Premium_III.pdf

A Quality Controlled Hot-Melt Asphalt Adhesive

Premium III™ is a high quality steep asphalt processed from closely monitored asphalt flux. Premium III meets tightly controlled performance characteristics and exceeds ASTM D312 standards.

Premium III is designed for application as a thermoplastic hot-melt adhesive in a variety of built-up roof configurations. Premium III can be used as an interply or flood coat adhesive for BUR and MB roof systems.

It can also be used to adhere Tremco approved insulations to acceptable substrates.

Refer to UL Roofing Materials and Systems Directory and/or FM Approvals RoofNav for applicable system configurations.

Available in 100 lb. (45kg) cartons. Sold by pallet only.

General Application Data: Roof replacement usually involves more complexities than new construction roofing. Often encountered are situations such as rusted/deteriorated decks, rotted wood components, and rooftop equipment which cannot be moved or shut down, and numerous other conditions.

The following application information is designed to serve as a general guide. Your local Tremco Representative will prepare detailed specifications based upon your roof’s conditions.

Structural Deck: Must be properly designed and structurally sound.

Drainage: Ponding conditions are unacceptable and will adversely affect performance of any roofing system. If positive drainage does not exist, water removal must be facilitated by lowering drains, and/ or installing additional drains, tapered insulation, or an approved cellular concrete slope system.

Insulation: Insulation must be dry and kept dry. No more insulation shall be installed than can be covered that day.

Acceptable Insulations:

TYPE MINIMUM THICKNESS* FACER

Fiberboard 1/2” (13 mm) Coated Gypsum/Gypsum Fiber 1/4” (6 mm) Factory Primed/Unfaced Perlite 1” (25 mm) None

SUBLAYER

Fiberboard 1/2” (13 mm) None Gypsum/Gypsum Fiber 1/4” (6 mm) Factory Primed/Unfaced Perlite 1” (25 mm) None Polyisocyanurate 1” (25 mm) Black/White

*Minimum thickness for application in Premium III. Follow insulation manufacturer’s instructions to obtain minimum thickness for spanning metal deck ribs.

DESCRIPTION

BASIC USES

PACKAGING

APPLICATION

Premium III™

FEATURES

Quality Control

High Quality Asphalt

Consistent EVT

BENEFITS

• Longer roof life

• Uniform installation characteristics

• Reduced application error

Premium III™

APPLICATION

CONTINUED

APPLICATION RATES

LIMITATIONS

Installation Procedures: According to particular job specifications, prepare surface to be covered:

• Replace areas of wet insulation, deteriorated deck, and wood components.

• Install roof insulation or base sheet by mechanical attachment or in a uniform and continuous mopping of Premium III applied at 25-30lb/100 ft2 (1.2 -1.4 kg/m2).

Application: Plan placement of roofing ply sheets to ensure that water will flow over or along, but not against exposed edges. Use standard kettle equipped with circulating pump.

Do not heat Premium III above its flash point.

Starting at low point of roof, apply a uniform continuous mopping of Premium III using standard roofing mop or Tremco approved felt layer. Use ply sheets to start and finish roof membrane along edges, terminations and projections as specified. Install ply sheets, overlapping each previous ply the specified width. Embed each ply in uniform and continuous mopping of Premium III asphalt, applied within its Equiviscous Temperature (EVT) range.

Interply Application Rate:

Felt lb/100 ft2 * BURmastic Glass Ply 25 (1.2 kg/m2) BURmastic Composite Ply HT 25 (1.2 kg/m2) PolyTHERM 25 (1.2 kg/m2) THERMglass 25 (1.2 kg/m2) POWERply systems (all plies) 25 (1.2 kg/m2) *Application Tolerance: ±20%

Ply shall never touch ply. Apply Premium III no more than ten feet ahead of each roll. Lightly broom plies from unmopped side to assure complete adhesion. Tie in previous work 24” (600mm). Lap ply sheet ends 6” (150mm). Stagger end laps. Avoid walking on plies until Premium III has cooled. Install flashings as specified

Surfacing Options:

Gravel: Apply Premium III over roof surface at 60 Ib/100 ft2 (2.9 kg/m2) + 20%. Immediately broadcast 400 lb/100 ft2 (19.5 kg/m2) of new, clean gravel into adhesive. Aggregate shall conform to ASTM D 1863.

