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SuperFOIL products applied to an external solid wall

EXTERNAL SOLID WALL
APPLICATIONS

You can protect and insulate the external walls of your project with SuperFOIL’s W1 watertight and breathable multifoils. It offers higher functionality, moisture protection, improved space optimisation, and the ability to install up to twice as fast compared to traditional insulation types.

Application Instructions

To insulate the external wall, attach horizontal battens of the correct size at a maximum of 600mm centers, placing them at the top, bottom, and around doors or windows. Apply SuperFOIL horizontally to the battens with the built-in overlap pointing towards the floor, starting at the bottom and working upwards. While horizontal installation is recommended for added protection, it can be installed vertically with no adverse effects if necessary. If applying vertically, start at the highest point and roll the product down.

When fitting the insulation, keep the product taut while stapling at intervals of 50mm-100mm. Cut SuperFOIL to the required length, utilizing the built-in overlap and tape for a sealed finish. Trim the SuperFOIL at the floor and top of the area, allowing for a small overlap. Secure the product by fixing battens around the perimeter, creating an airtight finish. Ensure all tears or cuts are sealed fully using SuperFOIL Butyl tape or another suitable waterproof tape to achieve an airtight finish.

To complete the installation, add vertical counter battens of the correct size on top of the SuperFOIL to create an air gap. Fix the external finish onto the battens following the manufacturer’s recommendations, ensuring no section of SuperFOIL is exposed to the elements (should be covered within 48 hours after fitting).

For a more comprehensive guide to properly installing SuperFOIL products in an External Solid Wall application, we’d encourage you to download our complete installation guide, for free, by clicking the button below.

Best Products for External Application

Choose your Solution

Use the charts below to find the ideal solution for your project

SELECT VARIABLE

THERMAL PERFORMANCE
PRODUCT DIMENSIONS
ESSENTIAL CHARACTERISTICS
PRODUCT COMPOSITION
Specification SF19BB SF40BB
Core performance 1.45 R Value 2.85 R Value
Roof Performance* 2.03 R Value 3.47 R Value
Wall Performance* 2.24 R Value 3.69 R Value
Emittance 0.19 / 0.05 0.19 / 0.05

*Core value + 2 air spaces / EN 16012

Specification SF19BB SF40BB
Thickness 40mm 75mm
Length 10m 10m
Width 1.2 / 1.5m 1.5m
Coverage 12 / 15m² 15m²
Weight 8 / 10kg 20kg
Specification SF19BB SF40BB
Reaction To Fire (Euroclass) Class F Class F
Water Vapour Resistance 0.115 MNs/g 0.115 MNs/g
Resistance To Water Penetration W1 W1
Tensile Properties (Length) 135/13N/50mm 135/13N/50mm
Tensile Properties (Width) 85/20N/50mm 85/20N/50mm
Resistance to Tearing (Length) 110N 110N
Resistance to Tearing (Width) 120N 120N
Elongation (Length) 70 / 3% 70 / 3%
Elongation (Width) 60 / 5% 60 / 5%
Flexibility at Low Temp. -40°C -40°C
Specification SF19BB SF40BB
Reflective Coated Breather Membrane 1 1
Perforated Aluminium Coated Reflective Foil PET 3 8
Perforated Reinforced Heavy Outer Reflective Foil 1 1
Loft Quilt 80g/sqm Layers 4 9
Total Layers 9 19

FREE Insulation Guide

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