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Thermafiber® RainBarrier® ci High Compressive Plus (110) | Owens Corning Insulation
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Thermafiber® RainBarrier® ci High Compressive Plus (110)

Why choose mineral wool insulation?

Thermafiber® RainBarrier® ci High Compressive Plus (110) mineral wool continuous insulation boards are designed to support cladding attachment with minimal penetrations. The use of ThermaCrimp™ technology delivers the benefits of high compressive strength insulationallows for superior compressive strength while providing thermal efficiency, non-combustibility, water repellency, and flexibility when working with uneven substrates. It is particularly well-suited for projects requiring medium-weight cladding insulation solutions, such as exterior walls with two-coat stucco, providing reliable support without compromising thermal performance. RainBarrier® ci High Compressive Plus (110) can be used behind medium-weight cladding types, — including combustible and open-joint assemblies.

Key Features of Thermafiber® RainBarrier® ci High Compressive (110):

  • Lighter Design - More than 25% lighter than the leading competitor’s product.
  • Medium-Weight Cladding Support – Supports exterior walls with fiber cement siding and two-coat stucco, bridging the gap between lightweight façades and heavy wall systems.
  • Durability - Non-combustible and non-deteriorating over time. 
  • Acoustic Support - Enhances acoustic performance.
  • Green Building Contribution - Helps conserve energy and reduce greenhouse gas emissions.
Thermafiber® RainBarrier® ci High Compressive Plus (110)

Performance Attributes

RainBarrier® ci High Compressive Plus (110) is a mineral wool continuous insulation designed to support medium-weight cladding insulation while minimizing penetrations through the insulation layer, helping to maintain better thermal performance and reducing potential water paths. It is lighter than similar products, making it easier to handle and install.

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High Compressive Strength

Supports cladding attachment system with minimal penetration through continuous insulation

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Lighter in Weight

More than 25% lighter in weight than the leading competitor’s product

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Energy Conservation

Minimum 70% recycled content. Contributes to credits in several green building programs such as LEED® and Green Globes®

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Non-combustible

Non-combustible and non-deteriorating

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Fire-Resistant

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Vapor Permeable

Allows vapor to pass through, minimizing moisture buildup behind the cladding.

Technical Information

Physical Properties

Property

Test Method

Value

Compressive StrengthASTM C165720 lbs/ft² @ 10% deformation

Corrosion of Steel, Aluminum, and Copper

ASTM C665

Pass

Stress Corrosion – Austenitic Stainless Steel

ASTM C795

Pass

CombustibilityASTM E136Non-combustible
Water Vapor PermeanceASTM E9646 perm
Water Vapor SorptionASTM C1104Sorption <0.1% by volume

Linear Shrinkage

ASTM C356<2% @1,200°F (650°C)
Surface Burning CharacteristicsASTM E84

Flame Spread 0,
Smoke Developed 0

Fungi-ResistanceASTM C1338Complies

Odor

ASTM C1304Complies

Applications

This mineral wool insulation product is used in exterior wall systems that require high compressive strength insulation, such as mid-rise office buildings and dormitories with heavier cladding panels. It’s ideal behind medium-weight cladding insulation, maintaining thermal performance without adding unnecessary load or compromising support.

  • Facades
  • Facades > Bricks
  • Facades > Composite Board
  • Facades > Metal
  • Facades > Stone
  • Facades > Tiles
  • Facades > Wood
  • Walls

Contact Us

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