Services

We do not carry out condensation risk analysis ourselves — it is normally produced by your insulation manufacturer or hygrothermal assessor, and several manufacturers provide it free. What we provide is the data they need: our material properties are registered in the WUFI database, so your assessor can model the build-up with verified tested values.

• Verified material data, registered in the WUFI database
• sd-value and vapour resistance figures for your build-up
• Advice on where the vapour control layer should sit
• Free condensation risk analysis tools, listed on our condensation risk analysis page

Not sure how to achieve your airtightness target? Our technical team can review your drawings and advise on the optimal airtightness strategy, product selection and junction detailing.

• Target setting (Part L, Passivhaus, EnerPHit)
• Product selection for your construction type
• Critical junction strategy and detailing advice
• Coverage quantities and cost estimation support

For larger or more complex projects, our team can visit site to advise on substrate preparation, application conditions, and any problematic areas before application begins.

• Pre-application site visits
• Substrate assessment and preparation advice
• Application troubleshooting and quality review
• Post-application airtightness test support

RIBA-accredited CPD seminars on airtightness, vapour control, retrofit, waterproofing and fire-rated membranes. Available for architectural practices, contractor teams and building control.

• RIBA-accredited — counts towards annual CPD requirement
• In-person (your office or our showroom) or online
• 45–60 minutes, free of charge
• Topics: airtightness, Passivhaus, retrofit, fire, waterproofing

When Intelligent Membranes products are installed by an approved installer following our specification, we provide a system warranty covering material performance for the stated product lifetime.

• Available for approved installer installations
• Covers material defects and performance failure
• Applicable to Passive Purple range and Poseidon
• Documentation suitable for building warranties and insurers

We provide ready-to-use NBS specification clauses for our core products, compatible with NBS Chorus. Contact us with your project details and we'll supply the relevant clauses within one working day.

• Passive Purple Internal, Brush, External, X
• Poseidon waterproofing
• FRED flame retardant
• Can also provide bespoke spec wording for your project

Can't apply the product yourself? We maintain a network of trained and approved installers across the UK and internationally. We can match you with an approved contractor for your location and project type.

• Nationwide coverage across the UK
• International installer network
• Installers trained in spray, roller and brush application
• Request a quote from approved installers