
Send Us Your Drawings — Free Technical Advice & Markup
Not sure where the airtight line runs on your project? Send us the drawings — we’ll mark them up for you.
Our technical team reviews architectural drawings and details every week for architects, specifiers, contractors and self-builders. We’ll show you exactly where Passive Purple, fleece tape, sealants and primers go, flag the junctions and penetrations that fail air tests, and recommend the right products for your build method — timber frame, blockwork, ICF, steel or retrofit.
What we do with your drawings
- ✏️ Mark up the airtight and vapour control line — product by product, junction by junction
- 🔍 Flag the weak points — joist ends, window reveals, service penetrations, floor-to-wall junctions
- 📋 Recommend the spec — which product, which grade, coverage rates and application method
- 🌡️ Condensation risk — we can run a condensation risk analysis on your build-up
- 📐 Need standard details? Browse our detail drawings library
Send your drawings now
Attach your drawings (PDF or DWG), tell us the build type and your airtightness target, and we’ll come back to you.
The purple button opens your email app with everything pre-filled. Nothing happen when you click it? Your computer probably has no email app set up — hit Copy Our Email Address instead and paste info@intelligentmembranes.co.uk into Gmail or Outlook, attach your drawings, and send.
Who it’s for
Architects & specifiers — get the airtightness strategy resolved at design stage, with NBS-ready product data. See our architect & specifier hub.
Contractors & installers — avoid the on-site surprises that cost you an air test.
Self-builders — not sure what goes where? That’s exactly what this is for. No charge, no obligation.