Erfurt Mav Red Label HeatSaver Wall Underliner Single

Heatsaver is an economical 2mm thick polystyrene liner containing fire retardants that provide basic insulation as well as combating condensation problems and subsequent mould growth for a healthier home. To create a more durable and smoother surface we recommend the surface is overlined - Wallrock fibreliner is particularly tough and strong.

This product is suitable as a localised ‘problem solver’ for cold external walls and is not recommended for use in fire escape routes inside your home unless the surface is further treated with a fire retardant covering. This product is class E fire rated and should not be used for projects such as new builds and extensions where Building regulations are applicable.

Important Safety Information

Compliance with Building Regulations; This product should not be used in isolation for projects such as new builds and extensions where Building Regulations are applicable. If used as part of a system that both adds to the insulation value and protects the surface from fire it may be compliant but expert advice should be sought.

Fire Safety; When used in isolation this product is suitable as a localised ‘problem solver’ for cold external walls and is not recommended for use in fire escape routes or on ceilings.

Fire resistance can also be improved significantly by cross lining the surface with Wallrock Fireliner applied with Wallrock Fireliner FR Adhesive.

Preparation; Surfaces painted prior to 1960 may contain lead pigments and special precautions should be taken when preparing such surfaces.