Instant Quote
Best for planning, foundations, budgets and quick kit pricing.
- Instant MVHR or MEV kit estimate.
- Basic airflow calculation based on your property details.
- Automatically builds a material list and price.
- Ideal for early-stage projects.

PHS-LIQUID-MEMB
PHS Airtight Liquid Membrane is a VOC-free, water-based, flexible, fibre-reinforced polymer that offers a unique and sustainable solution for airtight construction junctions. It is suitable for both new builds and retrofits, ensuring the effective sealing of construction joints to prevent air leakage. This product is designed to provide a high level of air tightness, contributing to energy efficiency and improved indoor air quality.
VOC-Free – No harmful volatile organic compounds, ensuring better air quality during and after application
Water-Based – Environmentally friendly, non-toxic, and easy to apply
Flexible & Durable – Fibre-reinforced polymer for flexibility and long-lasting performance
Sustainable Solution – Ideal for airtight sealing of construction junctions in both new builds and retrofits
Energy Efficient – Helps in reducing energy consumption by improving airtightness and insulation
Part Number: PHS-LIQUID-MEMB
Weight: 5kg
Composition: Water-based, flexible, fibre-reinforced polymer
VOC-Free: Yes
Application: Airtight sealing of construction junctions in new builds and retrofits