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Window frame materials

Material Used for Window Frames

A variety of materials are used for window frames such as metal frames, timber frames, vinyl frames, composite frames, fibreglass frames, etc. Each material has its own pros and cons and is suitable as per location, climate, aesthetics, function, and style.

Metal Frames

PROS

  • Light, strong material
  • Maintenance-free
  • Corrosion-resistant
  • Does not warp or shrink as wood does
  • Does not require painting as it is powder-coated in the factory.

CONS

  • Conduct heat rapidly -a poor insulating material
  • Prone to rusting for a few types of metals
  • To reduce heat flow, metal frames should have a thermal break – an insulating strip

Timber Frames

PROS

  • Soundproof provides insulation, strength and security
  • Durable and lasts for years
  • Eco-friendly material

CONS

  • Care should be taken by sealing to prevent from absorption of moisture
  • May sag over time as per differential atmospheric conditions
  • Affected by termites unless care is taken

Vinyl/PVC Frames

PVC window frames are made of polyvinyl chloride and mostly preferred as it is fire resistant

PROS

  • Economical and durable
  • Light in weight and easy to install
  • Resists damage by termites
  • Weather and moisture resistant

CONS

  • Weak than aluminium/steel
  • High coefficient of thermal expansion
  • Not resistant to UV light
  • To make them thermal resistant, window frames are filled with insulation.

Composite Frames

Consists of composite wood products, such as particleboard and laminated lumber mixed with polymer plastics

PROS

  • Better moisture resistance than conventional wood.

Fiberglass Frames

PROS

  • Durable and resistant to extreme climate conditions.
  • Elegant and classy
  • Energy efficient
  • Have air cavities that can be filled with insulation

CONS

  • Expensive than standard wood

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