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PGP Platering Wet Area

Wet-Area Plastering and What You Need to Consider

October 11, 2019

To protect the structural integrity of buildings, in addition to fire and acoustic performances which we’ve previously discussed, the Building Code of Australia (BCA) also includes waterproofing requirements for plastering wet area walls and ceilings.

The BCA performance based code that contains the requirements for wet area plastering of buildings in Australia is published by the Australian Building Codes board. Typical applications of water resistant plastering are for areas in which moisture and humidity is present, such as:

  • Showers and change rooms,
  • Restrooms,
  • Laundries,
  • Kitchens,
  • Hospital ward bathrooms, and
  • Soffits

The requirements for waterproofing wet areas in commercial buildings (Class 2 – 9 Buildings) can be found in Part F.17 of the Volume 1 of the BCA, which stipulates the areas in which waterproofing is required and the water resistant materials that are to be installed in those areas.

In order to satisfy the regulatory requirements, plasterboards that are specifically designed for lining in wet areas must be installed. The core and surfaces of the plasterboards are treated to have moisture and water resistance without compromising integrity. Special additives are used to enhance the moisture resistance of cores, which permeate to the face and back of the plasterboard to deliver the required performance in high humidity and wet area applications. The core and surfaces undergo stringent testing to achieve such results:

  • Submerging the plasterboard sample in water for two hours for core water resistance testing.
  • Weighing the plasterboard sample before and after the surface exposure to water for surface water resistance testing.

Moisture resistant boards with additional properties can also be used to meet applications in areas which require further fire and acoustic performance. Other variations include antifungal moisture resistant plasterboards for mould prevention, especially in areas with asthma and allergy sufferers such as in schools, hospitals and aged care facilities. Water resistant plasterboards are also suitable as a stable substrate for tiling due to very low water absorption features and are not subject to moisture movement. Waterproofing with moisture resistance boards are often supplemented with wet area base coats and acrylic sealant to reinforce and ensure the performance of the overall system.

PGP Plastering is passionate when it comes to providing quality plastering work, including wet area installations and providing workmanship which satisfies the requirements as set out by the BCA, using only the highest quality materials that meet stringent testing standards. Our knowledgeable and professional team of experts will work closely with you throughout the project to achieve a smooth and successful commercial plastering installation, on time and on budget.

Contact PGP commercial plastering companies to discuss how we can assist with your commercial plastering needs. Call us on 1300 633 403 today.

Reference:

https://www.gyprock.com.au/solutions/wet-areas

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PO Box 519
Tugun, Queensland 4224
Australia
Phone: 1300 633 403
Email: admin@pgpplastering.com
ABN: 86 152 283 980
QBCC Licence number: 1306234

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