Instructions

For Metal Frame Clips.”

5) Apply fabric-wrapped 440 SoundBarrier panels to adhesive and fram-

ing, with recommended expansion gaps as stated at the bottom of page

1, applying hand pressure from the center of panel out to the ceiling

and floor where adhesive is located to insure positive contact. Screw

panels 6” o.c. to plates or blocking at floor and ceiling. Screws should

be sufficient length to penetrate 3/4” into framing. Hold screws 3/8”

back from edge of panels. Screw clips to framing and brace panels for

a minimum of 24 hours for adhesive to set.

W-2-B) Fabric-Wrapped 440 SoundBarrier To

Masonry Walls

1) As per APA recommendations, install wood furring strips to masonry

walls, not exceeding 16” o.c. for 1/2” 440 SoundBarrier panels and 24”

o.c. for 5/8” and 3/4” 440 SoundBarrier panels.

Follow instructions “2-A) Fabric-Wrapped 440 SoundBarrier To Wood or

Metal Framing” for applying fabric wrapped 440 SoundBarrier panels.

W-2-C) Fabric-Wrapped 440 SoundBarrier To

Finished Walls

Apply wall panels following instructions in “2-A) Fabric-Wrapped

440 SoundBarrier To Wood or Metal Framing”. Apply adhesive to back of

440 SoundBarrier panels in 3/8” beads 16” o.c. and at perimeter, holding

adhesive back 3/4” from edge. 440 SoundBarrier panels must be aligned

such that edges fall on framing and must be fastened into wall framing.

-2-D) Complete Instructions For Metal

Frame Clips*

1) Lay out back of panel by drawing

lines at 16” inter

vals.

Locate clips above the line on one

side and below on the opposite side.

(A staggered clip layout creates a

tongue-and-groove panel joint).

See diagram (right).

3) Seat the clips around the perimeter

of the board as shown in the

diagram. Do not damage panel edge.

(Use 7 clips per side for a

4’ x 8’ panels).

4) Apply a 3/8” bead of sub-floor adhe-

sive meeting APA AFG-01 specifica-

tion to intermediate studs in accor-

dance with the adhesive manufactur

er’s recommendation. A double bead

of adhesive is necessary on studs where adjoining panels fall.

5) Position panels (with clips installed) on any wood or metal framing.

ighten the joint with a floor leverage tool. Screw or nail panels to floor

and ceiling plates as per 440 SoundBarrier installation instructions.

Use low-profile screws to secure one series of clips to wall stud.

Stagger joints on opposite sides of the wall when possible.

6) The clips on the adjacent panel simply slide behind the fixed panel.

*Source: Cymax Systems, Inc.

440 SoundBarrier

and N.C.F.R.

Homasote

Combined Installation Instructions

CEILING APPLICATION