Bid RFI Response Attachments v2 (Informational).pdf

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Crow Renovation Phase II
Solicitation number
75H70126R00054
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About this file

This document is a comprehensive federal contract package for a roof replacement project at the Crow-Northern Cheyenne Hospital on the Crow Reservation in Montana, under contract number 75H701-20-C-00019 with the Billings Area Indian Health Service.

The project involves complete removal of existing single-ply roofing, flashing, and related debris, followed by installation of a new Flex Membrane PVC roofing system across approximately 74,200 square feet. MIWOK Construction, LLC (Las Vegas, Nevada) is the contractor, with work supervised by project manager Gary Collins and engineer Todd Rydquist (Billings Area IHS). Key deliverables include installation of Flex MF/R 60 mil white PVC membrane with hot air welded seams in mechanically fastened and adhered configurations across three roof zones (upper, lower, and small roof areas), complete flashing systems with aluminum termination bars and metal coping, replacement of roof drains with Josam 21500 series or alternative Flex Hercules RetoDrains, reinstallation of the lightning protection system with an 8-inch PVC separator strip, and comprehensive documentation including shop drawings and detail drawings. The scope includes pre-construction infrared thermography scanning to identify wet insulation areas (with 10% replacement contingency), removal and replacement of damaged insulation and cover board, and installation per FM Global RoofNAV Assembly 339458-0-0 specifications for an FM1A-90 wind uplift rating. MIWOK Construction provides a two-year material and workmanship warranty, while Flex Membrane International Corp. provides a 20-year material and labor warranty, both effective from the July 27, 2021 completion date. The project includes detailed specifications for fastener placement, seam welding requirements, perimeter and corner securement protocols, and maintenance recommendations for the building owner.

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VARIATION FOR CE USE CODE

SPEC. PARA. NO. DRAWING SHEET

NO.

a. c. d. e. f. g. h. I.

28 Data Sheet 1 1.2

29 Data Sheet 1 1.2

30 Data Sheet 1 1.2

31 Data Sheet 1 1.2

32 Data Sheet 1 1.2

33 Data Sheet 1 1.2

34 Data Sheet 1 1.2

35 Data Sheet 1 1.2

36 Data Sheet 1 1.2

37 Data Sheet 1 1.2

38 Data Sheet 1 1.2

TO: FROM: CONTRACT NO. CHECK ONE:

THIS IS A NEW TRANSMITTAL

RESUBMITTAL OF TRANSMITTAL

TRANSMITTAL OF POLYVINYL-CHLORIDE (PVC) ROOFING

DATE TRANSMITTAL NO.

SECTION I - REQUEST FOR APPROVAL OF THE FOLLOWING ITEMS (This section will be initiated by the contractor)

CHECK ONE: THIS TRANSMITTAL IS FOR

FIO GOV'T APPROVAL

ITEM NO. MFG OR CONTR. CAT.,

CURVE DRAWING OR

BROCHURE NO.

NO. OF

COPIES

CONTRACT REFERENCE

DOCUMENT

FPR CONTRACTOR

USE CODE

b.

FLEX 60 mil PVC Tech Data

FLEX Nonreinforced Detail Membrane Tech Data

FLEX Split Pipe Boot Tech Data

SPECIFY SEC. NO. PROJECT TITLE AND LOCATION

Flex LVOC LA432M Adhesive Tech Sheet

Flex Single Ply Sealant Tech Data

Flex-ISO-II-Tapered-Data-Sheet

DensDeck-Prime-Product-Sheet

FLEX Preformed Pipe Flange Tech Data

FLEX T Joint Cover Tech Data

FLEX Trim Strip Sheet 8 Inch Wide Tech Data

FLEX Inside and Outside Corners Tech Data

ENCLOSURES RETURNED (LIST BY ITEM NUMBER) NAME, TITLE AND SIGNATURE OF APPROVING AUTHORITY DATE

I certify that the above submitted items have been reviewed in detail and are correct and in strict conformance with the contract drawings and specifications except as other wise stated.

SECTION II - APPROVAL ACTION

X

11-19-2020 0000-1

Billings Area Indian Health Service Todd Rydquist, PE P.O. Box 36600 2900 4th Ave. N.

Billings, MT 59101

MIWOK Construction, LLC.

9960 W. Cheyenne Ave. Ste. 290 Las Vegas, NV 89129

75H701-20-C-00019

SECTION 075419 PRODUCT DATA CROW-NORTHERN CHEYENNE HOSPITAL ROOF REPLACEMENT

MIWOK Construction, LLC.

DESCRIPTION OF ITEM SUBMITTED

Gary Collins

X

Flex Membrane International Corp. 2670 Leiscz’s Bridge Road, Suite 400, Leesport, PA 19533 Tel: (610) 916-9500 Fax: (610) 916-9501 www.FlexRoofingSystems.com

Product Data Sheet

FLEX MF/R 60 PVC ROOF MEMBRANE

(60”, 81” and 120” Wide, Reinforced, Thermoplastic Roof Membrane)

PRODUCT DESCRIPTION

The Flex MF/R 60 PVC (polyvinyl chloride) Roofing Membrane is a high-performance thermoplastic membrane designed for mechanically attached or adhered roofing applications. The Flex MF/R 60 PVC is produced with high grade polyvinyl chloride resins into a polyester reinforced roofing membrane with built in chemical, UV and fire resistance. The Flex MF/R 60 PVC white membrane results in a highly reflective, low maintenance roof surface that saves the Building Owner energy and labor costs and helps reduce pollution in the surrounding environment.

FEATURES AND BENEFITS

120” wide membrane saves in labor costs for installation - 20% less seams to weld.

120” wide membrane saves in material costs - 20% less fasteners and plates.

Hot air welded seams are the strongest, most reliable seams in the roofing industry.

Chemical, Ozone and UV exposure do not affect surface pliability or functional integrity.

Energy Saving Reflective Roof Surface is more in demand than ever before.

Effectively tested to perform in high wind situations - meets or exceeds FM Class 1-90 wind uplift requirements.

Increased cold weather flexibility allows installation in below freezing temperatures.

Available in White, Gray and Tan colors.

MECHANICALLY ATTACHED INSTALLATIONS

The Flex MF/R 60 PVC membrane is ideal for use as a mechanically attached membrane for new construction and re-roofing. Flex’s MF/R 60 PVC membrane is lightweight, just a few ounces per square foot, making it ideal for re-roofing projects where a tear off can be avoided. Flex has several fastener and plate options available to meet a wide range of wind uplift pressure requirements.

