Property Futures

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Building Materials: Caulk

Article: uses of caulk as a building material.

Caulk is a waterproof sealant and filler that can be used in building or repair work, mainly serving the purpose of making materials watertight. It can be used to make a structure secure against leakage, and often uses waterproof material such as oakum or pitch.

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Caulk can refer to the substance itself, but the term caulking has been spread to such an extent that today it means the activity of closing up joints and gaps in buildings. Caulk used in construction work is usually a ready mix of chemicals ranging from silicone, polysulfide, polyurethane, to sylil-terminated-polyether and acrylic sealant.

Why use caulk?

  • Affordable
  • Non-paintable
  • Durable
  • Energy efficient
  • Low carbon print
  • Available

What is caulk used for?

  • Thermal insulation
  • Control water penetration
  • Noise mitigation
  • Chemical sealing

The application of caulk in construction is different than in sealing because once constructed, hardly any movement is expected from the structure. The sealant however needs to cover expected movement up to 25% to 50% of the joint’s width, and is therefore made up of elastomeric material. In rare cases, these sealants may be made to be paintable.

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This entry was posted on May 20, 2013 by in construction and tagged , , , , , , .

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