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Building materials

A complete guide to

Render with isulation

Insulation work should be carried out in favourable weather conditions. The substrate and ambient temperature during installation and during the drying of the individual materials should be between +5°C and +25°C, relative air humidity below 80%.

1. Substrate preparation

Before insulation works commencement, it is essential to examine the technical condition of the façade (substrate), with special attention paid to load capacity of the substrate, its humidity and evenness.

Prime the substrate with ATLAS UNI-GRUNT deep penetrating primer. The priming should be conducted at least 2 hours before the insulation application. This should be applied using either a roller or a brush. ATLAS UNI GRUNT coverage rate is 1kg/10m2, with a drying time of 2 hours per coat.

£24.99 - incl. VAT
£16.49 - incl. VAT
£14.99 - incl. VAT

2. Starter/ Base Track Installation

Our aluminium Starter Tracks create a solid base for insulation EPS boards to be installed onto the wall. They have to installed into the wall above the DPC. Starter Tracks can accommodate different thicknesses of insulation from 20mm to 100mm.

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In our offer you can apply CLIP ON or DOUBLE TAPE PROFILES with mesh into STARTER TRACK.

3. Installation of EPS Insulation Boards

The thickness of thermal insulating material should be in accordance with the technical design and selected individually for each wall of the building, based on the calculated overall heat transfer coefficient U, amongst others.

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Mix the mortars with suitable amount of clean water. It is best to mix it mechanically, using a drill with a mixer. It is not recommend to add amount of water different than given in the technical data sheet, as it decreases the mortar durability.

It is applied to the panel surface in strips and dabs. The strip of adhesive applied along the panel perimeter should be at least 3 cm wide. Apply 6 – 8 dabs of adhesive, ca. 8 ÷ 12 cm in diameter, distributed evenly on the remaining surface. The adhesive applied to the panel should cover at least 40% of its surface (60% after application and pressing)

When installing EPS insulation boards, we highly recommend you use Adhesives in bags or Ceresit CT84 FOAM ADHESIVE. Coverage of 5m2 for a 25kg bag or up to 10m2 from Foam adhesive.

£16.79 - incl. VAT
£15.90 - incl. VAT
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4. Mechanical fixings (anchors)

We recommend that a minimum of 2 fixings should be installed for each panel (at least 4 ÷ 5 for 1m2). The fixings are available in a wide range of lengths to accommodate different thicknesses of insulation, but we recommend the fixing is 60mm longer than the thickness of the insulation to ensure it gets a decent hold in the brick or block. The fixing should not stick out of the insulation.
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5. PROFILES and BEADING

The final step in this process is to apply the render once the CERPLAST quartz primer has dried. We offer render in 1 and most popular 1.5mm grain size.

it is possible to choose a particular colour from the ATLAS PATTERN OF COLOURS – 400 for acrylic, 256 for silicate-silicone and 480 for silicone render. Render should be applied using a trowel. Any excess render should always be removed. Use a plastic float to apply the render in a circular motion to achieve your desired finish. Coverage for renders are 9-10m2 per 25kg
£5.19 - incl. VAT
£4.99 - incl. VAT
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£3.49 - incl. VAT
£3.99 - incl. VAT

6. Reinforced layer

The reinforced coat consists of a glass fibre mesh embedded in a coat of adhesive. The mesh has an appropriate mechanical strength, a uniform and strong weave, and a high resistance to alkali. The installation of the reinforcing coat should be commenced no earlier than 2 ÷ 3 days after the installation of insulating panels. Coverage rate for basecoat – 25kg bag covers 5m2 Coverage rate for fibreglass mesh – one roll covers 50m2
£56.70 - incl. VAT
£14.79 - incl. VAT
£12.99 - incl. VAT
£15.90 - incl. VAT
£14.79 - incl. VAT

7. Priming the Basecoat

Next step should be to prime the basecoat with BONDING QUARTZ PRIMER. The render primer prevents the penetration of impurities from the adhesive into the render, protects and reinforces the substrate and, above all, increases the bond strength between the render and the substrate. Besides, the render primer can act as a temporary protection of the reinforced coat (until the render is applied) for up to six months from its installation Primer can be applied with a brush or roller. Coverage for CERPLAST QUARTZ PRIMER is 15m2 for 5kg or 45m2 for 15kg
£64.68 - incl. VAT
£39.39 - incl. VAT

8. Rendering coat

The final step in this process is to apply the render once the CERPLAST quartz primer has dried. We offer render in 1 and most popular 1.5mm grain size.

it is possible to choose a particular colour from the ATLAS PATTERN OF COLOURS – 400 for acrylic, 256 for silicate-silicone and 480 for silicone render. Render should be applied using a trowel. Any excess render should always be removed. Use a plastic float to apply the render in a circular motion to achieve your desired finish. Coverage for renders are 9-10m2 per 25kg
PLEASE SEE OUR DETAILED CODE OF PRACTICE ARTICULE

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