ADHERED INSTALLATIONS

The Flex MF/R 60 PVC Roofing Membrane can be installed with Flex’s Bonding Adhesive for a fully adhered installation. This system is ideal for installations with unusual or odd shaped contours. Fully adhered installations are the answer for design limitations on mechanical penetrations of the deck or for situations where increased wind uplift pressure requirements must be met.

APPROVALS

The Flex MF/R 60 PVC Roofing Membrane exceeds the requirements of ASTM D4434 standard for poly (vinyl chloride) thermoplastic sheet roofing. The Flex MF/R 60 PVC Roofing Membrane meets and exceeds Factory Mutual's 1-90 wind uplift requirements in numerous adhered and mechanically attached roof applications and meets Underwriters Laboratories Class A fire rating.

(08/2017) Page 2

PHYSICAL PROPERTIES

Property Test Procedure Specification Color White, Gray, Tan Thickness ASTM D751 .060” nominal Thickness over scrim ASTM D7635 .030” Roll Size 60” x 100’

81” x 100’ 120” x 100’ Weight 6.55 oz./ft² Breaking Strength ASTM D751 375 x 343 (minimum, lbf/in.)

Seam Strength ASTM D751 297 lbf Elongation @ Break ASTM D751 91 % x 97% Heat Aging ASTM D3045 >90% Tear Strength min. lbf. ASTM D751 58 x 82 Low Temperature Bend ASTM D2136 PASS (-40ºF) Static Puncture Resistance ASTM D5602 PASS @ 33 lbs.

Dynamic Puncture Resistance ASTM D5635 PASS @ 20 J Dimensional Change ASTM D-1204 0.25% (maximum %) (@ 176º F, 6 hours) Water Immersion ASTM D-570 1.96% Accelerated Weathering ASTM G-155 PASS Solar Reflectivity ASTM C1549 82% (White) ASTM C1549 68% (Gray) ASTM C1549 69% (Tan)

Emissivity ASTM C1371 .91 (White) ASTM C1371 .87 (Gray) ASTM C1371 .85 (Tan)

SRI ASTM E1980 109 (White) ASTM E1980 82 (Gray) ASTM E1980 83 (Tan)

Flex MF/R PVC membrane is thermoplastic in nature and exceeds the requirements of ASTM D4434 standard specification for poly (vinyl chloride) sheet roofing.

WARRANTY

The Flex MF/R 60 PVC Roofing Membrane may receive the manufacturer's standard five (5) year, ten

(10) year, fifteen (15) year or twenty (20) year guarantee of watertightness.

Perimeter Half Rolls

Field Rolls

(01/2017)

FLEX MF (NON-REINFORCED) PVC KEE DETAIL MEMBRANE

The Flex MF PVC KEE Detail Membrane is specifically designed for use in flashing areas where the membrane needs to conform to more detailed areas or areas where a reinforced flashing membrane will not conform as needed. The Flex MF Detail Membrane is a non-reinforced PVC membrane made with

DuPont Elvaloy KEE for membrane durability and overall longevity. The Flex MF Detail Membrane is installed by the hot-air welding method, 2” minimum weld. The Flex MF Detail Membrane is available in roll size of 24” x 50’ with a thickness of .055”.

PHYSICAL PROPERTIES

Property Test Procedure Specification Color White, Gray or Tan

Thickness ASTM D751 .055” Nominal

Roll Weight 40 lbs.

Tensile Strength ASTM D638 2100 x 1950 psi

Elongation ASTM D751 >250%

Heat Aging ASTM D3045 90% of Original

Tear Resistance ASTM D1004 12 lbf.

Low Temperature Bend ASTM D2136 (-40 °F) PASS

Peel Strength ASTM D903 30 lbf./in.

Accelerated Weathering ASTM G155 PASS

Dimensional Stability ASTM D 1204 3% max.

Weight Change After ASTM D570 3% max.

Immersion in Water

Flex MF Detail Membranes are thermoplastic in nature and exceed the requirements of ASTM D4434 standard specifications for poly (vinyl chloride) sheet roofing.

Elvaloy

KEE is a registered trademark of DuPont.

FLEX SPLIT PIPE BOOTS

The Flex Split Pipe Boot is factory produced from Flex’s 45 Mil MF/R Elvaloy® Flashing Membrane.

The Flex Split Pipe Boot prefabricated pipe flashing may be used on all pipe shaped roof penetrations but was specifically designed for installation in areas where access to the top of the pipe penetration is limited or impossible. The Flex Split Pipe Boot is manufactured in sizes that allow for flashing pipe type penetrations from 1” to 12” in diameter.

Color White, Gray or Tan Sizes 1” to 3” 3” to 5” 6” to 8” 9” to 11” Thickness ASTM D751 0.045” Breaking Strength ASTM D751 325 lbf.

Elongation ASTM D751 50% Accelerated Weathering ASTM G155 Pass Low Temperature Bend ASTM D2136 Pass -40°F

Flex MF/R Elvaloy® Flashing Membranes are thermoplastic in nature and exceed the requirements of ASTM D4434 standard specification for poly (vinyl chloride) sheet roofing.

INSTALLATION

Complete installation instructions are available by consulting current Flex Specifications and Details. If there are any questions involving the specifications or details or if more information is required please contact the Flex Technical Service Department.

1. Determine that the area intended to receive the Flex Split Pipe Boot prefabricated pipe flashing is clean and properly prepared for the hot air welding procedure.

2. Wrap the Flex Split Pipe Boot prefabricated pipe flashing around the pipe overlapping at the seam a minimum of 2”.

3. Hot air weld the seam at the transition from vertical to horizontal.

4. Hot air weld the vertical seam and follow by welding the horizontal seam.

Sizes vary and will be determined during roof construction

5. Inspect the welded seams by probing the seams thoroughly with a seam probe. Re-weld as necessary.

The completed weld should be a minimum of 1.5” in width.

6. Complete the installation by installing a stainless steel hose clamp and approved caulking at the top of the vertical flashing.

STORAGE

Store in original unopened containers at temperature range of not less than 40°F to no higher than 105°F.

LIMITATIONS

Caution should be taken in transporting the material so as not to allow physical damage such as abrasion or punctures.

Elvaloy® is a registered trademark of Dupont.

