Services
Design, model, test.
Appoint us for one study or for the whole envelope journey — from concept build-ups to the final airtightness certificate.
Envelope design
Build-up options compared for U-value, carbon, cost, fire and buildability.
Thermal bridging
ψ and χ values to ISO 10211, with redesign proposals for weak junctions.
Hygrothermal
Transient WUFI models for internal insulation, timber and heritage walls.
Airtightness
Strategy, membrane detailing, interim and final blower-door tests.
Thermography
Infrared surveys with heat-loss mapping and prioritised fixes.
Facade review
Independent review of contractor designs, samples and mock-ups.
Process
How an appointment runs
Review
We read the drawings and specification and list the risks.
Model
Critical junctions and build-ups are modelled and optimised.
Detail
Clear 1:5 details and a membrane strategy for site.
Test
Interim and final tests prove the envelope performs.
FAQ
When should we appoint you?
At concept stage ideally — build-up and junction decisions are cheapest before planning.
Do you only work on new buildings?
No, about half of our work is retrofit and heritage, where moisture risk is often the critical question.
How long does a thermography survey take?
A typical building is surveyed in one cold morning; the report follows within a week.
Can you test during construction?
Yes — interim airtightness tests before linings go up are the most effective way to hit targets.