Rainscreen and Cavity Wall Rainscreen Continuous Insulation Steel Stud Wood Frame Construction Insulation

CAVITYROCK®

Cavityrock® is a semi-rigid insulation board designed for exterior cavity wall and rainscreen applications. These products offer superior long-term thermal efficiency, fire resistance, moisture control, acoustic performance and are compatible with numerous framing systems and cladding attachment systems.

Also available in a black mat facer finish for open-joint cladding systems, Cavityrock® Black combines your insulation install with masking in a single step, reducing installation time and material cost to achieve your desired design aesthetic.

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Specification & sizes

Compliance ASTM C612, MEA Approval - CAN/ULC S702
ASTM C612 Mineral Fiber Block and Board Thermal Insulation - Type IVB Compliant
236 - 05 - M MEA Approval, New York City Approval
CAN/ULC S702 For information on CAN/ULC S702 compliance, contact ROCKWOOL Technical Support
Density ASTM C303
ASTM C303   Density (thickness: 1", 1.5", 2") > 4.3 lbs/ft3 (>69 kg/m3)* * Density will change with thickness, please contact ROCKWOOL for more information
Density (thickness ≥ 2.5") Dual Density - 6.2 lbs/ft³ (100 kg/m³) outer layer and 3.8 lbs/ft³ (61 kg/m³) inner layer
Dimensions

1” (25.4 mm) to 6” (152.4 mm) in 1/2” increments. 7” (177.8 mm) and 8” (203.2 mm)

24” x 48” (610 mm x 1219 mm) , 16” x 48” (406 mm x 1219 mm) for all sizes, 32” x 48” (813 mm x 1219) for 3”, 4”, 5 and 6” thicknesses

 

With black mat facer

2” (25.4 mm) to 4” (101.6 mm) in 1/2” increments, 5” (127 mm), 6” (152.4 mm)

24” x 48” (610 mm x 1219 mm) and 16” x 48” (406 mm x 1219 mm), 2.5”, 5” and 6” limited to 24 x 48 dimension

Thickness
≥ 2.5" Dual Density - 6.2 lbs/ft³ (100 kg/m³) outer layer and 3.8 lbs/ft³ (61 kg/m³) inner layer
Reaction to fire ASTM E84 (UL 723) - CAN/ULC S102 - CAN/ULC S114 - ASTM E136
ASTM E84 (UL 723) Flame spread index = 0 ; Smoke developed index = 0
CAN/ULC S102 Flame spread index = 0 ; Smoke developed index = 0
CAN/ULC S114 Determination of Non-Combustibility of Building Materials - Non-Combustible
ASTM E136 Behavior of materials at 750°C - Non-Combustible

 

With black mat facer

ASTM E84 (UL 723) Flame spread index = 10; Smoke developed index = 25
CAN/ULC S102 Flame spread index = 10; Smoke developed index = 10
Thermal resistance ASTM C518 (C177)
ASTM C518 (C177)  R-value / inch @ 75ºF - 4.3 hr.ft2.F/Btu
  RSI value / 25.4 mm @ 24ºC - 0.75 m2K/W
Acoustical Performance ASTM C423
Thickness 125 Hz 250 Hz 500 Hz 1000 Hz 2000Hz 4000 Hz NRC
1.5" 1.19 0.55 1.03 1.06 1.02 1.01 0.9
2" 0.26 0.71 1.14 1.09 1.04 1.03 1
3" 0.72 0.93 0.88 0.84 0.9 0.97 0.9
Reaction to moisture ASTM C1104 - ASTM E96 - ASTM C1338
ASTM C1104 Moisture Sorption - 0.03% by volume
ASTM E96 Water Vapor Transmission, Desiccant Method - 1555ng/Pa.s.m2 (27 perm) 
ASTM C1338 Determination of Fungi Resistance - Passed

 

With black mat facer

ASTM C1104 Moisture Sorption - 0.65% by volume
ASTM E96 Water Vapor Transmission, Desiccant Method - 2435ng/Pa.s.m2 (43 perm)
ASTM C1338 Determination of Fungi Resistance - Passed
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ASTM C612 Mineral Fiber Block and Board Thermal Insulation - Type IVB Compliant
236 - 05 - M MEA Approval, New York City Approval
CAN/ULC S702 For information on CAN/ULC S702 compliance, contact ROCKWOOL Technical Support
Back
ASTM C303   Density (thickness: 1", 1.5", 2") > 4.3 lbs/ft3 (>69 kg/m3)* * Density will change with thickness, please contact ROCKWOOL for more information
Density (thickness ≥ 2.5") Dual Density - 6.2 lbs/ft³ (100 kg/m³) outer layer and 3.8 lbs/ft³ (61 kg/m³) inner layer
Back

1” (25.4 mm) to 6” (152.4 mm) in 1/2” increments. 7” (177.8 mm) and 8” (203.2 mm)

24” x 48” (610 mm x 1219 mm) , 16” x 48” (406 mm x 1219 mm) for all sizes, 32” x 48” (813 mm x 1219) for 3”, 4”, 5 and 6” thicknesses

 

With black mat facer

2” (25.4 mm) to 4” (101.6 mm) in 1/2” increments, 5” (127 mm), 6” (152.4 mm)

24” x 48” (610 mm x 1219 mm) and 16” x 48” (406 mm x 1219 mm), 2.5”, 5” and 6” limited to 24 x 48 dimension