FLEX PIPE FLANGE

The Flex Pipe Flange is prefabricated for quick and easy flashing installations. The Flex Pipe Flange can be cut to fit various dimensions of 1” to 4 ½” in diameter. The Flex Pipe Flange is installed by the hot air welding method. The Flex Pipe Flange facilitates labor savings and ensures a quality installation.

Color White, Gray or Tan Size 7” in height / fits diameters up to 4 1/2” Thickness ASTM D638 .085” Nominal Specific Gravity ASTM D792 1.32g/cm/3 Tensile Strength ASTM D638 >2500 PSI Elongation ASTM D638 >300 Heat Aging ASTM D3045 90% of Original Cold Resistance ASTM D1043 -40 Degrees F Water Vapor Permeability ASTM E96 2.8g/m²/day Dimensional Stability ASTM D1240 0.5% or less U.V. Stability Xenon Arc 150 10,000 hrs. (Excellent)

*All Flex Pipe Flange applications require metal clamps to be installed at the top of preformed flange and sealed with an approved caulking applied.

FLEX ELVALOY® KEE T-JOINT COVER

GENERAL

Flex Elvaloy® KEE T-Joint Covers are used to seal step-offs at splice intersections. Installation is mandatory on all Flex Elvaloy® KEE Thermoplastic Roof systems with a membrane thickness greater than 45 mil and on 45 mil systems where step-offs have not been properly sealed. Flex Elvaloy® KEE T- Joint Covers are made from 45 mil non-reinforced flashing cut into a 4.5” diameter circle. Packaged in units of 100 covers. Available in white, tan and gray.

PRODUCT INFORMATION

Size: 4.5” Thickness: 0.045” Packaging: 100 per unit Weight (per box): 4.0 lbs.

Material: Non-reinforced Elvaloy® KEE Flashing Color: White, Tan, Gray

CAUTIONS AND WARNINGS

1. The Flex Elvaloy® KEE T-Joint Cover is not intended for use to overlay fasteners and plates as this requires the use of reinforced membrane.

2. Store Flex Elvaloy® KEE T-Joint Covers in a cool, shaded area and cover with light colored, breathable, waterproof tarpaulins.

INSTALLATION

1. Clean splice intersection area with Flex Membrane Cleaner.

2. Use a lower temperature setting on the heat welder than compared to welding reinforced membrane. (Typically a setting of “6” on a scale of “10” is appropriate for welding

Elvaloy® KEE T- Joint Covers.)

3. Center the Flex Elvaloy® KEE T-Joint Cover over the splice intersection, begin welding at the center point and work towards the outside. Use the edge of the roller to crease the T-Joint Cover into membrane step-offs to achieve a proper seal.

4. Using a probe, check all splices for voids and cold-welds. Make any needed repairs.

Elvaloy® is a registered trademark of DuPont.

FLEX 8” TRIM STRIP

The Flex MF/R Plus Elvaloy® Roofing Membrane 8” Trim Strip is specifically designed to be used as a strip-in membrane for FlexClad Metal perimeter edge and flashing details. The Flex 8” Trim Strip is also installed with Flex Fleeceback Membrane for end joint details and for patch installations. The Flex MF/R

Plus is produced with DuPont Elvaloy® KEE and is a polyester reinforced roofing membrane with built in chemical, UV and fire resistance. Flex 8” Trim Strip is installed by the hot-air welding procedure, 2” minimum weld.

Colors White, Gray or Tan

Thickness ASTM D751 .060”

Breaking Strength (lbf) ASTM D751 298 x 278

Seam Strength (lbf) ASTM D751 286

Tear Strength (lbf) ASTM D751 89 x 109

Elongation ASTM D751 35% x 34%

Heat Aging ASTM D3045 > 90 %

Static Puncture Resistance ASTM D5602 PASS

Dynamic Puncture Resistance ASTM D5635 PASS

Low Temperature Bend ASTM D2136 PASS (-40ºF)

Permeance ASTM E96 .003 Perms

Dimensional Stability ASTM D1204 0.3%

Wt. Change after Water Immersion ASTM D570 1.20%

Accelerated Weathering ASTM G155 Pass

Fungi Resistance ASTM G21 Pass

Solar Reflectivity ASTM C1549 .82 (white)

Emissivity ASTM C1371 .91 (white)

SRI ASTM E1980 109 (white)

Flex Elvaloy® based membranes meet the requirements of ASTM D4434 standard specification for poly (vinyl chloride) based sheet roofing.

Elvaloy® is a registered trademark of Dupont.

For LP Conductor separator and new PVC Roof

FLEX INSIDE AND OUTSIDE PREFABRICATED CORNERS

Color White, Gray or Tan

Size Inside Corner 2 3/4" Height x 2 3/4" Width x 2 3/4" Depth Outside Corner 2 3/4" Height x 5 1/2" Width x 2 1/2" Depth

Thickness ASTM D-638 .070" Nominal

Specific Gravity ASTM D-792 1.32g/cm/3

Tensile Strength ASTM D-638 >2500 PSI

Elongation ASTM D-638 >300%

Heat Aging ASTM D-3045 90% of Original

Cold Resistance ASTM D-1043 -400 F

Water Vapor Permeability ASTM E-96 2.8g/m2/day

Dimensional Stability ASTM D-1240 0.5% or less

U.V. Stability Xenon Arc 150 10,000 hrs. Excellent

APPLICATION

Hot air welded to Flex flashing and/or field membranes.

FLEX LA432M

LOW VOC ELVALOY® AND PVC MEMBRANE BONDING ADHESIVE

Flex LA432M is a contact-type bonding adhesive specially designed for bonding Elvaloy® and PVC single ply roofing membranes and flashings to horizontal and vertical substrates. Flex LA432M has been engineered to provide ultimate bonding strength and to meet all VOC restrictions and regulations in the United States.

FEATURES AND BENEFITS

• Low VOC -<250g/L

• Extremely high initial tack

• Fast drying solvent system

• Easy application using roller or brush

• Excellent green strength

• High peel and shear values

• Excellent heat resistance

FLAMMABILITY Red Label – EXTREMELY FLAMMABLE

1. Use only after careful consideration of the warnings, directions, and first aid instructions given.

2. Apply adhesive when ambient temperature is 40ºF (4.4ºC) and rising.

3. Stir the adhesive vigorously by hand to achieve a homogeneous mixture prior to application. DO

NOT use electrical equipment or open flame near the adhesive.

