Installation Guide

ManualsBrandsArmstrong ManualsBuilding materialsGrenoble 24 in. x 48 in. x 1/2 in. Square Lay-In Ceiling Panel (Case of 8)

Planning

Your

Armstrong

Ceiling

Safety Glasses

Tape Measure

Straight Edge

Hammer

Pencil

#6 Course Thread

Drywall Screws

4’ Carpenter's

Level

Utility Knife

Stud Finder

Hacksaw

Dust Mask

Drill/Screw Gun

Gloves

Tin

Snips

String

Chalk

Line

Screw Driver

HOW TO INSTALL YOUR SUSPENDED CEILING

Safety Tips

■ See Warning statements elsewhere on this document.

■ Work Site Environment: Initially there may be a potential adverse impact on

indoor air quality within the general work area during the installation

process. During installation, adequate ventilation of the work area should be

maintained without causing the entry of contaminants to other parts of the

building. Persons who are sensitive to odor and or chemicals should avoid

the work area during this process.

Important Information:

■ Store and install panels in areas with a temperature range of 60° to 80°F

and not more than 70% relative humidity.

■ Remove panels from the cartons 24 hours before installation and allow

them to adjust to normal interior conditions of the area where installation

will take place.

■ Never install ceiling panels below an existing ceiling that contains

imbedded radiant-heat coils.

■ Do not apply loose fill or batt insulation so that it rests directly on the

panels.

■ Keep hands clean to avoid smudges on the finished ceiling.

■ Always cut ceiling panels face up with a sharp utility knife.

■ Main beams run the opposite direction of the joists.

■ Main beams are on 4 foot centers.

■ The minimum drop is 3 inches.

■ Allow for drop-in lights by adding 2" to the height of the light for clearance.

■ Locate Hidden joists by tapping on the ceiling until you hear a solid thud.

Drive a nail in here. Repeat this to locate other joists and determine their

direction.

■ Mark the joist locations with chalklines.

10'6"

Sample Room

Joists Usually

16" on Center

 Joist Direction 

Snapped Chalk

Lines in Center

of Joists

Locate Hidden Joists to Install Wire Fasteners

1. Find joists (A).

2. Drive nails to find exact center line of joists.

3. Snap chalk line for each joist (B).

Determine Length

of Border Panels

1. Divide width of

room by length of 2'

single panel *4' 9'

–

2. Add the remainder......1'

to length of

single panel + 4'

= 5'

3. Divide it by 2 . . . . = 2' 6"

Length of the Border Panels

is 2' 6"

2'6"

1' 3" 1' 3"

Determine Panel Layout

1. Determine length of border panels.

2. Determine width of border panels.

For best appearance,border panels

should be the same size on the

opposite sides of the room. Use your

room dimensions and follow the

formula in the worksheets at right.

Sample Room Panel Layout

10'6"

Width

of Border

Panel

Length

of Border

Panel

Cross Tees 2' Apart

*Use 4 for 2' x 4' panel, 2 for

2' x 2' panel

*Use 2 for 2' x 4' panel, 2 for

2' x 2' panel

Main

Beams

4' Apart

Determine Width

of Border Panels

1. Divide length of

room by width of 5'

single panel *2 10'6"

–

2. Add the remainder......6'

to width of

single panel + 2'

= 2' 6"

3. Divide it by 2 ... = 1' 3"

width of the

Border Panels is 1'3"

Sample Worksheets

,using 2' x 4' panels in a 9' x10' 6" room.

Tools

Needed To

Install Your

Ceiling

We are constantly working to improve our instructions with learnings from customers like you.

For the most up-to-date instructions, please visit ceilings.com/installation. If you need additional

guidance, call our Techline at 1-877-ARMSTRONG.

Summary of content (4 pages)

PAGE 1
HOW TO INSTALL YOUR SUSPENDED CEILING We are constantly working to improve our instructions with learnings from customers like you. For the most up-to-date instructions, please visit ceilings.com/installation. If you need additional guidance, call our Techline at 1-877-ARMSTRONG. Safety Tips ■ See Warning statements elsewhere on this document. ■ Work Site Environment: Initially there may be a potential adverse impact on indoor air quality within the general work area during the installation process.
PAGE 2
THREE EASY STEPS TO INSTALL YOUR CEILING STEP 1 Install Wall Molding Outside Corner B C C Inside Corner C Use Main Beam instead of Wall Molding A 1. Mark height desired for new ceiling (A). 2. Add height of Wall Molding and mark a level line around 3 walls (B). 3. Snap a connecting chalk line on the 4th wall. 4. Nail Wall Molding to the wall studs (C). 5.
PAGE 3
THREE EASY STEPS TO INSTALL YOUR CEILING Joist B A B illus. C C D illus. A Snap- In Cross Tee B illus. B Hook- In Cross Tee illus. D Hang First Main Beam 1. Stretch a guide string from one end of the room to the other below the molding where the first main beam will hang (A). (illus. A) 2. Place the cut end of the main beam on the wall molding and insert a hanger wire in a hole near the other end of the main and wrap the wire around itself three times. 3.
PAGE 4
THREE EASY STEPS TO INSTALL YOUR CEILING 2' x 2' Installation 1. If you are using 2' x 2' panels, you need to lay out your grid differently. 2. Determine the size of your border panels from side to side. 3. Place the first main beam the border panel distance plus 2 feet from the wall. 4. Cut 4 cross tees to the wall and insert 2' cross tees between the 4' cross tees to establish the border panel openings. 5. Your main beams will then fall on 4' centers from that point.