Smooth Surface: Consult your local Tremco Representative for specific applications suitable for your geographic area.

Premium III quantities for water-stop/tieoffs, flashings, miscellaneous detail applications and minimum kettle capacity are not included in interply and flood coat application rates.

• Not intended to perform under ponding conditions. Positive drainage required.

• Not to be exposed to solvents, oils, or other contaminants harmful to asphaltic materials.

• Not for use over expanded polystyrene (EPS) or EPS composite insulations installed in any configuration unless EPS is encapsulated within lightweight insulating cellular concrete.

• Not for use to adhere membranes or plies directly over isocyanurate insulation.

Isocyanurate insulations must be overlayed with an approved coverboard.

• Not for use over phenolic insulations installed in any configuration.

• Backnail felts on roofs with slopes 2:12 (2” per foot) or greater. Do not install on roofs with slopes greater than 3:12 (3” per foot).

• Do not install when ambient temperatures are below 50°F (10°C) unless special cold weather application procedures are followed. Consult your local Tremco Representative for details.

Tremco is a US Registered trademark of Tremco CPG Inc.

The information provided on this data page supersedes all previous data concerning this product and its application.

The Statements provided concerning the materials shown are intended solely as a general guide for material usage and are believed to be true and accurate. Since the manner of use is beyond our control, Tremco DOES NOT MAKE NOR DOES IT AUTHORIZE ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PURPOSE, OR ANY OTHER WARRANTY, GUARANTEE OR REPRESENTATION, EXPRESSED OR IMPLIED, CONCERNING THIS MATERIAL EXCEPT THAT IT CONFORMS TO TREMCO’S PRODUCT SAMPLE. Buyer and user accept the product under those conditions and assume the risk of any failure, injury of person or property and loss or liability resulting from the handling, storage or use of the product, whether or not it is handled, stored, used in accordance with directions or specifications. UNDER NO CIRCUMSTANCE SHALL TREMCO BE LIABLE FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES ARISING FROM ANY BREACH OF WARRANTY. IN ALL CASES, TREMCO’S LIABILITY IS LIMITED, AT TREMCO’S OPTION, TO THE REPLACEMENT OF GOODS, OR THEIR VALUE, PROVEN TO BE DEFECTIVE IN MANUFACTURING.

www.tremcoroofing.com 3735 Green Road Beachwood, Ohio 44122 1.800.852.6013

220 Wicksteed Avenue Toronto, Ontario, M4H 1G7 1.800.668.9879 Tremco Roofing and Building Maintenance is part of Tremco Construction Products Group.

Premium III™

PHYSICAL PROPERTY

MAINTENANCE

PRECAUTIONS

TECHNICAL SUPPORT

PROPERTY TYPICAL VALUE TEST METHOD

Softening Point 195-205° F (90.5-96° C) ASTM-D 36

Penetration @ 77° F (25° C) 15-30 dmm ASTM-D 5

Flash Point, min 525° F (274° C) ASTM D 92

Ductility @ 77° F (25° C), min 2.5 cm ASTM D 113

Equiviscous temperature (125cP) 400-450° F (204-221° C) ASTM 4402

Your local Tremco Roofing sales representative can provide you with effective maintenance procedures which may vary, depending upon specific conditions. Periodic inspections, early repairs and preventative maintenance are all part of a sound roof program.

Users must read container labels and Safety Data Sheets for health and safety precautions prior to use.

Your local Tremco Roofing sales representative, working with the Technical Service Staff, can help analyze conditions and needs to develop recommendations for special applications.