False Ceiling

Materials

MATERIALS

Gypsum Board POP Glass

Acrylic PVC

Wood Acoustical Metals

Cement fiber

Gypsum Board.

Gypsum Board.

Gypsum

The Egyptians were the first to use the gypsum as a building material in the pyramids

The gypsum items possess the following important properties

1.They are incombustible 2.They possess relatively small bulk density 3.They serve as good sound absorbers

Gypsum Board Is a panel made of gypsum plaster.

It is pressed between two thick sheets of paper.

It is used to make interior walls and ceilings. 

The main reasons for gypsum board being a popular material for false ceiling are a) Ease of installationb) Fire resistancec) Sound insulationd) Durability , Economy & Versatility.

Sizes of gypsum board 4’x4’ 6’x6’ 6’x4’

Thickness of gypsum board 8mm 10mm (mostly used for false ceilings ) 12mm Upto 20 mm

Advantages Cost Quite cheaper.Easy workability Flexible in nature and is as easy to work with . Its is easy to nail ,screw and cut with ordinary carpenters and tools.

Light weight It is a light weight product with its weighting less than 500N/m2. Its light weight offers economy structural costs and transportation

Fire resistance Has the ability to retard the spread to fire .it can give fire protection upto 2hours.

Advantages of gypsum board Smooth surface Its

surface is smooth and hence any type of inferior finish such as painting ,veneering ,wall plastering etc can be easily carried out .

Time of installation Offers scope of better planning and greater control over construction schedule.

Final finish Its unique tapered edges makes it possible to join boards and provide a good finishing to the ceiling

Rate of gypsum sheet

Plaster Of Paris (P.O.P.)

Advantages.

• A smooth, uniform finish.• The surface can be recovered or painted.• Easy to construct and maintain.• The ceiling are really light.

Facts about POP.• Plaster of Paris a type of ceiling that originated from

France.• It’s a mixture of calcined gypsum (calcium sulfate

dehydrate), sand and water.• When these ingredients are mixed together and the

subsequent paste is allowed to dry, it hardens and forms a tough coating.

Facts about POP.• As tough as POP is when dry, it is still soft to be sanded and

carved.• Used majorly to create decorative molding. POP hardens

instantly when water is added to it.• It is applied to form fiber board or a wood base, which is then

suspended from the ceiling.

Preparation of POP sheets.

Size - 600x600x12 mm.

MaterialsFramework members’ materials.• Aluminum channels, Mild steel channels, Wooden

runners.• Stainless steel coated screws should be used.

L-angle.• This is important part.• Provides support to false ceiling members.• It totally depends on design.•Weight and size of the material used.• They are fixed at the places of joineries to support the members bond.

LL-Angle attaching wall and false ceiling

L-Angle attaching suspender to True ceiling.

Installation.• Fixing the framework directly on the beams

and structural ceiling.• Fixing the wall supports and angle

supports.• Fixing the suspended framework on the

supporting members.• Fixing of POP boards.

Installation.• Applying insulation.• Finishing the joints.• Edging profile.• Fixing the moldings and decorative motifs.• Final finishing with paints for desired effects.

POP Sheets.

POP Patti

Rates.

Comparison.POP

1. Cheaper but difficult installation.

2. Board size 2’ x 3’3. Requires more

framework .4. More joints.5. Heavier than gypsum.6. More possibility of

cracking.7. Harder to work.8. More messy.9. Less strength .10.Shorter life span.

Gypsum1. Costlier but easy

installation.2. Board size 3’ x 6’3. Less framework

required.4. Lesser joints required.5. Lighter than POP.6. Less possibilities of

cracking.7. Easy to work.8. No mess is created.9. More stronger than POP.10.Long lasting.

Glass

Glass

• Usual transparent glass is never used, as it contradicts the very idea of a false ceiling - to hide from the viewer's eye any defects and irregularities and other services wiring, plumbing, air conditioning systems , etc.• Frosted glass is mostly used other than back painted, stained glass, mirrors , etc.

Mirror Ceiling.

Advantages.

• Creates the illusion of depth, it makes the room visually higher.• Resist moisture and temperature fluctuations.• Easy to clean and maintain.• Suspended glass ceiling with stained-glass panels can be decorated with the image or using the ink-jet printing on special equipment, or a sticker on top of the glass transparent film with a pattern.

Disadvantages.

•Hard and brittle to cut, drill and work with.• Suspended glass ceilings are quite heavy compared to other ceiling materials.•Most dangerous if any glass tile breaks during repair works.•Not advisable in earthquake prone areas.

Floating / Cloud Effect.

Other Methods

Acrylic glass Ceiling

Acrylic glass CeilingBest alternative for Glass ceilings.

Advantages • Very easy to handle.• Doesn’t break on falling.• Inkjet printing on the panels

of frosted Plexiglas can create effect of stained-glass ceiling .

Disadvantages • Is like plastic and tends to

deform due to low melting point.• Cannot be placed near

halogen or incandescent lamp.

