Epsitec – EWI (Epsitherm) – Silicone Render

Insulation:

- WBS EPS (Expanded Polystyrene) SD/FRA Grade Insulation Boards:

• 1200 x 600 mm x thickness to suit project requirements.

• Thickness: 10–300 mm+.

• K Value: 0.036–0.038 W/m²K.

- WBS Epsitherm Insulation Boards:

• 1200 x 600 mm x thickness to suit project requirements.

• Thickness: 10–300 mm+.

• K Value: 0.030-0.032 W/m²K.

- WBS Mineral Fibre Insulation Boards:

• 1200 x 600 mm x thickness to suit project requirements.

• Thickness: 30–200 mm.

• K Value: 0.038 W/m²K.

- WBS PIR Insulation Boards:

• 1200 x 600 mm x thickness to suit project requirements.

• The boards achieve a thermal conductivity (λ–value) of 0.028 W/m²K (insulation thickness < 80 mm), 0.027 W/m²K (insulation thickness 80–119 mm) and 0.026 W/m²K (insulation thickness > 120 mm).

- WBS Phenolic Insulation Boards:

• 1200 x 600 mm x thickness to suit project requirements.

• The boards achieve a thermal conductivity (λ–value) of 0.023 W/m²K (insulation thickness < 24 mm), 0.022 W/m²K (insulation thickness 25–44 mm) and 0.020 W/m²K (insulation thickness 45–120 mm).

Thermal calculations:

• Are carried out for each project to help to determine the thickness of insulation required to meet current Building Regulation requirements.

Fire Performance:

• Unless the EPSITEC External Wall Insulation System has been specified with mineral wool or phenolic as the insulant of choice, when used on multi-storey buildings, fire breaks must be incorporated into the system at every floor level above 1st floor and at each compartment wall abutment. Please refer to BR 135 ‘Fire Performance of External and Thermal Insulation for Walls of Multi Storey Buildings’; 2nd edition, 2002.

• All intumescent strips used within the EPSITEC External Wall Insulation System have a fire protection rating in excess of 60 minutes.

Fixings:

• Where mechanical fixings are required, the length, type and number of fixings into the substrate required can only be determined following an on-site pull out test.

• Secondary pinning may be required on high-rise applications. Please consult with WBS Technical Support for recommendations.

Finishes:

- Flexible Silicone & Acrylic Finishes:

• WBS flexible silicone & acrylic thincoat finishes are supplied pre-mixed and are available in 100 standard colours. Special colours and colour-matching to other manufacturer's palettes may be available on request. WBS silicone and acrylic finishes are available in four standard grain sizes in the 'K' range and two grain sizes in the 'R' range. Other grain sizes can be acquired on request.

• WBS Silicone & Acrylic systems are certified for European Technical Approval from the DIBT, Germany. ETA is an EEC wide accepted equivalent to BBA. Standard.

• WBS Silicone & Acrylic systems are BBA approved on the Epsitec system.

• Please consult with WBS Technical Support before specifying any dark colours with a lightness value of less than 20.