4. Apply adhesive to the membrane and substrate surfaces which are clean, dry and free of debris.

Apply at the rate of approximately 120 square feet per gallon per surface, sufficient to bond 60 square feet of membrane in place. The coverage rate will vary depending on the porosity of the substrate surface.

5. Apply adhesive using a 3/8” medium nap solvent resistant roller.

6. Allow adhesive to partially dry to a tacky feel when touched with the back side of a dry finger before bonding membrane to substrate (approximately 5-10 minutes). Open time prior to mating membrane to substrate may extend up to 60 minutes.

7. Mate the membrane to the substrate avoiding any air entrapment, and apply pressure by means of a push broom or roller to assure complete bonding.

NOTE: The shelf life for an unopened container of this adhesive, stored at temperatures between 60ºF (15.5 ºC) and 80 ºF (26.7 ºC) out of direct sunlight, is 1 year from date of manufacture

Base: Synthetic polymer Total Solids: 24% +/- 1% Solvent: Ketone blend Voc Content: 199.4 grams/liter Flash Point: <0ºF (-18ºC) Shelf Life: 1 year, unopened Weight/Gallon: 7.08lbs Open Time: Up to 60 minutes Color: Natural Dry Time: 5-10 minutes Viscosity: 1,800-2,400 cps Application: Roller or brush Coverage: 60 sq. ft/gallon bonded

CAUTION

• Keep out of reach of children

• Product for professional or industrial use only

• Sale to consumer is in violation of federal law

• Do not use if you cannot read, or do not understand all directions, cautions and warnings.

• See MSDS for More Information

Flex Membrane International maintains Material Safety Data Sheets on all of its products.

Material Safety Data Sheets contain health and safety information for your development of appropriate product handling procedures to protect your employees and customers.

Flex’s Material Safety Data Sheets should be read and understood by all of your supervisory personnel and employees before using Flex products in your facilities.

ATTENTION: Empty container may still contain pressure and remains hazardous until all flammable vapors, which may explode upon ignition, are gone from residue and container. Observe all labeled hazard precautions. Do not cut, puncture, or weld while hazard exists. Dispose of according to all federal, state, and local regulations.

Notice To Purchaser: NO WARRANTIES, EXPRESS OR IMPLIED ARE MADE INCLUDING

MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE. UNDER NO

CIRCUMSTANCES SHALL FLEX MEMBRANE INTERNATIONAL CORP BE LIABLE FOR ANY LOSS OR

DAMAGE ARISING FROM THE PURCHASE, USE, OR INABILITY TO USE THIS PRODUCT, OR FOR

ANY SPECIAL, INDIRECT INCIDENTAL, OR CONSEQUENTIAL DAMAGES. THE USER MAY SEND A

SAMPLE OF PRODUCT TO FLEX FOR TESTING. IF SUCH TESTING PROVES A PRODUCT DEFECT,

THE USER’S SOLE AND EXCLUSIVE REMEDY IS EITHER REIMBURSEMENT OF THE PURCHASE

PRICE OF THE PRODUCT OR REPLACEMENT OF THE CONTAINER OF PRODUCT. NO FABRICATOR,

INSTALLER, DEALER, AGENT OR EMPLOYEE OF FLEX HAS THE AUTHORITY TO MODIFY THE

OBLIGATIONS OR LIMITATION OF THIS WARRANTY. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state; therefore, some of the limitations stated above may not apply to you. It is to your benefit to save your documentation of purchase of a product.

Please direct all inquiries regarding performance of this product to:

Flex Membrane International Corp.

2670 Leiscz’s Bridge Road Suite 400 Leesport, PA 19533 Phone: 800-969-0108 Fax: 610-916-9501

Elvaloy® is a registered trademark of DuPont.

FLEX SINGLE PLY SEALANT

Flex Single Ply Sealant is a one-part, elastomeric sealant used to seal edges around flashing terminations in all single ply systems. The Flex Single Ply Sealant is available in the color of white.

PACKAGING AND COVERAGE

*Coverage, open and dry times can vary dramatically depending on the particular substrate and environmental conditions. Coverage rates stated herein are approximate only.

*Typical Values. Results can vary depending on product age and conditioning.

ENERGY AND ENVIRONMENT

1. Apply to clean, dry, smooth substrates between 40°F and 120°F (4°C and 48°C).

2. Refer to the application instructions guidelines for proper utilization of this caulk.

Container Size Carton of 30 - 10.3 oz. (304.6 ml) tubes Shipping Weight (approx.) 22 lb. (9.9 kg)/carton Coverage Rate* (approx.) 20 ln. ft. (6.09 ln. m)/tube Cartons/Pallet 36

Weight/Unit Sag/Slump - ASTM D2202

11.8 lbs/gal (1.41 kg/l) No Sag

Press Flow/Extrusion Rate (ASTM D2452) 45° F (7.2°C) 70°F (21.1°C) 95°F (35.0°C)

5.3 sec/ml 2.8 sec/ml 1.4 sec/ml

Maximum VOC <450 g/l by calculation

Tel: (610) 916-9500 Fax: (610) 916-9501 www.FlexRoofingSystems.com Flex Item #8840 Page 2

STORAGE

When Flex Single Ply Sealant is stored in a clean, dry, indoor environment, out of direct sunlight, and in the original unopened container between 60°F and 80°F (16°C and 27°C), the shelf life is 1 year from manufacture date. DO NOT ALLOW TO FREEZE.

CAUTION

Flex Single Ply Sealant is a combustible material and should be shipped and stored away from open flames, heat or sources of ignition. Keep all cartons tightly sealed while in storage. It should be used only in well-ventilated areas. It may cause eye, skin and respiratory irritation, and is harmful or fatal if swallowed. Avoid contact with skin. Use impervious clothing and rubber gloves to avoid prolonged or repeated contact with skin. Read the container label and follow all safety instructions.

Flex Membrane International maintains Material Safety Data Sheets on all of its products.

Material Safety Data Sheets contain health and safety information for your development of appropriate product handling procedures to protect your employees and customers.

Material Safety Data Sheets should be read and understood by all of your supervisory personnel and employees before using Flex products in your facilities.

FLEX ISO II TAPERED ROOF INSULATION

PRODUCT DATA SHEET

Closed-cell polyisocyanurate (polyiso) foam core integrally bonded to non-asphaltic, fiber-reinforced organic felt facers. Flex ISO II tapered roof insulation 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.