Back
≥ 2.5" Dual Density - 6.2 lbs/ft³ (100 kg/m³) outer layer and 3.8 lbs/ft³ (61 kg/m³) inner layer
Back
ASTM E84 (UL 723) Flame spread index = 0 ; Smoke developed index = 0
CAN/ULC S102 Flame spread index = 0 ; Smoke developed index = 0
CAN/ULC S114 Determination of Non-Combustibility of Building Materials - Non-Combustible
ASTM E136 Behavior of materials at 750°C - Non-Combustible

 

With black mat facer

ASTM E84 (UL 723) Flame spread index = 10; Smoke developed index = 25
CAN/ULC S102 Flame spread index = 10; Smoke developed index = 10
Back
ASTM C518 (C177)  R-value / inch @ 75ºF - 4.3 hr.ft2.F/Btu
  RSI value / 25.4 mm @ 24ºC - 0.75 m2K/W
Back
Thickness 125 Hz 250 Hz 500 Hz 1000 Hz 2000Hz 4000 Hz NRC
1.5" 1.19 0.55 1.03 1.06 1.02 1.01 0.9
2" 0.26 0.71 1.14 1.09 1.04 1.03 1
3" 0.72 0.93 0.88 0.84 0.9 0.97 0.9
Back
ASTM C1104 Moisture Sorption - 0.03% by volume
ASTM E96 Water Vapor Transmission, Desiccant Method - 1555ng/Pa.s.m2 (27 perm) 
ASTM C1338 Determination of Fungi Resistance - Passed

 

With black mat facer

ASTM C1104 Moisture Sorption - 0.65% by volume
ASTM E96 Water Vapor Transmission, Desiccant Method - 2435ng/Pa.s.m2 (43 perm)
ASTM C1338 Determination of Fungi Resistance - Passed
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Tools, Guides & Downloads

 

 

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Cavityrock® and Comfortbatt® Effective Insulation Solutions – The Future of High-Performance Rainscreen Systems
Cavityrock® and Comfortbatt® Effective Insulation Solutions – The Future of High-Performance Rainscreen Systems

The Building Envelope Design using ROCKWOOL

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Cavityrock ® Black Features and Benefits
Cavityrock ® Black Features and Benefits

The faced Cavityrock ® board reduces installation time and material cost to achieve your design aesthetic, particularly in open or exposed joint cladding applications

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Mid-Rise Wood Frame Construction Guide
Mid-Rise Wood Frame Construction Guide

This Mid-Rise Wood Construction Solutions Guide identifies several common locations where ROCKWOOL insulation can be used effectively in mid-rise wood construction.

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Arizona State University Case Study
Arizona State University Case Study

Sustainability is the common theme in this project, not just in its function as an education and research center, but in its design and construction as well. The building is designed to meet specifications for LEED Gold at a minimum, and possibly Platinum.

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CAVITYROCK Rush Hospital Case Study
CAVITYROCK Rush Hospital Case Study

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CAVITYROCK Humber Hospital Case Study
CAVITYROCK Humber Hospital Case Study

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CAVITYROCK Enclosure Renewal Project - The Belmont Case Study
CAVITYROCK Enclosure Renewal Project - The Belmont Case Study

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CAVITYROCK - 072113 GUIDESPEC - English - Canada
CAVITYROCK - 072113 GUIDESPEC - English - Canada

Specifications

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CAVITYROCK - 072113 GUIDESPEC - English - United States
CAVITYROCK - 072113 GUIDESPEC - English - United States

Specifications

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Additional Information About Cavityrock Black - Technical Bulletin
Additional Information About Cavityrock Black - Technical Bulletin

ROCKWOOL Cavityrock® Black is designed, tested, and approved for use in cavity wall and rainscreen systems that require a black finish due to the material being visible behind the cladding. This black finish is for aesthetic appeal where any visible insulation between the cladding joints will appear black rather than the natural insulation colour.

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New Updates to NFPA 285 Could Affect Future Exterior Wall Assembly Designs
New Updates to NFPA 285 Could Affect Future Exterior Wall Assembly Designs

The need to meet strict energy requirements means architects need new, more versatile insulation materials, such as stone wool for exterior wall assemblies.

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Fire Protection of Exterior Walls per NBC - Technical Bulletin
Fire Protection of Exterior Walls per NBC - Technical Bulletin

This document draws out some of the main points from the NBC regarding fire protection of exterior walls incorporating combustible components, claddings or cladding elements.

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CAVITYROCK Cavity Wall and Rainscreen Applications - Techdata
CAVITYROCK Cavity Wall and Rainscreen Applications - Techdata

ROCKWOOL Cavityrock ® semi-rigid stone wool insulation board available in mono and dual density is designed for exterior cavity wall and rainscreen applications. Choose mono-density insulation in thicknesses up to 2” or dual-density in thicknesses of 2.5” to 6”

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Cladding Attachment Solutions For Exterior Insulated Commercial Walls
Cladding Attachment Solutions For Exterior Insulated Commercial Walls

Cladding Attachment Solutions For Exterior Insulated Commercial Walls

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CAVITYROCK Builders Guide - Technical Guide
CAVITYROCK Builders Guide - Technical Guide

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Board Insulation Attachment Guide
Board Insulation Attachment Guide

This ROCKWOOL Board Insulation Attachment Guide provides recommendations for attaching ROCKWOOL semi-rigid and rigid board insulation products for most common applications, when used as part of a cladding attachment system or as plain board installation.

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Contractor Submittal Sheet CA
Contractor Submittal Sheet CA

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Contractor Submittal Sheet US
Contractor Submittal Sheet US

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Safe Use Instruction Sheet
Safe Use Instruction Sheet

ROCKWOOL provides this SUIS for safe handling and use instructions.

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