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Thermafiber® Safing | Owens Corning Insulation

Thermafiber® Safing mineral wool insulation products are designed to provide enhanced fire protection in perimeter fire containment systems tested to ASTM E2307, floor and wall penetrations, construction joints, and other firestopping applications. These products are noncombustible, moisture-resistant, non-corrosive, non-deteriorating, mildew-resistant and vermin-resistant. Thermafiber® Safing provides thermal insulation, fire containment, and enhanced acoustical performance in many different UL and Intertek (formerly OPL) listed fire containment assemblies of 1, 2, and 3-hr ratings.

Download Product Data Sheet
Thermafiber® Safing package

Features

  • Exceptional performance in Perimeter Fire Containment Systems as tested in full-scale ASTM E2307 systems
  • Provides fire containment in rated assemblies
  • Fire-resistant to temperatures above 1,093°C (2,000°F)
  • Helps conserve energy, reduce greenhouse gas emissions
  • Mold-resistant
  • Enhances acoustical performance
  • Minimum 70% recycled content
  • Contributes to credits in several green building programs, such as LEED® and Green Globes®

Standards, Code Compliance

  • CAN/ULC-S702.1, Standard for Mineral Wool Fibre Thermal Insulations, Type 1 (Unfaced)
  • ASTM C612, Types IA, IB, II, III, IVA

Installation

All firestopping insulation should be installed per the tested and listed assembly requirements that most closely represent the project conditions.

  • Perimeter Fire Containment Installation: Thermafiber® Safing insulation should be compression-fitted between the slab edge and the Thermafiber® FireSpan® curtain wall insulation, leaving no voids per the UL® or Intertek® design listing.
  • Penetration Application: Thermafiber® Safing insulation should be cut slightly larger than the opening and compression-fitted into the opening, leaving no voids per the UL® or Intertek® design listing.
  • Construction Joint Application: Thermafiber® Safing insulation should be compression-fitted into the joint opening, leaving no voids per the UL® or Intertek® design listing.

Certifications and Sustainable Features

  • Verified by ICC-ES to contain a minimum of 70% recycled content. See ICC-ES Evaluation Report VAR-1025 at icc-es.org.
  • Environmental Product Declaration (EPD) has been certified by UL Environment. For more information, visit ul.com/epd.
  • Safing Products have a published Health Product Declaration (HPD).

Technical Information

PROPERTY

VALUE

TEST METHOD

COMPLIANCE

CCMC Evaluation Listing No. 14060-L
Type 1 (Unfaced)

CCMC
CAN/ULC-S702.1

Performance Criteria

PROPERTY

VALUE

TEST METHOD

FIRE

Complies

CAN/ULC-S114
Non-Combustible as defined per NFPA Standard 220ASTM E136
Smoulder Resistance Mean Mass Loss ≤ 0.02%CAN/ULC-S129
Flame Spread 0; Smoke Developed 5CAN/ULC-S102
Flame Spread 0; Smoke Developed 0ASTM E84

Perimeter Fire Containment
Thermafiber® Safing insulation used in conjunction with Thermafiber® FireSpan® insulations in the Perimeter Fire Containment System (Complies) 

ASTM E2307

Fire Tests of Firestop Systems (Complies)

CAN/ULC-S115

Penetration Firestop Systems 
Thermafiber® Safing insulation used in conjunction with an approved fill, void, or cavity material sealant or other approved material in through-penetration firestop systems (Complies)

ASTM E814 or UL1479

Material in Construction Joint Systems
Thermafiber® Safing insulation used in conjunction with an approved fill, void, or cavity material in construction joint systems (Complies)

UL 2079

MOISTURE

Moisture Absorption <1% by volumeASTM C1104

Water Vapour Permeance;
Unfaced 2850 ng/Pa.s.m2 (50 Perms)


ASTM E96

CORROSION

Austenitic Stainless Steel - Pass

ASTM C795

Steel, Aluminum, Copper - Non-corrosive Types I, II

ASTM C665

Perimeter Fire Containment Systems Per ASTM E2307

Safing insulation is a critical component of any perimeter fire containment system. Thermafiber, Inc. has performed decades of testing in all of the perimeter fire containment systems listed below.

  • Aluminum Spandrel
  • Steel Stud-Framed/Gypsum Sheathing
  • Glass Spandrel
  • Granite Spandrel
  • Precast Concrete Spandrel
  • Steel Back Pan

For more complete test information, see UL® and Intertek® (formerly OPL) Directories. For a full listing of fire containment systems, visit thermafiber.com.
UL Reference = TYPE SAF.

For additional job-specific details and accessory materials necessary to complete the Perimeter Fire Containment System, please refer to UL® and Intertek® design listings.2,3

See Owens Corning publication “Enclosure Solutions Perimeter Fire Containment System E2307 Perimeter Technical Bulletin” for more information.

See Owens Corning publication “Thermafiber® Perimeter Fire Containment System Guide” for more information.

2. UL Fire Rated Designs, UL 333 Pfingsten Road, Northbrook, IL 60062.
3. Intertek Laboratories Designs, Fire Resistance Directory, Intertek 16015 Shady Falls Rd. Elmendorf, TX 78112

Technical Data

PRODUCT

ACTUAL DENSITY

RSI /25.4 MM @ 24 ºC M2•K/W

R-VALUE/INCH @ 75 ºF HR•FT2•ºF/BTU

TEST METHOD

Safing 4.0

64 kg/m3 (4.0 lbs/ft3)

0.74

4.2


ASTM C518

Safing 6.0

96 kg/m3 (6.0 lbs/ft3)

0.74

4.2

Availability

PRODUCT

AVAILABLE THICKNESS

STANDARD DIMENSIONS4,5

Safing 4.0
64 kg/m3 (4.0 lbs/ft3)

25 mm - 178 mm (1" - 7") in
13 mm (½") increments

610 mm x 1219 mm (24" x 48")

Safing 6.0
96 kg/m3 (6.0 lbs/ft3)

52 mm (2"), 76 mm (3"),
102 mm (4"), 152 mm (6")

610 mm x 1219 mm (24" x 48")

Tolerances

+6 mm (¼"), -3 mm (⅛")

Width: ±3 mm (⅛"),
Length: ±13 mm (½")

4 See our product guide for more details.
5 Custom sizes are available upon request.

Technical Services Available

For Canadian Technical inquiries, please contact our technical team at owenscorning.ca/contacttech.


Environmental and Sustainability

Owens Corning is a worldwide leader in building material systems, insulation, and composite solutions, delivering a broad range of high-quality products and services.

Owens Corning is committed to driving sustainability by delivering solutions, transforming markets, and enhancing lives. More information can be found at owenscorning.ca or owenscorninglibrary.ca.


Disclaimer of Liability
Technical information contained herein is furnished without charge or obligation and is given and accepted at recipient’s sole risk. Because conditions of use may vary and are beyond our control, Owens Corning makes no representation about, and is not responsible or liable for, the accuracy or reliability of data associated with particular uses of any product described herein. Owens Corning reserves the right to modify this document without prior notice.
LEED® is a registered trademark of the U.S. Green Building Council.
Green Globes® is a registered trademark of Green Building Initiative, Inc.
UL® and the UL® logo are trademarks of UL LLC.
INTERTEK and the Intertek logo are registered trademarks of Intertek Group plc.

Notes
For additional information, refer to the Safe Use Instruction Sheet (SUIS) found in the SDS Database via sds.owenscorning.com.
Certification Logos

Applications

  • Walls

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