DESCRIPTION:

APPLICATION: Manufactured and tested for use in new and re-roofing applications. Flex ISO II tapered insulation is used in built-up (BUR), modified bitumen, metal, ballasted single-ply, mechanically attached single-ply and adhered single-ply roofing systems. These roofing systems depend on prop-er installation for successful performance. Refer to FM Approvals® RoofNav and UL Online Certifications Directory for additional application details.

INSTALLATION: Flex ISO II tapered insulation 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 Flex ISO II tapered insulation. Refer to product packaging and PIMA Technical

Bulletin #109 for storage and handling recommendations. Typical field fastening requirements can be obtained from membrane system manufacturer or FM Global Property Loss Prevention Data Sheets 1-29.

Prior to installation, Flex Membrane International Corp. 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.

ADVANTAGES: Flex ISO II tapered insulation 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). Flex ISO II tapered roof insulation contains between 62.9% and 28.9% recycled materials by weight.

Other than the aforementioned representations and descriptions, Flex Membrane International Corp. (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 distributed by Flex Membrane International Corp. in a quantity equal to that of the nonconforming product. Flex distributors, agents, salespersons or other independent representatives have no authority to waive or alter the above limitation of liability and remedies.

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.

2RSI is the metric expression of R-value (m2 • K/W).

1Numerical 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.

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•m2))

PRODUCT DENSITY ASTM D1622 Nominal 2.0 pcf (32.04 kg/m3)

FLAME SPREAD ASTM E84 (10 min.) 140-60

SMOKE DEVELOPMENT ASTM E84 (10 min.) 150-170

TENSILE STRENGTH ASTM D1623 > 730 psf (35 kPa)

SERVICE TEMPERATURE - -100° to +250°F

PHYSICAL PROPERTIES THERMAL DATA

PANEL

LABEL

AVERAGE THICKNESS SLOPE

LTTR 2RSI IN MM PER FT. PERCENT

AA 4.3 0.76 0.5-1.0 12-25 1/8” 1%

A 7.1 1.25 1.0-1.5 25-38 1/8” 1%

B 10.0 1.76 1.5-2.0 38-50 1/8” 1%

C 12.9 2.27 2.0-2.5 50-63 1/8” 1%

X 5.7 1.00 0.5-1.5 12-38 1/4” 2%

Y 11.4 2.01 1.5-2.5 38-63 1/4” 2%

Q 8.6 1.51 0.5-2.5 12-63 1/2” 4%

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. Meet 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

Miami-Dade County Approved

800-969-0108 • Flex Membrane International Corp. • 2670 Leiscz’s Bridge Road • Leesport, PA • 19533 • www.FlexRoofingSystems.com

Features Reduces adhesive use in single-ply systems by up to 50 percent

Fewer fasteners required for higher wind uplift resistance

Minimizes blistering during torch application of modified bitumens

Darker color that accelerates drying of surface after moisture exposure

Glass mat is encapsulated with coating

High-strength bonds with both adhesive and modified bitumen

Allows uniform drying of single-ply adhesives and cold mastics

Moisture-resistant core

Glass mats embedded into core on both faces

Benefits Significant cost savings

Lower installation cost

Allows for a more consistent bond

Diminishes risk of trapped moisture

Reduces skin irritation from exposed glass fibers

Improves wind uplift performance and reduces fastener requirements

Facilitates a more consistent bond without blisters

Superior mold and fire resistance

Results in dimensional stability and prevents warping

Non-Asphaltic, Integral Surface Treatment

Min. 500 psi Moisture-Resistant Treated Gypsum Core

Non-Woven Glass Mats Embedded into Both Faces

Featuring a non-asphaltic, integral surface treatment for an enhanced bond and reduced fasteners.

All the properties of DensDeck, PLUS…

• Creates a more consistent, stronger bond

• Reduces adhesive requirements

• Fewer fasteners required

• Allows for uniform drying time

Uses:

• Fully-adhered single-ply systems

• Torch and cold-applied modified bitumen systems

• Other commercial roofing systems where a sealed surface is desirable for a highly consistent bond

DensDeck Prime® Properties, Standards and Classifications 1⁄4� DensDeck Prime 1⁄2� DensDeck Prime 5⁄8� DensDeck Prime Fireguard®

Thickness, inches, nominal 1⁄4�+1⁄16� 1⁄2�± 1⁄32� 5⁄8 �± 1⁄32�

Width, standard 4�± 1⁄8� 4�± 1⁄8� 4�± 1⁄8�

Length, standard8 4� and 8�± 1⁄4� 8�± 1⁄4� 8�± 1⁄4�

Weight, lbs./sq. ft., nominal 1.15 1.975 2.55

Surfacing Glass mat Glass mat Glass mat Treatment to one side Non-asphaltic coating Non-asphaltic coating Non-asphaltic coating

Flexural Strength4, parallel, lbs. min. 405 805 1005

Flute Spanability1 25⁄8 � 5� 8�

Permeance2, Perms 50 35 32

‘‘R’’ Value3 .28 .56 .67

Linear Variation with Change 8.5x 10-6 8.5x 10-6 8.5x 10-6 in Temp., in/in oF

Linear Variation with Change in 6.25x 10-6 6.25x 10-6 6.25x 10-6

Moisture, in/in %RH

Water Absorption4, % max 10.0 10.0 10.0

Compression Strength, psi nominal 500-900 500-900 500-900

Surface Water Absorption4, 2.0 2.0 2.0grams, nominal

Flame Spread, DFSmoke Developed 0 0 0(ASTM E 84)

Fire Classification FM CLASS 1 FM Class 1 (FM 4450) FM Class 1 (FM 4450) (as overlayment) UL 1256, ULC S-126 UL 1256, ULC S-126 UL 1256, ULC S-126 UL Classified “P” assemblies UL Class A (UL 790) UL Class A (UL 790) ULC Classified “R” assemblies

ULC S-107 ULC S-107 ULC S-101

Class A (UL 790), ULC S-107

Mold and Mildew Resistance No growth7 No growth7 No growth7

FM Approvals6 60 and 90 psf uplift/ FM 1-60, 1-90, 1-135 FM 1-60, 1-90, 1-180 FM Class 1-90 as an overlayment

Bending Radius 5� 8� 12�

®C

C

LASSIFIED

US

1. Tested in accordance with ASTM E 661 (400 lb. conc. load only for 1/2� and 5/8�).

2. Tested in accordance with ASTM E 96 (dry cup method).

3. Tested in accordance with ASTM C 518 (heat flow meter).

4. Tested in accordance with ASTM C 473.

5. ASTM C 1177 minimums.

6. Higher wind uplift ratings have been achieved by numerous membrane manu-facturers using DensDeck Prime in their FMRC-approved construction designs.

