The Erfurt Heatsaver Wall Underliner is an economical 2mm thick polystyrene liner designed to improve insulation and reduce condensation and mould growth. It contains built-in fire retardants for added safety and can be overlined with Wallrock for a more durable and smoother finish. Its lightweight design and ease of application make it ideal for both domestic and commercial settings.
Key Features & Benefits:
-
Thermal Insulation – Helps to reduce heat loss and improve energy efficiency.
-
Condensation Control – Reduces the risk of mould growth and damp issues.
-
Fire Retardant – Contains fire retardants for added safety.
-
Lightweight and Easy to Apply – Simple installation with a ready-mixed adhesive.
-
Smooth Finish – Can be overlined with Wallrock for a more durable surface.
- Cost-Effective – Provides basic insulation at an affordable price.
Product Specifications:
Product Name | Dimensions | Coverage | Thickness | Weight | Material | Application | Finish |
---|---|---|---|---|---|---|---|
Erfurt Heatsaver Underliner | 10m x 0.5m | 5.0m² | 2mm | 500g | Polystyrene with fire retardant | Interior walls and ceilings | Smooth, overline with Wallrock |
How to Use:
- Surface Preparation: Ensure the wall is clean, dry, and free from debris.
- Apply Adhesive: Use a good-quality, ready-mixed adhesive suitable for polystyrene veneer.
- Position the Liner: Cut to size and apply to the wall, aligning carefully.
- Smooth Out: Use a wallpaper roller to remove air bubbles and ensure proper adhesion.
- Overlining (Optional): For a more durable finish, apply Wallrock or a similar lining paper over the top.
Frequently Asked Questions (FAQs):
1. Can this product be used on ceilings?
- Yes, it's suitable for both walls and ceilings.
2. Can it be painted over?
- Yes, but it's recommended to overline with Wallrock for a smoother and more durable surface.
3. Does it help with sound insulation?
- While primarily designed for thermal insulation, it may offer some minor sound reduction.
4. Is it suitable for damp areas?
- Yes, it helps combat condensation but ensure proper ventilation to prevent moisture buildup.
Why Choose Erfurt Heatsaver Wall Underliner?
- Affordable Solution – Provides insulation and condensation control at a low cost.
- Fire Retardant Protection – Added safety with built-in fire retardants.
- Easy Installation – Lightweight and easy to handle.
- Versatile Application – Suitable for a variety of wall and ceiling surfaces.
The Erfurt Heatsaver Wall Underliner – a cost-effective and easy-to-install solution for improved insulation and condensation control.

