Flex ISO II Tapered Roof Insulation User Manual

Tapered acfoam, Ii insulation, Data sheet

(770) 952-1442 • ATLAS ROOFING CORPORATION • 2000 RIVEREDGE PARKWAY, SUITE 800 • ATLANTA, GA • 30328 • www.AtlasRoofing.com

Data Sheet

Other than the aforementioned representations and descriptions, Atlas Roofing Corporation (hereafter, “Seller”) makes no other representations or warranties as to the insulation sold herein. The Seller disclaims all other warranties,
express or implied, including the warranty of merchantability and the warranty of fitness for a particular purpose. Seller does, however, have a limited warranty as to the LTTR-Value of the insulation, the terms of which are available
upon request from the Seller. Seller shall not be liable for any incidental or consequential damages including but not limited to the cost of installation, removal, repair or replacement of this product. Buyer’s remedies shall be limited
exclusively to, at Seller’s option, the repayment of the purchase price or resupply of product manufactured by Atlas in a quantity equal to that of the nonconforming product. Atlas distributors, agents, salespersons or other independent
representatives have no authority to waive or alter the above limitation of liability and remedies.

Physical ProPerties

thermal Data

ProPerty

test methoD

results

Dimensional Stability

ASTM D2126

< 2%

Compressive Strength

ASTM D1621

20 psi (140 kPa) or

25 psi (172 kPa)

Water Absorption

ASTM C209 & D2842

< 1.5%, < 3.5%

Water Vapor Transmission

ASTM E96

< 1.5 perm (85.5ng/(Pa•s•m

))

CAN/ULC

>60.0ng/ (Pa•s•m

)

Product Density

ASTM D1622

Nominal 2.0 pcf (32.04 kg/m

)

Flame Spread

ASTM E84 (10 min.)

40-60

Smoke Development

ASTM E84 (10 min.)

50-170

Tensile Strength

ASTM D1623

> 730 psf (35 kPa)

Service Temperature

-100° to + 250°F

Panel label

average

thickness

sloPe

lttr

rsi

per ft.

percent

4.2

0.74

0.5-1.0

12-25

1/8"

7.0

1.24

1.0-1.5

25-38

1/8"

9.9

1.75

1.5-2.0

38-50

1/8"

12.9

2.28

2.0-2.5

50-63

1/8"

5.6

0.99

0.5-1.5

12-38

1/4"

11.4

2.01

1.5-2.5

38-63

1/4"

8.5

1.5

0.5-2.5

12-63

1/2"

Numerical ratings are not intended to reflect performance under actual fire conditions. Flame spread index of ≤ 75
and smoke development ≤ 450 meet code requirements for foam plastic roof insulation. Codes exempt foam plastic
insulation when used in FM 4450 or UL 1256. Physical properties listed above are presented as typical average
values as determined by accepted ASTM test methods and are subject to normal manufacturing variation.

• ASTM C1289, Type II, Class 1, Grade 2 (20 psi) or Grade 3 (25 psi)

• CAN/ULC-S704, Type 2, Class 3 or Type 3, Class 3

• CCMC No. 12464-L

• UL Certified for Canada – Insulated Roof Deck Assemblies Construction

No. C38 and 52, Meets CAN/ULC-S126, CAN/ULC-S101 and CAN/ULC-S107

• UL Standard 1256 Classification – Construction No. 120, 123 & 292

• UL Standard 790 (ASTM E108) Roofing Systems Classification

• UL Standard 263 (ASTM E119) Fire Resistance Classification

• UL Standard 1897 Uplift Resistance

• FM Standard 4450/4470 Approved

Refer to FM Approvals

RoofNav for Specific System Details

• IBC Chapter 26 & NBC Sections on Foam Insulation

• California State Insulation Quality Standards and Title 25 Foam

Flammability Criteria (License #TC 1231)

• Miami-Dade County Approved

• State of Florida Product Approval (FL6796)

LTTR (long term thermal resistance) values were determined in accordance with CAN/ULC-S770-09. Test samples
were third-party selected and tested by an accredited material testing laboratory. The LTTR results were reviewed by
FM Global and certified by the PIMA Quality Mark Program.

RSI is the metric expression of R-value (m

• K/W).

Tapered aCFoam

-II InsulaTIon

DescriPtion:

aDvantages:

aPPlication:

installation:

Closed-cell polyisocyanurate (polyiso) foam core integrally bonded to non-asphaltic, fiber-reinforced organic felt facers. Tapered ACFoam

-II

is offered in a variety of slopes, to achieve positive drainage as well as long-term thermal resistance (LTTR). Available in 4ft x 4ft (1220mm x
1220mm) panels with 1/8" (3mm), 1/4" (6mm) and 1/2" (12mm) per foot slope. Manufactured in accordance with

ASTM C1289, Type II, Class

1, Grade 2 (20 psi) or Grade 3 (25 psi) and CAN/ULC-S704 Type 2, Class 3 or Type 3, Class 3.

Tapered ACFoam

-II is manufactured using CFC-, HCFC- and HFC-free foam blowing technology with zero ozone depletion potential (ODP)

and virtually no (negligible) global warming potential (GWP). Tapered ACFoam

-II contains between 67.5% and 28.9% recycled materials by

weight (Atlas Technical Bulletin: TB-2).

Manufactured and tested for use in new and re-roofing applications. Tapered ACFoam

-II is used in built-up (BUR), modified bitumen, ballasted

single-ply, mechanically attached single-ply and adhered single-ply roofing systems. These roofing systems depend on proper installation for
successful performance. Refer to FM Approvals

RoofNav and UL Online Certifications Directory for additional application details.

Tapered ACFoam

-II shall be kept dry before, during and after installation. This product will burn if exposed to an ignition source of sufficient

heat and intensity. Do not apply flame directly to Tapered ACFoam

-II insulation. Refer to PIMA Technical Bulletin 109: Storage and Handling

Recommendations for Polyiso Roof Insulation. Typical field fastening requirements can be obtained from membrane system manufacturer or
FM Global Property Loss Prevention Data Sheets 1-29.

Prior to installation, Atlas Roofing Corporation recommends that you consult your local building codes, contract documents, professional
engineer, FM Global, Miami-Dade County and membrane manufacturer for additional installation guidelines as well as design enhancements.