Metalseal vs Liquasil Lite: Choosing the Right Roof Coating System
Metalseal and Liquasil Lite are both silicone-based roof coating systems designed for the refurbishment of industrial roofs.
However, they are intended for different types of projects and should not be considered interchangeable.
Metalseal is a specification-led system suited to projects requiring certification, long-term performance, and controlled application, whereas Liquasil Lite is a practical, cost-effective solution typically selected for contractor-led or dilapidations-driven refurbishment works.
The appropriate choice depends on the condition of the roof, the objectives of the project, and the level of assurance required.
Metalseal
Metalseal is typically specified where a fully controlled and certified refurbishment approach is required.
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- BBA Approved
- 25-year system guarantee
- Designed for specification and dilapidations projects
- Includes cut edge corrosion treatment as standard
- Installed by approved contractors under controlled conditions
Liquasil Lite
Liquasil Lite is typically used where a practical, cost-controlled approach is more appropriate, particularly in dilapidations and contractor-led projects.
- Non-BBA system
- Cost-effective alternative where certification is not required
- Suitable for metal and asbestos roofs
- Simple, accessible application
- Available for contractor-led refurbishment works
Criteria
The selection of an appropriate system depends on the condition of the roof and the objectives of the project.- Primary Use
- Positioning
- Certification
- Guarantee
- Application
- Cut Edge Treatment
- Substrate Focus
- Specification Use
- Assurance Level
Metalseal
Metalseal is typically specified where certification, control and a defined refurbishment strategy are required.- Specification-led refurbishment
- Controlled, high-assurance system
- BBA Approved & BRoof(t4)
- 25 Year system guarantee
- Controlled, approved installers
- Included as standard
- Metal roofs (refurbishment-led)
- Suitable for formal specifications & contract documents
- High (certified system, controlled application)
Liquasil Lite
Liquasil Lite is typically used where the roof remains serviceable and a practical, cost-controlled approach is more appropriate.- Contractor-led or dilapidations-driven works
- Practical, cost-effective solution
- BRoof(t4) fire rated
- Project-dependent / application-specific
- Flexible, contractor-led application
- 2 options available
- Multiple substrate types
- Typically used in open specification or value-driven projects
- Moderate (dependent on project scope and execution)
Quick Comparison: Metalseal vs Liquasil Lite
Primary Use
Metalseal:
Specification-led refurbishment
Liquasil Lite:
Contractor-led or dilapidations-driven works
Positioning
Metalseal:
Controlled, high-assurance system
Liquasil Lite:
Practical, cost-effective solution
Certification
Metalseal:
BBA Approved & BRoof(t4)
Liquasil Lite:
BRoof(t4) fire rated
Guarantee
Metalseal:
25-year system guarantee
Liquasil Lite:
Project-dependent / application-specific
Application
Metalseal:
Controlled, approved installers
Liquasil Lite:
Flexible, contractor-led application
Cut Edge Treatment
Metalseal:
Included as standard
Liquasil Lite:
2 options available
Substrate Focus
Metalseal:
Metal roofs (refurbishment-led)
Liquasil Lite:
Multiple substrate types
Specification Use
Metalseal:
Suitable for formal specifications & contract documents
Liquasil Lite:
Typically used in open specification or value-driven projects
Assurance Level
Metalseal:
High (certified system, controlled application)
Liquasil Lite:
Moderate (dependent on project scope and execution)
The selection of system should be based not only on performance, but on the level of assurance required for the project.
When Metalseal is typically appropriate
- Projects requiring third-party certification
- Dilapidations or formal refurbishment schemes
- Long-term asset management strategies
- Where defects extend beyond surface-level corrosion
- Where specification control and risk management are critical
When Liquasil Lite is typically appropriate
- Budget-driven refurbishment projects
- Contractor-led works
- Where certification is not required
- Where corrosion is limited and visible
- Shorter-term or pragmatic maintenance strategies
Key Consideration
The critical factor in selecting a coating system is whether the roof remains structurally sound, and whether the level of assurance provided by the system aligns with the requirements of the project.
👉 For an example of how corrosion can progress and influence specification decisions, see:
Progression of Underside Corrosion at Mid-Lap
Next Steps
If you are unsure which system is appropriate, correct assessment of the roof condition is essential before specification or application.
👉 Speak to Liquasil for Technical Guidance
👉 Book Metal Roof Defects CPD