7. Tested in accordance with ASTM D 3273.

8. 4� x 4� size available upon special request.

METRO DADE APPROVED

02.0102.01

TRADEMARKS DENSDECK PRIME,

DENSGUARD and FIREGUARD are trademarks of Georgia-Pacific Gypsum LLC.

UPDATES AND CURRENT

INFORMATION The information in this document may change with-out notice. Visit our Web site at www.gpgypsum.com for updates and current information.

LIMITATION OF REMEDIES

AND DAMAGES Unless otherwise stated in our written limited warranty for this product, our sole liability for any product claim shall be limited to reimbursement of the cost of repair or replacement of the affected product, up to a maximum amount of two times the original purchase price for the affected product. We shall not be responsible under any circumstances for lost profits, damage to a structure or its contents, or indirect, incidental, special or con-sequential damages. Claims shall be deemed waived if they are not submitted to us in writing within ten days after discovery.

SAFETY CAUTION: This product contains fiberglass. Fibers and dust may be released from this product during normal handling and may result in skin, eye and respiratory irritation. Avoid breathing dust and contact with the skin and eyes.

Follow these standard work practices:

Wear a loose-fitting, long-sleeved shirt and long pants, protective gloves and eye protection (goggles or safety glasses with side shields). Wear a dust mask when sanding. Additional protection may be needed when very dusty. Do not use a power saw.

For Material Safety Data Sheet or additional information, call 1-800-225-6119 or visit our Web site.

SALES INFORMATION AND ORDER PLACEMENT

U.S.A. Midwest: 1-800-876-4746 West: 1-800-824-7503

South: 1-800-327-2344 Northeast: 1-800-947-4497

CANADA Canada Toll Free: 1-800-387-6823 Quebec Toll Free: 1-800-361-0486

TECHNICAL INFORMATION

Georgia-Pacific Gypsum Technical Hotline U.S.A. and Canada: 1-800-225-6119 Mon.-Fri., 8 a.m.-5 p.m. ET www.gpgypsum.com

©2007 Georgia-Pacific Gypsum LLC. All rights reserved. Printed in the U.S.A. 1/07. GP Lit. Item #102164.

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800-969-0108 • 610-916-9501 (Fax) 2670 Leiscz’s Bridge Road, Suite 400, Leesport, PA 19533 e-mail: flexroof@cs.com • www.flexroofingsystems.com

XHD002 2" Full 1000 20 lb

XHD003 3" Full 1000 29 lb

XHD004 4" 3" 1000 38 lb

XHD005 5" 4" 1000 47 lb

XHD006 6" 4" 1000 56 lb

XHD007 7" 4" 500 34 lb

XHD008 8" 4" 500 38 lb

XHD0010 10" 4" 500 47 lb

XHD0012 12" 4" 500 56 lb

XHD0014 14" 4" 250 32 lb

XHD0016 16" 4" 250 38 lb

PRODUCT DESCRIPTION

The Flex Extra Heavy Duty Roofing Fastener is a specialized, high performance fastener designed to secure roofing materials to certain light gauge steel. O.S.B., or aluminum roof decks.

APPLICATION

The Flex Extra Heavy Duty Roofing Fastener should always be tested on site by a Flex representative to determine performance and proper installation procedure. Call Flex to schedule testing.

SPECIALTY FASTENERS

Fast FactsFast Facts

FEATURES & BENEFITS

• Oversized heavy shank and thread diameters for enhanced pullout resistance in light gauge steel and aluminum roof decks.

• Deep buttress threads further increase pullout resistance.

• Miniature drill point penetrates decks quickly and contributes to exceptional resistance to backout as well as pullout.

COATING

Flex CR-10 corrosion resistant coating exhibits less than 15% red rust after 30 Kesternich cycles. CR-10 coating exceeds F.M. Approval Standard 4470.

PLATES & ACCESSORIES

A variety of plates are available. Contact Flex to determine the appropriate plate for your application.

Head Diameter: .435

Thread Diameter: .275

Head Style: #3 Phillip Truss

Coating: CR-10

Thread PHYSICAL DATA Cat. No. Length Length Packaging Weight

The data below is constant for each Flex Extra Heavy Duty Roofing Fastener.

EXTRA HEAVY DUTY

ROOFING FASTENER

EXTRA HEAVY DUTY

ROOFING FASTENER

Fastener length will vary with Taper System e-mail: flexroof@cs.com • www.flexroofingsystems.com

SPECIALTY FASTENERS

EXTRA HEAVY DUTY ROOFING FASTENER

SPECIFICATION

The fastener will be a Flex Extra Heavy Duty Roofing Fastener with a thread diameter of .275. The fastener must have 12 threads per inch and a drill point. Also, the fastener must be heat treated per specification OMG-1. The Flex Extra Heavy Duty Roofing Fastener will be used with a Factory Mutual approved, Flex round pressure plate or pressure bar. The fastener must be made in America.

COATING REQUIREMENTS

The fastener will be coated with the Flex CR-10 corrosion resistant coating. When subjected to 30 Kesternich cycles (DIN 50018), the fastener must show less than 15% red rust and surpass Factory Mutual Approval Standard 4470.

APPLICATION

The Flex Extra Heavy Duty Roofing Fastener should always be tested on site by a Flex representative to determine performance and proper installation procedure. Call Flex to schedule testing.

Note: Care must be taken not to overdrive the fastener. Fastener must be tight enough so that the plate doesn’t turn. Factory Mutual requires that the fastener penetrates the steel deck at the top flute.

PHYSICAL DATA

Head Diameter: .435 Head Style: #3 Phillips Truss Thread Diameter: .275

PRODUCT DESCRIPTION (STEEL)

Flex Steel Plates are made of Galvalume® coated steel. The round design provides an even distribution of loads and eliminates sharp corners that can damage the insulation or membrane. Flex 2" plates should be used for lap seam fastening. Flex 3" plates should be used when fastening insulation. These plates are designed to be used with Flex fasteners.

