150mm Stylite Plustherm Grey EPS 70 Board

150mm Expanded polystyrene (EPS) insulation boards deliver exceptional thermal performance for external wall insulation systems. These high-quality boards substantially boost building thermal efficiency, lower U-values, and minimise water ingress and condensation risks. The 150mm thickness works seamlessly with timber, masonry, system-built properties, tile hanging, and numerous rendering options. Installation is straightforward using adhesive and mechanical fixings on masonry or timber-backed walls, with cavity wall applications also supported.

150mm Stylite Plustherm Grey EPS 70 Insulation Board remains the preferred choice for external wall insulation systems, offering outstanding value without sacrificing performance. Selecting this cost-effective 150mm EPS board delivers excellent savings whilst maintaining superior thermal qualities.

Installation costs drop significantly when using 150mm EPS within an EWI system. The material's lightweight nature requires only lower-strength adhesive and plastic fixings rather than metal alternatives. Since 150mm Stylite EPS is non-breathable, you can apply economical thin coat renders like EWI-075 Silicone Render or EWI-040 Acrylic Render.

Product specification

• Brand: Stylite®
• Model: 150mm Grey EPS EWI 70
• Thickness: 150mm
• Dimensions: 1,200mm x 600mm x 150mm
• Length: 1200mm
• Width: 600mm
• Board Coverage: 0.72m2
• Pack Coverage: 5.76m2
• Weight: 13.02kg
• Weight/m2: 1.13kg
• Compressive Strength: 70 kPa
• Bending strength: >= 75kPa
• Density: 20kg/m3
• Thermal Resistance: 0.66m2K/W
• Thermal Conductivity: 0.032W/mK
• Grades: EPS 70 & Plustherm
• Edge Profile: Plain edge profile
• Colour: Grey ǀ Graphite
• Material: Expanded Polystyrene
• Profile: Square Edge
• Application Temperature: from +5 °C to +25 °C
• Applications: External Wall Insulation Systems
• ETA Notification: Yes
• Features: High performance thermal insulation board
• Manufacturer: SPI Stylite Styrene®

Typical Applications

150mm Stylite Expanded Polystyrene insulation boards provide an excellent solution for external wall insulation projects. Installation onto existing wall substrates is simple, instantly enhancing both aesthetic appeal and thermal performance. Applying insulation to the external wall surface rather than internally significantly reduces the likelihood of interstitial condensation developing within the wall structure.

Stylite 150mm External Wall Insulation board suits diverse wall constructions, including solid brick and timber frame walls. External wall insulation typically requires a rendered protective finish, with application methods varying by system type. Additionally, 150mm Stylite EWI boards work effectively in rail or drained cavity EWI configurations.

Preparation

Deploy netting on scaffolding to prevent polystyrene dispersal during windy conditions. We strongly advise using hot knives or hot wire cutters to minimise polystyrene waste, though standard knives remain an option. For best results, cut 150mm EPS insulation boards under cover to stop offcuts scattering.

EPS Insulation Application

Always follow the manufacturer's comprehensive installation guidelines when fitting EPS insulation boards, ensuring all design and application requirements are met. Start by securing EPS boards to the substrate (masonry or timber) with mortar/adhesive or mechanical fixings.

After fixing boards to an external wall, apply a protective outer layer such as mortar basecoat or netting to shield against excessive heat, moisture, and UV damage.

Before applying basecoat or mortar for fibreglass mesh, rasp or sand the board surface to create a textured finish suitable for mesh application. Once prepared, the substrate is ready for fibreglass mesh installation. Download the complete installation guide for comprehensive instructions.

EPS Insulation Storage

Verify the manufacturer's expiry date for shelf life information. Keep boards in a dry location within original packaging. Shield from intense heat or direct sunlight.

More Information on 150mm Stylite Plustherm Grey EPS 70 Insulation Board

• Manufaturer Link: 150mm Stylite EPS70
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