Sarnafil S327 Mechanically-Attached Engineered System Introduction



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WARRANTIES



[Note to Specifier: Select A, B, or C. D and E should always be specified.]


      1. Sarnafil Membrane Warranty

Upon successful completion of the work to Sarnafil's satisfaction and receipt of final payment, the Sarnafil Membrane Warranty shall be issued.




      1. Sarnafil Standard Warranty

Upon successful completion of the work to Sarnafil's satisfaction and receipt of final payment, the Sarnafil Standard Warranty shall be issued.




      1. Sarnafil System Warranty (only products purchased from Sarnafil are covered under System Warranty)

Upon successful completion of the work to Sarnafil's satisfaction and receipt of final payment, the Sarnafil System Warranty shall be issued.




      1. Applicator/Roofing Contractor Warranty

The Applicator shall supply the Owner with a separate workmanship warranty. In the event any work related to roofing, flashing, or metal is found to be within the Applicator warranty term, defective or otherwise not in accordance with the Contract Documents, the Applicator shall repair that defect at no cost to the Owner. The Applicator's warranty obligation shall run directly to the Owner, and a copy shall be sent to Sarnafil.




      1. Owner Responsibility

Owner shall notify both Sarnafil and the Applicator of any leaks as they occur during the time period when both warranties are in effect.



  1. PRODUCTS




          1. GENERAL




      1. The components of the Sarnafil Engineered mechanically-attached roof system are to be products of Sarnafil as indicated on the Detail Drawings and specified in the Contract Documents.




      1. Components to be used that are other than those supplied or manufactured by Sarnafil may be submitted for review and acceptance by Sarnafil. Sarnafil’s acceptance of any other product is only for a determination of compatibility with Sarnafil products and not for inclusion in the Sarnafil warranty. The specifications, installation instructions, limitations, and/or restrictions of the respective manufacturers must be reviewed by the Owner’s Representative for acceptability for the intended use with Sarnafil products.


MEMBRANE


      1. Sarnafil® S327 polyester reinforced membrane with a lacquer coating.




      1. Membrane shall conform to ASTM D4434-96 (or latest revision), “Standard for Polyvinyl Chloride Sheet Roofing,” Classification: Type III.


[Note to Specifier: Below you will find various Sarnafil S327 membranes. Generally physical properties such as puncture resistance increase as membrane thickness increases. Select appropriate product.]

        1. Sarnafil 5S327-12, 48 mil (1.2 mm), thermoplastic membrane with polyester reinforcement.

        2. Sarnafil 5S327-15, 60 mil (1.5 mm), thermoplastic membrane with polyester reinforcement.

        3. Sarnafil 5S327-18, 72 mil (1.8 mm), thermoplastic membrane with polyester reinforcement.

        4. Sarnafil 5S327-20, 80 mil (2.0 mm), thermoplastic membrane with polyester reinforcement.

        5. Sarnafil 6S327-12, 48 mil (1.2 mm), thermoplastic membrane with polyester reinforcement.

        6. Sarnafil 6S327-15, 60 mil (1.5 mm), thermoplastic membrane with polyester reinforcement.

        7. Sarnafil 6S327-18, 72 mil (1.8 mm), thermoplastic membrane with polyester reinforcement.

        8. Sarnafil 6S327-20, 80 mil (2.0 mm), thermoplastic membrane with polyester reinforcement.

        9. Sarnafil 6S327-24, 96 mil (2.4 mm), thermoplastic membrane with polyester reinforcement.

        10. Sarnafil 10S327-12, 48 mil (1.2 mm), thermoplastic membrane with polyester reinforcement.

        11. Sarnafil 10S327-15, 60 mil (1.5 mm), thermoplastic membrane with polyester reinforcement.

        12. Sarnafil 10S327-18, 72 mil (1.8 mm), thermoplastic membrane with polyester reinforcement.

        13. Sarnafil 10S327-20, 80 mil (2.0 mm), thermoplastic membrane with polyester reinforcement.



[Note to Specifier: If feltback membrane is to be specified add the following to the item selected in 2.02, B, 1-13: “With a factory applied 9 oz. geotextile felt backing.”]


