How to Render Lightweight Polystyrene Cladding by JPS Coatings

Render application enhances the visual appeal of any residential or commercial complex. It also protects the structure from premature deterioration caused by natural elements like UV rays, frost, rain and wind. Traditional render application uses a mixture of sand, lime and water to create a paste-like substance for rendering internal or external concrete wall structures.

Rendering Lightweight Polystyrene Cladding with JPS Coatings Polyboard
JPS Coatings in-depth knowledge and experience in the building and construction sector have positioned them front and centre in developing effective materials to improve on the industry standards.

The secret to achieving the best rendering results is thorough mixing of materials, correct thickness application and waiting patiently for the curing time. Polyboard Render is a premixed; cementitious base coat manufactured to offer excellent adhesion to low absorbency substrates like expanded polystyrene sheets.

1. Prepare all the necessary materials needed in rendering application.

2. Make sure that the substrate is clean, dry and free from all forms of powdery or oily residue that can affect the adhesion of Polyboard render.

3. Start preparing the mixture by pouring the 20 kg bag of Polyboard render into a clean and dry bucket. Pour in 5 to 5.5 litres of clean water into the bucket and mix until the desired lump-free; thick consistency is achieved. The amount of water may slightly vary, but it should not exceed 5.5 litres for every 20 kg bag of Polyboard render. Excess water mixture can lead to surface crazing, delamination and cracking. Let the mixture settle for 5 to 10 minutes, then remix.

4. Using a trowel and hawk, apply 2mm to 6mm thick Polyboard render mix to the lightweight polystyrene cladding sheets starting from the bottom moving upwards. Make sure not to overwork the area. For best results, apply the mixture in 4mm to 6mm layer thickness range.

5. Polyboard render dries in 2 to 8 hours, at 25°C and with 50% relative humidity. Curing time might take longer for lower temperatures or higher relative humidity. The lightweight polystyrene cladding can be overcoated with the desired texture coating after 7 days.

Aside from the large selection of rendering products, tools and accessories, JPS Coatings manufactures a high-quality brand of lightweight polystyrene cladding to match the high demands of the Australian climate and building environment.

Cova-Wall® is a reinforced, lightweight polystyrene cladding made to a complete a cavity or direct fix system of expanded polystyrene sheets, base coat, fibreglass mesh and finishing coat trowelled on top of the fibreglass mesh. The lightweight polystyrene cladding offers a smart alternative to traditional cladding and insulation materials.

The Cova-Wall® lightweight polystyrene cladding system provides the following advantages:

1. The lightweight quality of Cova-Wall® makes it easy to transport, handle and install.

2. Cova-Wall® offers an effective energy saving method because of its inherent thermal properties and high insulation values.

3. It is made with inert expanded polystyrene sheets that are resistant to water or vapour absorption; vermin attack and mould and mildew proliferation.

4. Cova-Wall® is reinforced with fibreglass mesh - offering excellent tensile and compressive strength. The lightweight polystyrene cladding provides structural support against impact resistance.

5. Cova-Wall® is a versatile material that can be attached to any type of wall substrate. It can also be topped off with the required textured coating to meet any design and project specifications.

For more than 33 years, JPS Coatings has been providing homeowners and industry specifiers like you; a world-class selection of rendering and cladding materials that fit the domestic, commercial specifications. JPS Coatings team of experts can provide all the information you need about rendering on lightweight polystyrene cladding application.

Send us your enquiry, or give us a call at 03 9357 6644 or just visit the website at www.jpscoatings.com.au today.