Rationel AURA

Rationel’s contemporary all-timber window: square-cut FSC pine profiles, made to measure across fixed, top-guided, side-hung and tilt/turn openings. Triple glazed to 0.78 W/m²K. 200+ standard colours with dual-colour inside/out.

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Rationel Rationel AURA

Carbon and evidence

Product Evidence

Evidence currently held for the Rationel product record.

Rationel

Recorded Carbon Result

32.6kgCO₂e/m²

A1–A3 GWP-total per m² of AURA top-guided window (1230 × 1480 mm reference, 36.09 kg/m²), per S-P-07599. Includes −25.8 biogenic uptake; GWP-fossil is 56.8.

Indicator: GWP-total

A1–A3 covers raw-material supply, transport to manufacture and manufacturing. It is product-stage information, not a whole-life result.

Environmental Product Declaration

EPD recorded
Coverage
Specific product
Declared unit
1 m² window (standard reference window 1230 × 1480 mm, 36.09 kg/m²) — AURA top-guided
Programme
The International EPD System (EPD International AB)
Registration
S-P-07599 (:001)
Standard
EN 15804+A2 (PCR 2019:14 + c-PCR-007 Windows and doors)
Valid until
2028-09-15
Verification
Third-party verified

Product-specific declaration for the top-guided opening type; plant DOVISTA Polska, Wedkowy. GWP-total embeds −25.8 of biogenic uptake (GWP-fossil 56.8) — do not compare GWP-total against non-timber frames without noting this.

Reported GWP Modules

Displayed as stored; modules are not added together here.

A1–A3

32.6 kgCO₂e

per 1 m² window (1230 × 1480 mm reference)

* A4/A5 are EPD scenarios, not project-specific results. Module nomenclature follows BS EN 15978 / EN 15804. Declared values are suitable as inputs to a whole life carbon assessment under the RICS Professional Standard (2nd edition); this panel is not an assessment.

Service Life — the B4 Replacement Input

40 years · manufacturer declared

≈2 installations over a 60-year building study period.

B4 (replacement) follows the building, not the product: an assessor multiplies replacement cycles by project quantities. This record supplies the service life and does not compute B4.

2 certifications are held in the staging record but not presented as product evidence because an exact public source has not yet been mapped.

Comparison Status

This result should be displayed for information only and not ranked against another product.

  • • The PCR and version are missing.
  • • The carbon result is not linked to an evidence source.
  • • The EPD is not linked to an evidence source.

Evidence Gaps

  • No A4–D lifecycle results are held beyond the product stage.
  • No product-specific circularity or material-health claims are recorded.
  • 2 certifications are withheld because exact public evidence is not mapped.

Design & Specification Notes

Qualitative notes for early design discussion. Not product-specific EPD evidence, and not a basis for numerical comparison.

Rationel’s contemporary all-timber window: square-cut FSC pine profiles, made to measure across fixed, top-guided, side-hung and tilt/turn openings.

Typical Uses

  • Glazing systems
  • Daylight openings
  • Thermal envelope

Key Performance

Supports daylight and thermal performance of the envelope.

Specification Actions

  • Confirm FSC or PEFC certification for all timber products.
  • Request chain-of-custody documentation from supplier.
  • Verify glazing U-values meet or exceed building regs.

Indicative Health & Indoor Air

low Risk
Evidence:Third-party verified

Specification

Finish
Solid timber window, contemporary square-cut profile
Thermal
Uw 0.78 W/m²K (triple) / 1.29 (double)
Service life
40 years

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