Webertherm B1 Plus
The quality and performance of base coat renders are critical to ensuring the durability, longevity, and smooth finish of thermal insulation systems. Webertherm B1 Plus is a cement-based render reinforced with polymer additives, designed for reliable use over various thermal insulation boards.
What is Webertherm B1 Plus?
Webertherm B1 Plus is a cement-based base coat render enhanced with powdered polymer additives and specifically developed for thermal insulation systems.
- Applied with reinforcement mesh over XPS, EPS, and mineral wool insulation boards
- Enhances system integrity and durability
- Complies with the ETAG 004 standard
Applications
- XPS insulation boards
- EPS insulation boards
- Mineral wool insulation boards
- Wall surfaces
- Base coat layer in thermal insulation systems
- Suitable for all building types
Note: The substrate must be sound, stable, and have adequate load-bearing capacity.
Advantages
- Complies with ETAG 004 requirements
- Excellent adhesion to insulation boards
- Resistant to thermal shock
- Easy to apply
- Creates a smooth and uniform surface
- Improves the mechanical and environmental resistance of thermal insulation systems
Application Conditions
- Ambient temperature: +5°C to +30°C
- Do not apply on weak or low-strength substrates
Required Tools
- Electric mixer
- Steel trowel
- Reinforcement mesh
Technical Application Information
- Pot life of mixed mortar: 3 hours
- Total application thickness: 4 mm
- Maximum thickness per coat: 2 mm
- Waiting time between coats: 3–4 hours
- Waiting time before final coating: Minimum 7 days
Importance in Thermal Insulation Systems
Webertherm B1 Plus serves as a key layer in thermal insulation systems where insulation boards alone cannot provide sufficient performance.
It helps to:
- Increase impact resistance
- Reduce the risk of cracking when used with reinforcement mesh
- Provide a smooth and even surface for decorative finishing coats
As a result, it is one of the essential layers that contributes to the durability and long-term performance of the insulation system.
Packaging
Frequently Asked Questions (FAQ)
Which insulation boards can Webertherm B1 Plus be applied to?
It is designed for use on XPS, EPS, and mineral wool insulation boards.
Can it be used indoors?
Yes. It can be applied to wall surfaces within thermal insulation systems, including interior applications where appropriate.
How many coats should be applied?
The total application thickness should be 4 mm, with each coat applied at a maximum thickness of 2 mm.
When can the final decorative coating be applied?
A waiting period of at least 7 days is required before applying the final finish.
Is reinforcement mesh required?
Yes. Webertherm B1 Plus should be applied together with reinforcement mesh as part of the insulation system.