WISA® Spruce, Treated

Name: WISA® Spruce, Treated
Brand: WISA (UPM Plywood)

Nordic spruce plywood given a protective treatment for demanding, humid and weather-exposed conditions. Keeps the lightweight, cross-banded structural performance of WISA Spruce while extending durability for roofing, flooring, wall sheathing and other exposed construction uses.

Manufacturer page

Carbon and evidence

Product Evidence

Evidence currently held for the WISA (UPM Plywood) product record.

WISA (UPM Plywood)

Recorded Carbon Result

-650kgCO₂e/m³

A1–A3 GWP-total per m³, incl. biogenic carbon stored in the timber (EN 15804+A2), per EPD

Indicator: GWP-total

WISA® Spruce, Treated Environmental Product Declaration · PDF p. 9, mandatory impact category indicators

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: Representative product
Declared unit: 1 m³
Programme: EPD International AB — The International EPD System
Registration: EPD-IES-0018171:003
Standard: EN 15804+A2
Valid until: 2029-12-19
Verification: Third-party verified

Declared per 1 m³ (density 460 kg/m³); for a per-m² figure multiply by board thickness in metres. GWP-total A1–A3 is negative because EN 15804+A2 counts the biogenic carbon stored in the timber.

EPD on the manufacturer’s siteSource: PDF p. 9, mandatory impact category indicators

Carbon profile

kgCO2e per 1 m³ · each bar starts at zero · local scale

A1-A3 product

-650

A4-A5 site*

61.9

B use

not declared

—

C end of life

712

D reuse / recycling

-177

Stores more carbon than making it emits — and the stored carbon largely leaves again at end of life.

adds carbon stores or removes EPD scenario* reuse/recycling potential (D)

* EPD transport and installation scenario, not this project's. Not declared: use. Module D shows potential impacts or benefits from reuse, recovery or recycling after the product's assessed life. It is reported separately and never added to A-C. Do not compare bar lengths between materials. Each chart may use a different scale and declared unit.

Reported GWP Modules

Displayed as stored; modules are not added together here.

A1–A3

-650 kgCO₂e

per 1 m³

A4*

10.4 kgCO₂e

per 1 m³

A5*

51.5 kgCO₂e

per 1 m³

0.276 kgCO₂e

per 1 m³

6.08 kgCO₂e

per 1 m³

706 kgCO₂e

per 1 m³

0 kgCO₂e

per 1 m³

-177 kgCO₂e

per 1 m³

* A4/A5 are EPD scenarios, not project-specific results. Module D is outside the A–C system boundary and is not added to A–C. 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.

Upfront Carbon (A1–A5)*

-588 kgCO₂e per 1 m³

A1–A3 -650 + A4 10.4 + A5 51.5 · GWP-total, as declared

* Includes the EPD’s A4/A5 scenario assumptions, not project-specific transport or installation. This is the aggregation the proposed Part Z applies upfront limits to. The A1–A3 figure includes declared biogenic storage of -731 kgCO₂e; Part Z aggregates upfront carbon excluding sequestered carbon, which is the assessor's adjustment to make.

Service Life — the B4 Replacement Input

100 years · EPD reference service life

The declaration states 100 years as a minimum rather than an expected figure, for a board installed properly with low or moderate moisture exposure.

≈1 installation 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.

Sourced Product Claims

FSC / PEFC chain-of-custody sourcing applies depending on the product specificationManufacturer declaredSource
Surface-treated spruce plywood; the declaration covers water-resistant (WR) and fire-retardant (FR) treated variants among othersManufacturer declaredSource
Third-party verified EPD (EN 15804+A2)Third-party verifiedSource

1 claim is held in the staging record but not presented as product evidence because an exact public source has not yet been mapped.

Evidence Sources

WISA® Spruce, Treated product page

WISA (UPM Plywood)

Coverage: WISA Spruce Treated

Manufacturer declared

WISA® Spruce, Treated Environmental Product Declaration

EPD International AB — The International EPD System · PDF p. 9, mandatory impact category indicators

Coverage: representative

Third-party verified

Comparison Status

The record contains the basic metadata required for a controlled comparison. Products must still perform the same function and use compatible units, PCRs and lifecycle scope.

Evidence Gaps

•1 sustainability claim is 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.

Nordic spruce plywood given a protective treatment for demanding, humid and weather-exposed conditions.

Typical Uses

•Interior wall cladding
•Warm feature panels
•Lobby accents

Key Performance

High load-bearing capacity for primary structure.

Specification Actions

•Confirm FSC or PEFC certification for all timber products.
•Request chain-of-custody documentation from supplier.
•Confirm the current EPD covers the selected product, finish and manufacturing route.

Indicative Health & Indoor Air

low Risk

Preservative-treated spruce plywood; follow cutting-dust controls and treatment-specific handling guidance.

Evidence:Third-party verified

Specification

Range: WISA Spruce Treated
Collection: WISA Spruce
Finish: Preservative-treated spruce plywood
Thickness: 9–50mm
Width: 1200–1525mm
Length: 2400–3660mm
Service life: 100 years