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Verified construction product

ROCKWOOL

ROCKWOOL Comfortboard 80

A rigid stone wool insulation board designed for exterior continuous insulation applications in residential and commercial wall assemblies.

Published technical facts

Specification record

Actual density
8 lb/ft³
Flame spread index (ASTM E84)
0 index
Material
Rigid stone wool insulation board
R-value per inch at 75 °F (ASTM C518)
4.2 hr·ft²·°F/Btu

Decision summary

What professionals need first

What is this product?
Rigid stone wool board for exterior continuous insulation
Where is it used?
Exterior continuous insulation. Documented as rigid continuous insulation for above-grade walls, foundation perimeters, under-slab and related envelope assemblies.
Who manufactures it?
ROCKWOOL
Product category
Building Envelope
Open Product Data Sheet Open official product page

Construction use

Construction applications

  • Exterior continuous insulation

    Documented as rigid continuous insulation for above-grade walls, foundation perimeters, under-slab and related envelope assemblies.

    Official source

Specification support

Technical resources

Official documentation grouped by purpose. Duplicate links are omitted.

Product Data Sheets

Supporting Technical References

Evidence-backed attributes

Sustainability & compliance

Only manufacturer-documented or independently verified attributes appear. Evidence class distinguishes manufacturer declarations from third-party verification, certification, and building-rating contribution documentation. Product LEED or WELL certification is not implied.

Environmental performance

Connected network

Relevant connections

Direct manufacturer and documented system relationships only. Manufacturer exhibition participation does not imply that this product was exhibited.

  • ManufacturerROCKWOOL

    Company construction expertise, related products and verified exhibition participation.

  • Same manufacturerROCKWOOL Cavityrock

    Additional published ROCKWOOL product profile. Not a compatibility claim.

  • Same manufacturerROCKWOOL Comfortbatt

    Additional published ROCKWOOL product profile. Not a compatibility claim.

  • Same manufacturerROCKWOOL Toprock DD

    Additional published ROCKWOOL product profile. Not a compatibility claim.

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