Hygrothermal analysis

WUFI simulation for UK timber construction.

TimbA Systems provides dynamic hygrothermal analysis using WUFI software — assessing moisture and heat transfer through timber building envelopes to ensure durability, compliance and long-term performance.

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Hygrothermal analysis

Protect your timber structure from moisture failure.

Moisture damage is one of the leading causes of premature failure in timber buildings. WUFI (Wärme und Feuchte Instationär) is the industry-standard software for dynamic hygrothermal simulation — modelling how heat and moisture move through building assemblies over time. TimbA uses WUFI to assess timber envelope performance under UK climate conditions, identify condensation risk, and specify the right membranes and airtightness systems.

Dynamic moisture and heat transfer simulation
UK climate data and CIBSE weather files
Condensation risk assessment to BS EN 15026
Membrane and airtightness specification
Building Regulations Part C compliance support
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What we analyse

WUFI simulation services

Timber frame wall assemblies

Analysis of timber frame wall build-ups including insulation, vapour control layers, breather membranes and cladding — assessing condensation risk and drying potential.

CLT and mass timber panels

Hygrothermal assessment of exposed and concealed CLT panels, checking moisture content stays within safe limits throughout the year under UK climate loading.

Roof and floor assemblies

Flat and pitched roof assessments, ground floor build-ups and interfaces — identifying risk areas and specifying correct membrane systems to prevent interstitial condensation.
Who needs WUFI analysis

Required on most modern timber projects

Hygrothermal analysis is increasingly required by building control, planning authorities and warranty providers for timber construction projects.

Structural engineers

Confirming envelope durability alongside structural calculations for CLT and timber frame projects.

Architects

Validating wall, roof and floor assemblies before planning submission or building control.

Developers & contractors

Meeting warranty provider requirements (NHBC, Premier Guarantee) for moisture performance in timber buildings.
For contractors & project buyers

Working on a large project? Let's talk directly.

Our biggest customers are mass timber contractors. We offer bespoke pricing, dedicated engineering support, and full supply chain management.

Call us now Email for a project quote
Phone — speak to an engineer
+44 7312 157434
Mon–Fri · 8am–6pm
Email — project enquiries
info@timbasystems.com
We respond within 4 hours on working days
Address
36 Siddington Drive, Aylesbury
HP18 0UE, United Kingdom