      1. Certified Polymer Thickness


[Optional - Note to Specifier: If you want manufacturer to certify polymer thickness include 2.02, C, 1.]

        1. Membrane manufacturer is to certify that the polymer thickness is of the polymer thickness specified (see 2.02, B, 1-13). Certification is to be signed by the membrane manufacturer’s quality control manager. ASTM +/- tolerance for membrane thickness is not required.





      1. Color of Membrane


[Note to Specifier: Sarnafil’s EnergySmart Roof® membrane is an Energy Star® rated product. Specify EnergySmart Roof membrane unless a special color is required.]

        1. EnergySmart (white), initial reflectivity of 0.83, initial emissivity 0.90, solar reflective index (SRI) of >104.




        1. Other





      1. Typical Physical Properties


[Note to Specifier: List mil thickness of membrane desired – top item shown under physical properties.]


Parameters

ASTM

Test Method

Minimum ASTM

Requirement

Sarnafil Typical

Physical Properties




Reinforcing Material

-




Polyester

Overall Thickness, min., inches (mm)

D751

0.045 (1.14)

[0.0__inches]

Breaking Strength, min., lbf/in. (KN/m)

D751

200 (35.0)

230 (40.0)

Elongation at Break, min.

D751

15%

20%

Seam strength*, min. (% of breaking strength)

D751

75

85

Retention of Properties After Heat Aging

D3045

-

-

Breaking Strength, min., (% of original)

D751

90

95

Elongation, min., (% of original)

D751

90

90

Tearing Strength, min., lbf (N)

D1004

45.0 (200)

50 (220)

Low Temperature Bend, -40°F (-40°C)

D2136

Pass

Pass

Accelerated Weathering Test (Florescent Light, UV exposure)

G154

5,000 Hours

Pass

Cracking (7x magnification)

-

None

None

Discoloration (by observation)

-

Negligible

Negligible

Crazing (7 x magnification)

-

None

None

Linear Dimensional Change

D1204

0.5% max.

0.1%

Weight Change After Immersion in Water

D570

+ 3.0% max.

2.5%

Static Puncture Resistance, 33 lbf (15 kg)

D5602

Pass

Pass

Dynamic Puncture Resistance, 14.7 ft-lbf (20 J)

D5635

Pass

Pass




* Failure occurs through membrane rupture not seam failure. Physical Properties shown are prior to applying feltbacked, if specified.


FLASHING MATERIALS


      1. Wall/Curb Flashing



        1. Sarnafil G410 Membrane

A fiberglass reinforced membrane adhered to approved substrate using Sarnacol adhesive. Consult Product Data Sheets for adhesive options and additional information.



        1. Sarnafil G459 Membrane

An asphalt-resistant, fiberglass reinforced membrane adhered to approved substrate using Sarnacol adhesive. Consult Product Data Sheet for adhesive rates and additional information.



        1. Sarnafil S327 Membrane

A polyester reinforced membrane used for mechanically-attached flashings to approved substrate using Sarnadisc or Sarnabar. Consult Sarnafil Product Data Sheet for adhesive rates and additional information.



        1. Sarnaclad

A PVC-coated, heat-weldable sheet metal capable of being formed into a variety of shapes and profiles. Sarnaclad is a 25 gauge, G90 galvanized metal sheet with a 20 mil (1 mm) unsupported Sarnafil membrane laminated on one side. The dimensions of Sarnaclad are 4 ft x 8 ft (1.2 m x 2.4 m) or 4 ft x 10 ft (1.2 m x 3.0m). Consult Product Data Sheet for additional information.




      1. Perimeter Edge Flashing


[Note to Specifier: Select 1, 2, 3, or 4 and specify color.]

        1. Edge-Tite Flashing

A prefabricated perimeter edge attachment and fascia assembly provided by Sarnafil. Edge-Tite is made from three distinct parts. The (base) rail is made of formed 0.050 inch (1.3 mm) thick, 5052-H32 mill-finish alloy aluminum in 12 foot (3.6 m) lengths, provided with predrilled fastening holes. The spring clips are 6 inches (152 mm) wide and made from 0.020 inch (0.5 mm) stainless steel. The snap-on fascia is made from 24 gauge (0.6 mm) G90 steel or from 0.040 inch (1.0 mm) aluminum in 12 foot (3.6 m) lengths. Edge-Tite is available in a variety of fascia widths. Color and fascia metal shall be . Consult Product Data Sheet for additional information.



