Passive Purple Sets Retrofit Airtightness Benchmark at Dudley College

Transforming Education Buildings: Airtight Upgrades at Dudley College

Overview

In a deep retrofit of a 1950s building at Dudley College, Intelligent Membranes delivered a high-performance airtight upgrade using Passive Purple Liquid Vapour Control Membrane. By integrating modern airtightness solutions into the existing structure, the project significantly improved energy efficiency, indoor comfort, and sustainability.

Project Background

Located on the college’s Broadway campus, this facility underwent a sensitive retrofit aligned with sustainability goals. After repairing damaged bricks and mortar and closing redundant windows, Passive Purple Brush was applied around service penetrations and gaps. This ensured airtightness at vulnerable junctions before the liquid membrane application. NBS Manufacturing+2NBS Source+2YouTube+7intelligentmembranes.com+7barbourproductsearch.info+7

Airtightness Solution

Once detail sealing was complete, the Passive Purple Liquid Vapour Control Membrane was sprayed across all external walls, creating a seamless, airtight, and smoke-tight barrier before external wall insulation was installed. This modern construction methodology future-proofs the envelope at its core. intelligentmembranes.com

Results That Matter

The project achieved an impressive 0.91 ACH (air changes per hour), far surpassing typical UK Building Regulation targets of 5.0 ACH for new builds. Given that Passive Purple was deployed independently of window or façade installations, this result is industry-leading for a retrofit of this age. intelligentmembranes.com+7intelligentmembranes.com+7barbourproductsearch.info+7

The membrane not only enhanced energy efficiency and reduced heat loss but also elevated occupant comfort, air quality, and fire safety standards.

Why It Resonates

• Retrofit-Friendly Accuracy: Tackles the complex, irregular junctions of older buildings with a precise and durable solution.
• Compliance-Driven Performance: Delivers measurable airtightness improvements in line with modern MMC best practices.
• System Integrity: Ensures airtightness continuity even before other envelope improvements are applied.