PHYSICAL DATA

23⁄8" Galvalume® Barbed Plate

Application: Attaches single-ply membrane to the substrate.

Fastener: Flex Extra Heavy Duty, CD-10, or Purlin

23⁄4" Galvalume® Barbed Plate Application: Attaches single-ply membrane to the substrate.

Fastener: Flex Extra Heavy Duty, Super Extra Heavy Duty, CD-10 or Purlin

3" AccuTrac Galvalume® Plate Application: Attaches insulation to the substrate.

Fastener: Flex Standard, Heavy Duty, or Extra Heavy Duty

PRESSURE PLATES

3" PLASTIC PLATE PL003 3" 1000 25 lb

3" LOCKING PLASTIC PLATE PLL03 3" 1000 25 lb

PHYSICAL DATA Cat. No. Size Packaging Weight

23⁄8" BARBED PLATE SPGA238B 23⁄8" 1000 52 lb

23⁄4" BARBED PLATE SPGA234B-14B 23⁄4" 500 38 lb

3" ACCUTRAC PLATE FLAT BKT6862904 3" 1000 43 lb

3" ACCUTRAC PLATE RECESSED BKT6123904 3" 1000 43 lb

PHYSICAL DATA Cat. No. Size Packaging Weight

800-969-0108 • 610-916-9501 (Fax) 2670 Leiscz’s Bridge Road, Suite 400, Leesport, PA 19533 e-mail: flexroof@cs.com • www.flexroofingsystems.com

PRODUCT DESCRIPTION (PLASTIC)

Flex 2" plates should be used for lap seam fastening.

Flex 3" plates should be used when fastening insulation.

All Flex plates are round and designed to be used with Flex fasteners.

PHYSICAL DATA

3" Plastic Plate Application: Attaches insulation to the substrate.

Fastener: Flex Standard or Heavy Duty Material Polypropylene

3" Locking Plastic Plate Application: Attaches insulation to the substrate.

Fastener: Flex Standard or Heavy Duty Material: Polypropylene

PLASTIC PLATESPLASTIC PLATES

STEEL PLATESSTEEL PLATES

e-mail: flexroof@cs.com • www.flexroofingsystems.com

PRODUCT DESCRIPTION

The Flex Termination Bar is designed to terminate single-ply membrane to parapet walls and other penetrations. A Flex Heavy Duty Fastener or Masonry Anchor should be used to secure the termination bar.

The Flex Termination Bar is made of extruded aluminum (6063 T6 alloy) with a mill finish. Oval holes that measure 1/4" x 3/8" are punched into each bar, with a standard spacing of 6", 8" or 12" on center (O.C.). Flex Termination Bar can be made to order with special hole spacing.

PHYSICAL DATA

Channel Bar Cat. No. CHANB__ (06 08 12) Physical Data: Width: 1"

Thickness: .100 Leg Height: 1/4" Top & Bottom Leg Angle: 90˚ Shipping Weight: 76 lbs/tube

Lip Bar Cat. No. LIPTB__ (06 08 12) Physical Data: Width: 3/4"

Thickness: .090 Lip Width: 3/16" Lip Angle: 45˚ Shipping Weight: 57 lbs/tube

Flat Bar Cat. No. FLATB__ (06 08 12) Physical Data: Width: 1"

Thickness: .090 Shipping Weight: 57 lbs/tube

Heavy Flat Bar Cat. No. FLATB__-18 (06 08 12) Physical Data: Width: 1"

Thickness: .125 Shipping Weight: 74 lbs/tube

Packaging: Each length of termination bar measures 10'.

There are 50 lengths of bar in each tube (500' total). Pallet quantities equal 5,000' (10 tubes).

PRESSURE BARS

TERMINATION BARSTERMINATION BARS

Channel Bar

Lip Bar

Flat Bar

Heavy Flat Bar

FLEX WALKWAY PAD

Flex Walkway Pad is designed to be used as a traffic-bearing rooftop walkway on Flex’s Roofing Systems.

It can also be used as a protection layer around rooftop equipment to protect the roofing membrane from damage. The walkway pad is manufactured in gray or safety yellow colored surfacing that has been designed to highlight traffic and maintenance areas. The traffic-bearing surface provides excellent skid resistance and the low profile does not disrupt roof drainage. Special width and length rolls are also available, as well as custom thickness and color.

Color: Gray or Safety Yellow Size: 2.5’ wide x 60’ long Slip-Resistant Membrane Thickness: 90 mils (nominal) Reinforcement: 1000 denier polyester Tear Strength: 210 lbs x 200 lbs Puncture Resistant: 96 pounds Shore A Durometer: 85 Low Temperature Bend: -40º F Hydrostatic Resistance: 400 psi Dimensional Stability: less than 1%

The Flex Walkway Pad is recommended to be hot air welded to the existing membrane by utilizing the hot air welding method. The Walkway Pad can also be installed with Flex Bonding Adhesive. Walkway Rolls are to be cut in lenghts no longer than 10’ sections, with 2” spacing between sections.

Flex Membrane International Corp. 2670 Leiscz’s Bridge Road,Suite 400, Leesport, PA 19533 Phone 610-916-9500 Fax: 610-916-9501

FLEX MEMBRANE THERMOPLASTIC

MECHANICALLY ATTACHED ROOF MEMBRANE

INSTALLATION GUIDE

This guide is intended to be a point of reference in assisting the Flex Authorized Applicator with installing the Flex Thermoplastic Roof System in accordance to the basic requirements of current Flex Details and Specifications for acceptance of the installation for a roof warranty application.

The installer should always refer to the project specifications for details and application requirements for each unique roof system installation.

1.0 Substrate Preparation

Defects in the substrate surface must be reported and documented to the Building Owner’s Representative for assessment. The roofing contractor shall not proceed with the roof system installation until the defects in the substrate have been corrected.

A.) Recover or Retrofit Roofing Applications: The project specifier shall identify damaged or wet insulation areas. The insulation as indicated shall be cut out and removed from the roof area. The removed insulation shall be replaced with new insulation of the proper size to fill the space (flush with existing surface±1/4”) and obtain a relatively smooth surface acceptable for the installation of the new roof system.

B.) Existing Single Ply Roof Membranes: If the existing membrane is to be left in place it must be cut into sections no larger than 100 square feet per each section.

All flashing must be removed at the perimeter edge, roof drains and roof penetrations.

