Internorm

zepassiv tools ×
INTERNORM

Internorm partner edition

Window installation thermal bridges, solved for every Internorm partner.

A 12-month licence of the Zepassiv tool, in Internorm colours, with Internorm profiles and reports. Available from 8 November 2026.

The problem

A great window can still lose heat at the wall.

Every opening counts

Head, jamb and sill each add a thermal bridge (Ψ). Passive House, EnerPHit and energy assessors ask for it.

Simulation is slow

A 2-D model takes a specialist and expensive software. Most installers and designers wait days, or guess.

The window takes the blame

When the detail is unclear, the product is questioned. A clear answer helps sell the right installation.

See it in use

The Internorm edition in three minutes

Mock-up: Internorm logo, colours and profile names shown for illustration.

What is included

Every function of the tool, report included

LearnTeaching cases, temperature and material views
DocumentCatalogue cases with their Ψ and source
Project settingsInternorm profile picked from a list; Uf, Ug, depth and material fill in
CalculateOwn wall and frame position; live Ψ (PHPP and SAP), fRsi and temperature field
Drawings and compareUpload a detail sheet, crop head, jamb and sill; site photos
ReportA4 pages with both logos, as PDF; limited prints, watermarked

Protecting the engine

All calculations always run on Zepassiv servers, whatever the edition.

Results, never the solver

Partners send the detail and get Ψ, fRsi and the temperature field back. The engine never reaches their computer.

Personal access

A licence notice on every page and a personal access code for each partner.

Controlled reports

A limited number of report prints per licence, each one watermarked.

The offer

A 12-month licence for your partners

What Zepassiv does

  • Sets up and hosts the Internorm edition
  • Models and checks the first 6 Internorm profiles
  • Partner access codes for 12 months
  • Updates and support during the licence

Fee

£1,250

Set-up of the edition and the 6 profiles, plus the 12-month licence for your partners.

  1. 1 · AgreeChoose the first 6 profiles together.
  2. 2 · ModelWe draw each profile and check its Uf.
  3. 3 · BuildAddress, colours, logos and partner codes.
  4. 4 · ReviewA few partners test it; we fix what they find.
  5. 5 · LaunchOpen to partners. The 12 months start here.

Let’s pick the first six profiles.

Write to ru@flowbridgefinance.com or jm@flowbridgefinance.com for a short call.