Technical Evidence

Technical information and project evidence

Request current technical evidence, test data, U-value calculations, PAS 24 security certification and route-specific specification schedules for trade projects.

Request technical evidence Open a trade account

Evidence issued at quoteCurrent test evidence for the selected configuration, on request.

Trade-first supportDirect support for architects, specifiers, contractors and installers.

Project-specific calculationsThermal, structural and acoustic evidence tailored to project brief.

Compliance scope

Available technical evidence

Thermal: Whole-unit Uw/Ucw calculations to BS EN ISO 10077-1/2 for Document L compliance.
Security: PAS 24:2025 and Document Q compliance test reports for specified profiles.
Weather Performance: Air permeability, watertightness, and wind resistance to BS 6375-1.
Acoustics: Sound reduction index (Rw) data for acoustic laminate and double/triple IGU specifications.
Structural: Inertia (Ix/Iy) values and wind load deflection calculations for commercial spans.

How to request

Request technical documents

Send your drawings, opening schedules, and required performance targets. We confirm the applicable product route and provide relevant technical datasheets and calculation certificates.

Submit technical request

Regulatory Guidance

Standards & building regulation routes

Approved Document L

Thermal efficiency standards for new builds and refurbishments. Calculations account for glass center-pane Ug, spacer bar psi value, and frame Uf.

Read thermal guidance

Approved Document Q

Security compliance requirements for accessible windows and doors in new residential developments.

Read security guidance

BS 4873 & EN 13830

UK and European standards for aluminium alloy windows, doorsets, and curtain walling systems.

Read curtain walling spec

Common technical questions

How do I request project-specific test certificates and technical evidence?

Submit your project schedule, opening dimensions, target U-values, and security requirements via our trade request form. Our technical team issues certified data and route-specific evidence for the exact profile, glass and hardware configuration selected.

What technical documentation is provided before fabrication?

For approved trade orders, we provide CAD elevations, section details, thermal simulation calculations, glass performance sheets, hardware schedules, and delivery logistics plans.

Are test certificates transferable across different window or door sizes?

Test evidence (such as PAS 24 or BS 6375 weather testing) covers specific size envelopes, glass specifications, and hardware configurations. We verify your exact opening against the tested boundary before issuing project compliance declarations.

Verified business details

VITRINEALU LTD

Company number 12927857