        1. Anchor-Tite® Flashing

A heavy-duty prefabricated perimeter edge attachment and fascia assembly provided by Sarnafil. Anchor-Tite is made of two distinct parts. The anchor bar is extruded 0.125 inch (3.0 m) thick from 6063-T6 alloy aluminum in 12 foot (3.5 mm) lengths, provided with predrilled fastening holes. Snap-on fascia covers are formed from either 24 gauge galvanized steel with Kynar® or 0.40 inch (10 mm) aluminum with Kynar®, anodized or mill finish. Anchor-Tite is available in a variety of fascia widths. Color and fascia metal type shall be .



        1. Sarnaclad

A PVC-coated, heat-weldable sheet metal capable of being formed into a variety of shapes and profiles. Sarnaclad is a 25 gauge, G90 galvanized metal sheet with a 20 mil (1 mm) unsupported Sarnafil membrane laminated on one side. The dimensions of Sarnaclad are 4 ft x 8 ft (1.2 m x 2.4 m) or 4 ft x 10 ft (1.2 m x 3.0m). Consult Product Data Sheet for additional information.



        1. Non-Typical Edge

Project-specific perimeter edge detail reviewed and accepted for one-time use by Sarnafil's Technical Department. Consult Regional Technical Manager prior to job start for review and consideration for acceptance.




      1. Miscellaneous Flashing



        1. Sarnaflash

A prefabricated expansion joint cover made from Sarnafil membrane. Sarnaflash is designed for securement to wall or horizontal surfaces to span and accommodate the movement of new and existing expansion gaps from 1 inch to 4½ inches (25 mm to 114 mm) across. Available in 40 foot (12 m) rolls. Consult Product Data Sheet for additional information.



        1. Sarnareglet

A heavy-duty, extruded aluminum flashing termination reglet used at walls and large curbs. Sarnareglet is produced from 6063-T5, 0.10 inch - 0.12 inch (2.5 mm - 3.0 mm) thick extruded aluminum. Sarnareglet has a 2¼ inch (57 mm) deep profile, and is provided in 10 foot (3 m) lengths. Use prefabricated Sarnareglet mitered inside and outside corners where walls intersect. Consult Product Data Sheet for additional information.



        1. Sarnastack

A prefabricated vent pipe flashing made from 0.048 inch (48 mil/1.2 mm) thick Sarnafil G410 membrane. Available in five different sizes. Consult Product Data Sheet for sizes and additional information.



        1. Sarnadrain-RAC

PVC-coated, heavy-duty aluminum roof drain insert that mechanically seals to the drainpipe interior. Sarnadrain-RAC is made of 0.080 inch (2 mm) thick 6063 aluminum with a urethane seal installed at the end of the drainpipe. The large 14 inch x 14 inch (0.36 m x 0.36 m) drain strainer is also made of 0.080 inch (2 mm) thick aluminum stock. The flange dimensions of Sarnadrain-RAC are 18 inches x 18 inches (0.46 m x 0.46 m). Consult Product Data Sheet for sizes and additional information.



        1. Sarnacircle-"S"

Circular 0.048 inch (48 mil/1.2 mm) thick S327 membrane patch welded over T-joints formed by overlapping thick membranes.



        1. Sarnafiller

A urethane sealant used for pitch pocket topping. Sarnafiller is a two component sealant. Sarnafiller cures with excellent elasticity and adhesion to various surfaces. Consult Product Data Sheet for additional information.



        1. Sarnacorner

Prefabricated outside and inside flashing corners made of 0.060 inch (60 mil/1.5 mm) thick membrane that are heat-welded to membrane or Sarnaclad base flashings. Sarnacorner is available in 2 outside sizes (5 inch and 8½ inch diameter/127 mm and 215 mm) and 1 inside size. Consult Product Data Sheet for additional information.



        1. Multi-Purpose Sealant

A proprietary sealant used at flashing terminations. Consult Product Data Sheet for additional information.



        1. Sarnacol 2170 Adhesive

A solvent-based reactivating-type adhesive used to attach membrane to flashing substrate. Consult Product Data Sheets for additional information.



