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Metal Building Exterior Walls Insulation

ROCKWOOL Plus™ MB

ROCKWOOL Plus™ MB is a is a lightweight, non-combustible, semi-rigid mineral wool blanket insulation that is designed for pre-engineered metal building construction where an hourly fire rating is not required. 

 

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ROCKWOOL Plus™ MB is a is a lightweight, non-combustible, semi-rigid mineral wool blanket insulation

ROCKWOOL Plus™ MB is designed for pre-engineered metal building construction where an hourly fire rating is not required. Insulating buildings with ROCKWOOL Plus™ MB will help increase energy efficiency, improve thermal stability and enhance fire protection for the overall comfort and safety of occupants.

Properties:

  • Lightweight, fire-resistant and sound absorbent
  • Strong—well suited for site durability
  • Easy to install, easy to cut
  • Water and moisture resistant—maintains R-value even when wet
  • Does not rot or promote the growth of mildew, fungi or bacteria
  • Sag-resistant for tight fits; high density ROCKWOOL Plus™ MB never loses shape
  • Consistent thermal performances with high R-Values
  • ROCKWOOL PLUS™ MB can contribute to earning LEED® points
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Specification & sizes

Compliance ASTM C553
ASTM C553

Mineral Fiber Blanket Thermal Insulation, Type I, II and III

Density ASTM C303
ASTM C303 Actual Density - 2 lb/ft³ (32 kg/m³)
Dimensions Dimensions
24" x 48" (610 mm x 1219 mm)
Thickness Thickness
2” through 4” (50.8 mm – 101.6 mm) in 1/2" (12.7 mm) increments
5" (127 mm) and 6" (152.4 mm)
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

Thermal resistance ASTM C518 (C177)
ASTM C518 (C177) R-value / inch @ 75ºF - 4.0 hr.ft2.F/Btu
ASTM C518 (C177) RSI value / 25.4 mm @ 24ºC - 0.70 m2K/W
Acoustical Performance ASTM C423
Thickness 125 Hz 250 Hz 500 Hz 1000 Hz 2000Hz 4000 Hz NRC
2.5" 0.34 0.76 1.12 1.05 1.04 1.04 1
3.5" 0.56 0.99 1.17 1.04 1.05 1.05 1.05
6" 1.17 1.2 1.16 1.08 1.08 1.07

1.15

Reaction to moisture ASTM C1104 - ASTM C1338
ASTM C1104 Moisture Sorption - 0.03%
ASTM C1338 Determination of Fungi Resistance - Passed
Corrosion Resistance ASTM C795 - ASTM C665
ASTM C795 Stress Corrosion Cracking Tendency of Austenitic Stainless Steel - Passed
ASTM C665 Corrosion of Steel - Passed
Back
ASTM C553

Mineral Fiber Blanket Thermal Insulation, Type I, II and III

Back
ASTM C303 Actual Density - 2 lb/ft³ (32 kg/m³)
Back
24" x 48" (610 mm x 1219 mm)
Back
2” through 4” (50.8 mm – 101.6 mm) in 1/2" (12.7 mm) increments
5" (127 mm) and 6" (152.4 mm)
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

Back
ASTM C518 (C177) R-value / inch @ 75ºF - 4.0 hr.ft2.F/Btu
ASTM C518 (C177) RSI value / 25.4 mm @ 24ºC - 0.70 m2K/W
Back
Thickness 125 Hz 250 Hz 500 Hz 1000 Hz 2000Hz 4000 Hz NRC
2.5" 0.34 0.76 1.12 1.05 1.04 1.04 1
3.5" 0.56 0.99 1.17 1.04 1.05 1.05 1.05
6" 1.17 1.2 1.16 1.08 1.08 1.07

1.15

Back
ASTM C1104 Moisture Sorption - 0.03%
ASTM C1338 Determination of Fungi Resistance - Passed
Back
ASTM C795 Stress Corrosion Cracking Tendency of Austenitic Stainless Steel - Passed
ASTM C665 Corrosion of Steel - Passed
Back

Tools, Guides & Downloads

 

 

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ROCKWOOL Plus™ MB Metal Building Insulation - Data Sheet
ROCKWOOL Plus™ MB Metal Building Insulation - Data Sheet

Lightweight, semi-rigid mineral wool batt insulation designed for pre-engineered metal building construction where an hourly fire rating is not required.

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ROXUL SAFE™ 55 & 65 and ROCKWOOL PLUS™ MB Insulation for Pre-Engineered Metal Buildings
ROXUL SAFE™ 55 & 65 and ROCKWOOL PLUS™ MB Insulation for Pre-Engineered Metal Buildings

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ROCKWOOL PLUS MB 072116 BLANKET INSULATION GUIDESPEC English - Canada
ROCKWOOL PLUS MB 072116 BLANKET INSULATION GUIDESPEC English - Canada

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ROCKWOOL PLUS MB 072116 BLANKET INSULATION GUIDESPEC English - United States
ROCKWOOL PLUS MB 072116 BLANKET INSULATION GUIDESPEC English - United States

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Safe Use Instruction Sheet
Safe Use Instruction Sheet

This document is provided by ROCKWOOL to communicate recommended safe handling and use instructions.

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Our products are diverse and contribute to shaping a circular economy, enhancing resource efficiency, and nurturing the safety, health and wellbeing of people.

ROCKWOOL Group