C.) Gravel Surfaced Built Up Roofing: The loose gravel must be removed either by vacuuming or power brooming. The surface must be leveled to prevent the insulation or recover board from bridging.

D.) All Projects: The substrate must be smooth and relatively even without high spots or depressions. Any accumulated water, ice or snow must be removed to prevent the absorption of moisture in the new roofing components and roofing system.

The substrate shall be clean and free from debris and any other foreign material.

1.1 Vapor or Air Barrier Installation

Install the barrier in accordance with the manufacturer’s written instruction and the project specifications for the installation of the specified product.

1.2 Wood Blocking

A.) Install wood blocking as indicated by the project specifications and in accordance with current Flex Details and Specifications. Blocking is always required at roof edges and roof penetrations.

B.) The wood blocking is installed so the top of wood is flush with the top surface of the roof insulation or cover board.

C.) The wood blocking width is to exceed the width of flange to be attached to the blocking.

D.) The securement of the blocking shall be in a manner to meet or exceed the local building code requirements and the wind uplift pressure resistance required in the project specifications.

1.3 Insulation/Recover Board

A.) Only install as much insulation or recover board that can be covered with roofing membrane and be made watertight in the same day.

B.) Insulation/recover boards are to be installed butted together with no gaps larger than ¼” in the joints acceptable. Gaps in the joints larger than ¼” must be filled.

C.) Top surfaces of the insulation/recover boards are to be aligned and flush with each other.

Differences in the top edge alignment greater than 1/8” are not acceptable.

D.) Insulation/recover board that is to be installed in multiple layers must have the joints staggered between each layer.

E.) Insulation /recover board is mechanically attached to the roof deck with Flex Fasteners and Insulation Plates.

F.) Insulation/recover board is adhered to an approved roof deck with Hot Steep Asphalt or Flex Insulation Board Adhesive.

1.4 Restrictions

A.) Precautions must be taken when installing materials with Hot Steep Asphalt in temperatures lower than 40°F. The hot asphalt must be delivered to the application point at the asphalt manufacturer’s recommended EVT.

B.) Adhesives and sealants must be protected when ambient temperatures are lower than 40°F.

Insulated, heated storage boxes must be provided to store the products on the roof for temporary storage.

C.) Insulation and underlayment must be stored in a manner to keep the products dry and protected from the elements. The products must be stored off the roof surface on skids and covered with a breathable watertight cover.

2.0 Mechanically Attached Membrane Placement and Securement

A.) The substrate must be clean and dry prior to installing the Flex Roof Membrane.

B.) The type of Flex fastener is dependent upon the membrane width and the deck type. The specific type of approved fastener is found in the components section of Flex’s Technical Manual. If the proper fastener cannot be determined, contact the Flex Technical Service Department.

C.) The number of perimeter sheets, the fastening placement density, and the field membrane securement is dependent on the wind uplift pressure resistance required by the project specifications and physical location. Contact the Flex Technical Service Department for assistance if required.

D.) Perimeter sheets are installed in a manner that picture frames the entire roof edge of each roof section.

Note:

1) On projects where there are multiple roof levels and roof levels meet at a common wall, if the difference in height of the roof levels is greater than 3’, the adjacent edge of the higher level is determined to be the perimeter edge. The roof area of the lower level where it meets the wall does not require perimeter sheets.

2) Expansion Joints, control joints, divider and fire walls in the field of the roof or roof ridges with slopes less than 3:12 are not to be considered as part of the roof perimeter.

2.10 Field Membrane Securement

A.) The field membrane sheets are positioned so that adjoining field membrane sheets overlap 5 1/2” to 6” at those locations where fasteners and plates are located.

Typically along the length of the membrane.

B.) The end roll sections are also mechanically fastened and overlapped 5 ½” to 6” to cover the fastener and plate and provide for an adequate hot air weld.

C.) The membrane is secured at the approved fastener density with the appropriate type of fastener and membrane plate approved for the deck and the wind uplift pressure resistance.

D.) Unroll and position the sheet.

E.) Install a fastener and plate in one end of the sheet on the appropriate fastener mark.

Go to the opposite end of the sheet and pull sheet into position along the lay line and install a fastener and plate at the appropriate mark. Place the remaining fasteners and plates.

F.) Hot air weld the seam and continue in sequence installing the remainder of the sheets across the roof area.

G.) Additional securement must be provided at the perimeter of each roof level, roof section, expansion joint or roof divider, all roof penetrations and curbs, adjacent walls and at any angle change where the slope exceeds 2:12.

H.) All seams must be completed by hot air welding the same day they are installed.

Thoroughly probe the seams with a seam probe and repair any voids or defects discovered.

3.0 Flashing

A.) General Flashing Conditions Flex Reinforced Flashing Membrane is to be installed for the flashing of parapet walls, roof equipment curbs, expansion joints and roof dividers, and for most other roof detail flashing areas. Flex non reinforced flashing membrane may be used for those details where the use of pre-formed accessories cannot be installed such as certain pipe penetrations, corners, and scuppers details.

1.) Re-roofing Flashing Conditions. Existing flashings must be removed prior to installing the new Flex Flashing Membrane.

2.) Termination Bar, surface mounted reglet or surface mounted counter flashings must be installed directly to the wall surface.

B.) Application Adhere the flashing membrane to walls, curbs and other vertical surfaces with Flex Flashing Adhesive. The Flashing Adhesive is applied to both the membrane and the surface to which it is bonded. The coverage rate is dependent on the type of substrate but should average approximately 60 square feet per gallon for both the membrane and the substrate. The flashing adhesive is allowed to dry until it is tacky and the flashing membrane is rolled into the adhesive.

1.) Complete all seams of the flashing membrane by the hot air welding method.

2.) Refer to the current Flex Membrane installation for applicable detail requirements.

4.0 Accessories

A.) Walkway Pads 1.) Install walkway pads in those locations as designated in the specifications.

2.) Thoroughly clean and prepare the area of the roof membrane that is to be hot air welded to the walkway pad.

3.) The Flex Walkway Pad is installed in maximum lengths of 10’.

4.) Position sections of the walkway pad to leave a space between adjacent sheets approximately 2” wide.

5.) Do not cover field seams with the Walkway Pad. Position the pads to leave minimum 4” wide area exposed at the field seams.

6.) Hot air weld all four sides of the walkway pad to the field membrane.

B.) Pavers

1.) Either a…

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