        1. Sarnafelt

A non-woven polyester or polypropylene mat cushion layer that is necessary behind G410 or G459 Flashing Membrane when the flashing substrates are rough-surfaced or incompatible with the flashing membrane. Consult Product Data Sheets for additional information.



        1. S327 Coverstrip

9 inch (0.23 m) wide precut flashing made from Sarnafil S327 polyester reinforced membrane. Used to coverstrip Sarnabar and Sarnadisc.


INSULATION/OVERLAYMENT/RECOVER BOARD


      1. Sarnatherm

Rigid isocyanurate foam insulations with black mat, treated glass, or foil facers. Sarnatherm is available in 4 ft x 4 ft (1.2 m x 1.2 m) or 4 ft x 8 ft (1.2 m x 2.4 m) sizes and various thickness. Consult Product Data Sheets for additional information.




      1. Sarnatherm EPS

Expanded polystyrene closed-cell foam insulations. Sarnatherm EPS is available in 4 ft x 4 ft (1.2 m x 1.2 m) or 4 ft x 8 ft (1.2 m x 2.4 m) sizes and various thicknesses. Sarnatherm EPS requires a separation layer between it and the membrane. Consult Product Data Sheets for additional information.




      1. Sarnatherm EXPS

Extruded polystyrene closed-cell foam insulations. Sarnatherm EXPS is available in 4 ft x 4 ft (1.2 m x 1.2 m) or 4 ft x 8 ft (1.2 m x 2.4 m) sizes and various thicknesses. Sarnatherm EXPS requires a separation layer between it and the membrane. Consult Product Data Sheets for additional information.


[Instruction to specifiers: Select only one type of insulation to specify.]


      1. Dens-Deck®

A siliconized gypsum, fire-tested hardboard with glass-mat facers. Dens-Deck is provided in a 4 ft x 8 ft (1.2 m x 2.4 m) board size and in thicknesses of 1/2 inch and 5/8 inch (13 mm and 16 mm). Consult Product Data Sheet for size, thickness and additional information.




      1. Dens- Deck® Prime

A fire-tested, gypsum hardboard with glass-mat facers and a pre-primed surface on one side. Dens-Deck Prime is provided in a 4 x 8 ft (1.2 x 2.4 m) board size and in thicknesses of 1/4, 1/2 and 5/8 inch (6, 13 and 16 mm). Consult Product Data Sheet for size, thickness and additional information.




      1. Dens-Deck® DuraGuard

A fire-tested, gypsum hardboard with a durable glass-mat facer coating. DuraGuard is provided in a 4 x 8 ft (1.2 x 2.4 m) board size and in thicknesses of 1/4, 1/2 and 5/8 inch (6, 13 and 16 mm). Consult Product Data Sheet for size, thickness and additional information.


ATTACHMENT COMPONENTS


      1. Sarnaplate

Used with various Sarnafasteners to attach insulation boards to roof deck. Sarnaplate is a 3 inch (75 mm) square or round, 26 gauge stamping of SAE 1010 steel with an AZ 55 Galvalume coating. Consult Sarnafil Product Data Sheet for additional information.




      1. Sarnaplate-HD/CD

Used with Sarnafastener-HD or Sarnafastener-CD10 to attach insulation boards to wood or concrete roof decks. Sarnaplate-HD/CD is a 3 inch (75 mm) round stamping of SAE 1010 steel with an AZ 55 Galvalume coating. Consult Sarnafil Product Data Sheet for additional information.




      1. Sarnaplate-Preassembled

Combination of a 3 inch round plate and a #12 fastener used to attach insulation boards to steel or wood roof decks. Sarnaplate-Preassembled consists of a 3 inch (75 mm) round, 26 gauge stamping of SAE 1010 steel with an AZ 55 Galvalume coating and Sarnafastener #12 with modified buttress thread. The fastener shank diameter is approximately 0.168 inch (4 mm) and the thread diameter is approximately 0.214 inch (5 mm). Consult Sarnafil Product Data Sheet for additional information.




