BUILDING BOARDSBUILDING BOARDSMary Ann Venturina Bulanadi

The term building board is a very general term which covers a wide variety of materials. Building boards can be made of wood, compressed sawdust or vegetable fibre gypsum plaster etc.

TYPES OF BUILDING TYPES OF BUILDING BOARDSBOARDSPlywoodHardboardInsulating fiberboardChipboardParticle boardGypsum boardStraw boardAsbestos-cement boardCorkboardPaperboard

PLYWOODPLYWOOD a type of manufactured wood made from thin

sheets of wood. The layers are glued together so that adjacent

plies have their wood grain at right angles to each other for greater strength. There are usually an odd number of plies, as the asymmetry makes the board less prone to warping.

A common reason for using plywood instead of plain wood is its resistance to cracking, shrinkage, twisting/warping, and its general high degree of strength.

SIZE:◦ US: 4’ by 8’◦ Metric: 1220mm. by 2440mm. The most common

thicknesses are 4, 6, 9 and 12 mm. 

Types of PlywoodTypes of PlywoodTropical plywood

◦usually made of Meranti or mixed species of tropical wood in the Asian region. boasts its superiority over softwood plywood due to its density, strength, evenness of layers, and high quality. It is the most preferred choice for construction purposes in many regions.

Types of PlywoodTypes of PlywoodSoftwood plywood

◦usually made either of Douglas fir or spruce, pine, and fir (collectively known as spruce-pine-fir or SPF), and is typically used for construction and industrial purposes.

Types of PlywoodTypes of PlywoodHardwood plywood

◦ used for some demanding end uses. Birch plywood is characterized by its excellent

strength, stiffness and resistance to creep. It has a high planar shear strength and impact resistance, which make it especially suitable for heavy-duty floor and wall structures. Birch plywood has excellent surface hardness, and damage- and wear-resistance.

Oriented plywood construction has a high wheel-carrying capacity.

Types of PlywoodTypes of PlywoodDecorative plywood

◦ Usually faced with hardwood, including red oak, birch, maple, lauan (Philippine mahogany) and a large number of other hardwoods.

• Special purpose plywood– like  aircraft plywood and marine

plywood.

HARDBOARDHARDBOARD  also called high-density fiberboard, not

to be confused with Hardwood.  a type of fiberboard, which is an engineered

wood product. It is similar to particle board and medium-density fiberboard, but is denser and much stronger and harder because it is made out of exploded wood fibers that have been highly compressed. 

 It is used in construction and furniture. Hardboard is produced in either a wet or dry process. 

INSULATING FIBERBOARDINSULATING FIBERBOARD It is a rigid, organic insulation board composed of wood,

cane or vegetable fibers mixed with various types of fillers and binders. The insulation may be either asphalt impregnated or asphalt coated to enhance its moisture resistance. 

Fiberboard insulation is only available in flat boards in 24" x 48", 48" x 48", and 48" x 96" sizes. The common thicknesses of fiberboard insulation are 1/2" 1", 1 1/2" and 2", although not all thicknesses are available from all manufacturers. Fiberboard insulation is also available in two densities, normal (Grade 1) and high (Grade 2).

CHIPBOARDCHIPBOARDGluing together wood particles with an

adhesive, under heat and pressure makes chipboard. This creates a rigid board with a relatively smooth surface. Chipboard is available in a number of densities: -normal, medium and high-density.◦ Normal density is fairly soft.◦ High-density is solid and hard.

PARTICLE BOARDPARTICLE BOARD is an engineered wood product

manufactured from wood particles, such as wood chips, sawmill shavings, or even saw dust, and a synthetic resin or other suitable binder, which is pressed and extruded.

Particleboard is a composite material.

Particleboard is cheaper, denser and more uniform than conventional wood and plywood and is substituted for them when appearance and strength are less important than cost.

GYPSUM BOARDGYPSUM BOARDGypsum board is widely

used for internal walls and ceilings by the construction industry, and is a material of growing importance in the do-it-yourself sector.

It is manufactured by calcining gypsum into plaster, making a slurry from the plaster, and passing the slurry through machines which shape, set, and cut into a board.

STRAWBOARDSTRAWBOARD  A kind of structural insulated

panel (SIP) designed to replace 2x4 stud and drywall construction for both interior and exterior walls, as well as provide load and non-bearing ceilings, roofing, doors, flooring, and prefabricated buildings.

These environmental friendly, solid panels are made of all natural fibrous raw materials, mainly wheat and rice straw.

ASBESTOS-CEMENT ASBESTOS-CEMENT BOARDBOARD

A dense, rigid, board containing a high proportion of asbestos fibers bonded with portland cement; resistant to fire, flame, and weathering; has low resistance to heat flow. Used as a building material in sheet form and corrugated sheeting. 

CORKBOARDCORKBOARDA construction and insulating

sheet material made of compressed and baked granules of cork.

PAPERBOARDPAPERBOARDa 'vegetable-fibre web' formed

from a water suspension.Paperboard is generally thicker

(usually over 0.25 mm/0.010 in or 10 points) than paper.

References:References: http://www.icipaints.co.uk/support/specifications/prep/

substrates/walls/boards.jsp http://en.wikipedia.org/wiki/Plywood http://en.wikipedia.org/wiki/Hardboard http://www.benchmark-inc.com/searcharticles/articles

/Perspective%20Articles/issue46b.html http://www.design-technology.org/chipboard.htm http://en.wikipedia.org/wiki/Particle_board http://www.borax.com/pdfs/gypsum.pdf http://blog.greenhomebuilding.com/2008/06/

strawboard-panels.htm http://www.answers.com/topic/asbestos-cement-

board-asbestos-cement-wallboard-asbestos-sheeting-1

http://www.answers.com/topic/corkboardBayona, Jeddalie P. 2ID2