U-CalQ01
Define the layer build-up
Choose materials from the library. Set layer thicknesses and arrange the build-up from inside to outside.
Building physics software
R-value calculation
and moisture assessment
Software for building professionals, energy advisers and designers. R-values in h·ft²·°F/Btu, U-factors and simplified moisture assessment and insulation comparisons for preliminary design.
Android available · Windows, macOS and iOS: Coming soon
Assembly R-value
25.6 h·ft²·°F/BtuCalculated example · 5.51 in mineral wool
ACTUAL APP SCREEN · EXAMPLE DATA25.6 h·ft²·°F/BtuCalculated example · 5.51 in mineral wool
ApplicationsTrades & constructionEnergy advice & designRenovation & retrofit
Workflow
Construction build-up
and calculation
Calculations use the layer build-up, material properties and specified boundary conditions.
02
Review calculation results
Use R-values, surface temperatures and visual profiles for a preliminary assessment of your construction.
03
Document alternatives
Compare insulation thicknesses and document results in client or technical reports. Advanced features require Pro.
Calculation example
Assembly R-value as a function
of insulation thickness
Calculation example for a solid brick wall with mineral wool insulation. Insulation thickness is variable; all other inputs remain constant.
INSIDEOUTSIDE
25.6h·ft²·°F/Btu
Assembly R-value
Assembly R-value
Simplified one-dimensional assembly: 0.59 in plaster, 9.45 in solid brick, mineral wool k = 0.243 Btu·in/(h·ft²·°F), 0.79 in render. Includes interior and exterior surface resistances of R-0.74 and R-0.23. Assembly R-value, not the insulation product rating; excludes framing and thermal bridges. Not a code-compliance assessment.
Features
Calculation and
assessment
App views showing an example construction, material properties and calculation results.
Pro features
Special calculations
Room climate
Assess room humidity, ventilation and moisture buffering by wall and ceiling surfaces.
Heat storage
Calculate thermal mass and periodic thermal behavior for the defined layer build-up.
Air layers
Assess thermal resistance with layer thickness, heat-flow direction and ventilation conditions.
Framing and cavities
Compare framing and insulated-cavity paths using an approximate area-weighted calculation.
Project climate
Select location and climate data for the assessment. Reference conditions remain visible.
AI assembly capture
Planned: use a photo, region and construction year to suggest an editable layer build-up. This feature is not yet available.
U-CalQ for Windows
Desktop version
for Windows
The Windows version displays the layer build-up and calculation results side by side. It includes project management and PDF reports and requires a separate license.
- View your construction and results side by side
- Manage customers, projects and building elements
- Document assessments in PDF reports
- Keep project data locally on your device
Actual Windows interface · Example construction · No automatic cloud synchronization.
Licenses and pricing
Android and Windows
ANDROID · iOS
U-CalQ mobile
For preliminary assessments on smartphones and tablets.
Free basic version
- Basic R-value calculations
- Pro for advanced calculations, comparisons and PDFs
- Mobile Pro is purchased separately on Google Play
App StoreComing soon
See the app for Pro options and current prices. The free version may contain ads.
WINDOWS · DESKTOP
U-CalQ Desktop
For Windows. Buy once and keep using the purchased version.
€49.90
including VAT · one-time purchase · no subscription
- Full desktop feature set
- Client and technical PDF reports
- Separate Windows license for one workstation
Coming soon. Desktop sales have not started yet.
Questions & answers
Technical and
licensing questions
Does U-CalQ replace a formal building-physics assessment?
No. U-CalQ is intended for preliminary assessments and comparisons. Simplified moisture calculations do not replace project-specific professional assessments or validated hygrothermal simulations.
Can I calculate offline on site?
Calculations and customer and project data are stored locally. Store purchases, license activation and some platform services require an internet connection.
Does one purchase cover Android and Windows?
Mobile Pro on Google Play and the Windows license are separate products. The desktop version costs €49.90 including VAT as a one-time purchase.
How does the desktop purchase work?
Payment is handled by Stripe. Once payment is verified, the confirmation page provides protected download access and your license key. Sales will open when payment processing and the release download are configured.
Is U-CalQ available for iPhone and iPad?
An Apple App Store release is being prepared. A direct link will appear here when the app is available. No release date has been announced.
Are my projects synced automatically?
No. U-CalQ stores your project data locally. There is no automatic cloud synchronization between mobile and desktop.
Contact and support
Questions about the app, the desktop edition or use in your business?
Technical scope: U-CalQ provides approximate calculations. Results do not replace project-specific thermal, moisture, thermal-bridge, fire, acoustic or structural assessments. Capillary-active internal insulation and complex construction details may require separate specialist analysis.