      1. Sarnafastener #12

A #12 corrosion-resistant fastener used with Sarnaplates to attach insulation boards to steel or wood roof decks. Sarnafastener #12 has a modified buttress thread, a shank diameter of approximately 0.168 inch (4 mm) and a thread diameter of approximately 0.214 inch (5 mm). The driving head has a diameter of approximately 0.435 inch (11 mm) with a #3 Phillips recess for positive engagement. Consult Sarnafil Product Data Sheet for additional information.




      1. Sarnafastener-HD

A #14 corrosion-resistant fastener used with Sarnaplate-HD/CD to attach insulation boards or with Sarnadisc and Sarnabar to attach membrane to structural concrete or wood roof decks. Sarnafastener-HD has a shank diameter of 0.190 inch (4.8 mm), a thread diameter of 0.245 inch (6.2 mm) and a #3 Phillips drive head with a diameter of 0.435 inch (11 mm). Consult Sarnafil Product Data Sheet for additional information.




      1. Sarnafastener-XP

A #15, heavy-duty, corrosion-resistant fastener used with Sarnaplate to attach insulation or Sarnadisc, Sarnadisc-XPN and Sarnabar to attach Sarnafil S327 roof membrane to steel or wood roof decks. Sarnafastener-XP has a shank diameter of approximately 0.21 inch (5.3 mm) and the thread diameter is approximately 0.26 inch (6.6 mm). The driving head has a diameter of approximately 0.435 inch (11 mm) with a #3 Phillips recess for positive engagement. Consult Sarnafil Product Data Sheet for additional information.




      1. Sarnafastener-XPS

A specially designed, heavy-duty, corrosion-resistant fastener used with Sarnadisc, Sarnadisc-XPS or Sarnabar to attach Sarnafil S327 roof membrane to steel roof decks. Sarnafastener-XPS has a shank diameter of approximately 0.21 inch (5.3mm) and a thread diameter of approximately 0.26 inch (6.6). The driving head has a diameter of approximately 0.435 inch (11 mm) with a #3 Phillips recess for positive engagement and simplicity of application. Consult Sarnafil Product Data Sheet for additional information.




      1. Sarnafastener-CD10

A nail-in, corrosion-resistant fastener used with Sarnaplate-HD/CD, Sarnastop or Sarnabar to attach insulation or membrane to normal weight concrete roof deck. Sarnafastener-CD10 has a shank diameter of 0.215 inch (5.5 mm), a split diameter of 0.265/0.275 inch (6.7/7.0 mm) and a flat head with a 0.435 inch (11 mm) diameter. Consult Product Data Sheet for additional information.




      1. Sarnafastener-King Con

A nail-in, corrosion-resistant fastener used with Sarnaplate to attach insulation or Sarnadisc, Sarnadisc-XPN and Sarnabar to attach Sarnafil S327 membrane to poured structural concrete roof decks. Consult Sarnafil Product Data Sheet for additional information.




      1. Sarnabar

An FM-approved, heavy-duty, 14 gauge, galvanized or stainless, roll-formed steel bar used to attach membrane to the roof deck. The formed steel is pre-punched with holes every 1 inch (25 mm) on center to allow various Sarnafastener spacing options. Consult Sarnafil Product Data Sheet for additional information.




      1. Sarnacord

A 5/32 inch (4 mm) diameter, red-colored, flexible thermoplastic extrusion that is welded to the top surface of the Sarnafil membrane and against the side of the Sarnabar, used to hold the membrane in position. Consult Sarnafil Product Data Sheet for additional information.


WALKWAY PROTECTION
[Note to Specifier: Select one type of walkway.]


      1. Sarnatred

A polyester reinforced, 0.096 inch (96 mil/2.4 mm), weldable membrane with surface embossment. Used as a protection layer from rooftop traffic. Sarnatred is supplied in rolls of 39.3 inches (1.0 m) wide and 32.8 feet (10 m) long. Consult Product Data Sheet for additional information.




      1. Sand-Coated Walkway

A fiberglass reinforced, 60 mil, weldable membrane with a thick sand-based coating on top. Net dimensions are approximately 150 mil (4 mm) thick by 26 inches (0.6 m), 39 inches (1.0 m), 78 inches (2.0 m) wide with varying lengths. The standard length is 32 feet (10 m). Consult Product Data Sheet for additional information.




