ROCKWOOL Flat Roof Insulation
Rigid stone wool insulation boards for flat (warm) roofs — load-bearing, non-combustible (Euroclass A1), with good thermal, acoustic and fire performance and dimensional stability under membranes. A different application to ROCKWOOL’s rainscreen slab.
Carbon and evidence
Product Evidence
Evidence currently held for the ROCKWOOL product record.
Recorded Carbon Result
A1–A3 GWP-total per m² at R=1 m²K/W, per EPD (scale by R-value)
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 m² at R=1 m²K/W (ref 39 mm, 60 kg/m³)
- Programme
- The Norwegian EPD Foundation (EPD Norge)
- Registration
- NEPD-4120-3334-EN
- Standard
- EN 15804+A2
- Valid until
- 2028-01-03
- Verification
- Third-party verified
Third-party verified (EPD Norge). Declared per 1 m² at R=1 m²K/W — scale by the specified R-value (a typical R≈6 flat roof ≈ 10 kgCO2e/m² A1–A3). Nordic-market EPD; stone wool carbon is broadly market-independent.
Carbon profile
kgCO2e per 1 m² at R=1 · each bar starts at zero · local scale
A1-A3 product
1.68
A4-A5 site*
0.261
B use
—
C end of life
0.0417
D reuse / recycling
-0.0663
Reported GWP Modules
Displayed as stored; modules are not added together here.
A1–A3
1.68 kgCO₂e
per 1 m² at R=1
A4*
0.0812 kgCO₂e
per 1 m² at R=1
A5*
0.18 kgCO₂e
per 1 m² at R=1
C1
0 kgCO₂e
per 1 m² at R=1
C2
0.00837 kgCO₂e
per 1 m² at R=1
C3
0 kgCO₂e
per 1 m² at R=1
C4
0.0333 kgCO₂e
per 1 m² at R=1
D
-0.0663 kgCO₂e
per 1 m² at R=1
Upfront Carbon (A1–A5)*
1.94 kgCO₂e per 1 m² at R=1
A1–A3 1.68 + A4 0.0812 + A5 0.18 · as declared
Service Life — the B4 Replacement Input
60 years · EPD reference service life
≈1 installation over a 60-year building study period.
2 claims and 1 certification 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 GWP indicator is missing.
- • The carbon result is not linked to an evidence source.
- • The EPD is not linked to an evidence source.
Evidence Gaps
- •2 sustainability claims are withheld because exact public evidence is not mapped.
- •1 certification 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.
Rigid stone wool insulation boards for flat (warm) roofs — load-bearing, non-combustible (Euroclass A1), with good thermal, acoustic and fire performance and dimensional stability under membranes.
Typical Uses
- •Thermal envelope
- •Roof/wall cavities
- •Airtightness layers
Key Performance
Good thermal resistance with reduced heat loss.
Specification Actions
- •Compare embodied carbon of insulation options (natural vs synthetic).
- •Request blowing agent GWP values for foam insulation.
- •Confirm the current EPD covers the selected product, finish and manufacturing route.
Indicative Health & Indoor Air
Stone wool board; standard handling for mineral fibre dust when cutting.
Specification
- Range
- Flat roof stone wool insulation
- Collection
- Flat Roof
- Finish
- Stone wool flat-roof insulation board
- Service life
- 60 years