Acrylic glass Ceiling

Polyvinyl chloride (P.V.C.) tiles 

Polyvinyl chloride (P.V.C.) tiles

Advantages • Long term durability.• Lighter in weight.• Very easy to handle.• Doesn’t crack easily under

stress.• Doesn’t crack when being

drilled even if drilled close to the edge .

Disadvantages • Is like plastic and tends to

deform due to low melting point.• Cannot be placed near halogen

or incandescent lamp.• Cannot be polished to restore

its clarity.

Comparison.Acrylic PVC

1. Easy to work.2. Lighter than Acrylic.3. Doesn’t crack easily

under stress.4. Doesn’t crack while

working near edges.5. Cannot be polished to

restore its clarity.6. Long lasting but turns

yellow with time.7. Cannot be polished.8. More stronger than

Acrylic.9. Has low flammability10.Expensive than acrylic.

1. Difficult to work, cut and drill.2. Heavy and less flexible than

PVC.3. Cracks easily under stress.4. Cracks while working near

edges.5. Can be polished to restore its

clarity.6. Doesn’t change color with

time.7. Can be polished to attend

finishing.8. More sturdy than PVC.9. Starts burning slowly.10.Cheaper than PVC.

Cement Fiber Boards.

Cement Fiber Boards. Advantages • Long term durability.• Lighter in weight.• Very easy to handle.• Fire, moisture and

shock proof.• Good sound

absorption.• Healthy and

Environmental( No any asbestos and other harmful composition which is modern construction materials)

WoodAdvantages • Very economical.• Natural acoustical properties.• Esthetic appeal ,gives

richness to the space.• Effective for creating rustic

look.• Gives warmth to the space.

Disadvantages • Comparatively heavier than

other materials.• Lessens the visual height of

the room.• Cannot withstand attack of

pest like termites for long period.• Not recommended for damp

spaces or leakage prone areas.

Wooden Ceilings

Traditional Wooden Ceiling

Basic Materials.• The material used in false ceiling is made of up either hard wood or MDF or particle board.• In MDF mica is used to glue the either sides of the board.•Using solid wood is not recommended because it is heavy.• The one on the inner side of the board is known as “balanced surface”.• The on the external side i.e. the visible surface is known as the “finished surface”.•Where as the wood gives the natural finish when polished.

WOOD MOLDING• Also known as wood molding or patti or trim is used as an enhancing accent in a home.• Before the 19th century, the presence of wood molding in once home was a symbol of wealth & taste.• Nowadays, wood molding frequently used to conceal the seam where a window or door coverage with the wall or to draw attention to the transition from the floor or to the ceiling to the wall.

RATES

Wooden Ceiling Types

Sound tube Ceiling (Acoustical)

Wooden Batten Ceiling

Wooden Linear Ceiling

Wooden Coffer Ceiling

Wooden Ceiling framework

Installation Method

Installation Of Timber Suspended Ceiling:• Grid system is formed with the help of wooden joists.• Modular grid size 400x600mm• Grid system is supported by hanger wire & wooden screws• Each cell is filled with lightweight “wooden panels" which simply drop into the grid. 

Description of the material1 Cement Board Indoor2 Insulation material coat3 Batten and lath framework 400/600 mm4 Maxi Screw7 Joint Filler –14 fire protection plate GKF, 12.5 mm21 Direct hanger27 Dividing strips28 Filling29 Expansion joint (15-20mm gap)

Expansion joint

Direct fastening under solid ceilings

Connection to solid walls

Direct fastening under wooden

ceilings

Acoustic Board • Board made of sound absorbing materials. • Its job is to provide sound insulation.•  Ceiling is porous. • When sound passes through an acoustic board, the intensity of sound is decreased. • The loss of sound energy is balanced by producing heat energy. • Used in auditoriums, halls, seminar rooms, libraries etc

Installation Method.

Metals

Traditional Metal Ceiling

MetalsAdvantages• Slick appearance• Long term durability• Fire and water resistant• Acoustical performance

achieved through perforation• Minimal maintenance• Enhances internal air flow .

Disadvantages• Expensive• Less light reflectivity.

Curved Metal Ceiling.

Installation

Installation MethodInstallation Of Steel Suspended Ceiling:• Steel structure of suspended ceiling is composed of grids•Grid system is supported by hanger wire•Each cell is filled with lightweight “panels" which simply drops into the grid. Abbreviation

:1.Primary

profile 2.Secondary

profile3.Fixing hooks4.Connector5.Hanger 6.Hanger

wires

APPLICATION :I. Primary & Secondary profile :

60x27mm Application : Used as Grid.II.Connector: 27x61.5x100 mm Application: To connect two

profilesIII.Fixer: 50x58x0.8 mm Application: Fixes secondary

profile to primary profileIV.Hangers / Hanger wires (dia 6mm):

90x58x1.5mm Application: Fixes primary profile

to ceiling

Installation Methods

Batten Ceiling Details

Installation Method

Installation Of Aluminum Suspended Ceiling:• Aluminum structure of suspended ceiling is composed of grids•Grid system is supported by hanger wire & cleats•Each cell is filled with lightweight “panels" which simply drops into the grid. 

‘L’ Channel

Cross Tee

Main RunnerHanger Wire

Double Clip

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