      1. Concrete Pavers

Normal weight concrete pavers specifically designed and produced for rooftop application. For large areas the use of paver pedestals or a drainage panel protection layer between the Sarnafil roof membrane and the pavers is required. For narrow walkways, a welded-in-place protection layer of Sarnafil membrane is required under the concrete pavers.


VAPOR RETARDER


      1. Sarnavap-10

A 10 mil (0.25 mm) thick polyethylene vapor retarder/air retarder. Sarnavap-10 is supplied in a folded panel that is rolled onto a core. The core width is 5 feet (1.5 m). When unrolled off the core and unfolded, the sheet dimensions are 20 feet (6.9 m) wide by 100 feet (33 m) long. Consult Product Data Sheet for additional information.




      1. Bituminous

A bituminous vapor retarder may be used beneath the insulation, especially if the insulation is to be mopped-in with hot asphalt or set-in with a Sarnafil-accepted urethane-based adhesive.


MISCELLANEOUS ACCESSORIES


      1. Aluminum Tape

A 2 inch (50 mm) wide pressure-sensitive aluminum tape used as a separation layer between small areas of asphalt contamination and the membrane and as a bond-breaker under the coverstrip at Sarnaclad joints.




      1. Sealing Tape Strip

Compressible foam with pressure-sensitive adhesive on one side. Used with metal flashings as a preventive measure against air and wind blown moisture entry.




      1. Multi-Purpose Tape

A high performance sealant tape with used with metal flashings as a preventive measure against air and wind blown moisture entry.




      1. Sarnamatic 641mc or 661

220 volt, self-propelled, hot-air welding machine used to seal long lengths of Sarnafil membrane seams.




      1. Sarnasolv

A high quality solvent cleaner used for the general cleaning of residual asphalt, scuff marks, etc., from the membrane surface. Sarnasolv is also used daily to clean seam areas prior to hot-air welding in tear off or dirty conditions or if the membrane is not welded the same day it is unrolled. Consult Product Data Sheet for additional information.


SEALANTS AND PITCH POCKET FILLERS


      1. Sarnafil Multi-Purpose Sealant (for termination details).




      1. Sarnafiller (two-part urethane filler for pitch pocket toppings).




      1. Depending on substrates, the following sealants are options for temporary overnight tie-ins:



        1. Type III hot asphalt conforming to ASTM D312 (latest revision).

        2. Sarnafiller.

        3. Multiple layers of roofing cement and felt.

        4. Spray-applied, water-resistant urethane foam.

        5. Mechanical attachment with rigid bars and compressed sealant.



MISCELLANEOUS FASTENERS AND ANCHORS


      1. All fasteners, anchors, nails, straps, bars, etc. shall be post-galvanized steel, aluminum or stainless steel. Mixing metal types and methods of contact shall be assembled in such a manner as to avoid galvanic corrosion. Fasteners for attachment of metal to masonry shall be expansion type fasteners with stainless steel pins. All concrete fasteners and anchors shall have a minimum embedment of 1¼ inch (32 mm) and shall be approved for such use by the fastener manufacturer. All miscellaneous wood fasteners and anchors used for flashings shall have a minimum embedment of 1 inch (25 mm) and shall be approved for such use by the fastener manufacturer.



          1. RELATED MATERIALS




      1. Wood Nailer

Treated wood nailers shall be installed at the perimeter of the entire roof and around such other roof projections and penetrations as specified on Project Drawings. Thickness of nailers must match the insulation thickness to achieve a smooth transition. Wood nailers shall be treated for fire and rot resistance (wolmanized or osmose treated) and be #2 quality or better lumber. Creosote or asphalt-treated wood is not acceptable. Wood nailers shall conform to Factory Mutual Loss Prevention Data Sheet 1-49. All wood shall have a maximum moisture content of 19% by weight on a dry-weight basis.




      1. Plywood

When bonding directly to plywood, a minimum 1/2 inch (12 mm) CDX (C side out), smooth-surfaced exterior grade plywood with exterior grade glue shall be used. Rough-surfaced plywood or high fastener heads will require the use of Sarnafelt behind the flashing membrane. Plywood shall have a maximum moisture content of 19% by weight on a dry weight basis.



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