false ceiling materials
TRANSCRIPT
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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