Weatherproof Membrane

Weatherproof Protection for Buildings

A weatherproof membrane restricts the movement of warm, moist air from inside a property into the fabric of the building.

Our Passive Purple and other liquid weatherproof membranes are applied with an airless sprayer or roller and dries to an airtight flexible coating. With excellent adhesion on different surfaces, such as concrete, brick and wood, our Passive Purple breathable vapour control products can be used on all wall and floor connections and joints.

Weatherproof your building today with Intelligent Membranes! Shop our full range below.

Our liquid membranes and vapour control layer products provide unmatched weatherproof protection for your building. Cost-effective, easy to apply, VOC-free and extremely tough, our breathable vapour control gives your external facade complete UV and weather protection.

Used for retrofits, new builds and large scale construction projects, our liquid-applied membranes protect your structure from various weather conditions. Proper weatherproofing not only prevents moisture from damaging the facade of your building, but also decreases overall deterioration.

If you require more information about our products, don’t hesitate to get in touch with our team.

Why Do I need a Weatherproof Membrane?

Interstitial condensation is the enemy of any homeowner. If interstitial condensation exists, it can lead to mould and rot . A weatherproof membrane keeps the movement of warm, moist air into the fabric of a building to a manageable level so condensation doesn’t build up and cause harm to the building.

Stay Updated With Our News & Insights

Our blog section will detail the most update to date information on current and future eco-continuous building solutions.
View Our Blog
“Building a Sustainable Hospital: Passive Purple Airtight Membrane Meets MMC Precision”

Posted on 20th August 2025

Building the Future of Healthcare: Passive Purple Airtightness for a Modular New-Build...
Read More
“Why IM Fleece Airtight Tape is the Best Choice for Retrofit Airtightness, Window Sealing, and Passivhaus Projects”

Posted on 19th August 2025

Why IM Fleece Airtight Tape is the Installer’s Secret Weapon for Airtightness...
Read More

Cookie	Duration	Description
cookielawinfo-checkbox-analytics	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional	11 months	The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy	11 months	The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.

Brick Sealer Sample

Weatherproof Masonry Damp Proof Paint

Passive Purple External Airtight Fire Rated Façade Waterproofing Membrane (10kg) – Spray / Roller

Passive Purple X (10kg) – Spray/Roller

Passive Purple External Airtight Fire Rated Façade Waterproofing Membrane (5kg) – Brush

Passive Purple External Brush Pack

Passive Purple X (5kg) Brush Applied

Weatherproof Protection for Buildings

“Building a Sustainable Hospital: Passive Purple Airtight Membrane Meets MMC Precision”

“Why IM Fleece Airtight Tape is the Best Choice for Retrofit Airtightness, Window Sealing, and Passivhaus Projects”