RoofMate HT - Best Materials

Distributed by: BEST MATERIALS LLCPh: 1-800-474-7570, 1-602-272-8128 Fax: 1-602-272-8014Email: sales@bestmaterials.com www.bestmaterials.comRoof CoatingsDivisionROOF MATE HTHIGH TENSILE/ELONGATION ACRYLIC ELASTOMERExceeds ASTM D6083 StandardsTechnical Data & Application InstructionsPRODUCT DESCRIPTIONROOF MATE HT is a unique water-based elastomercoating utilizing the latest advances in acrylictechnology for roof areas subject to heavy maintenancetraffic, severe weather conditions, chemical fallout,etc. High tensile emulsion polymers are combinedwith reinforcing laminar pigments and non-migratingfire retardants for superior physical properties,durability, weatherproofing, dirt and mildew resistance,ultraviolet resistance and fire retardancy. Thefire retardant chemicals are permanently locked intothe cured coating and will not leach out uponextended weathering. ROOF MATE HT is a“breathing” coating, allowing moisture vapor to passthrough the film while remaining impervious tomass water penetration.BASIC USESROOF MATE HT was especially developed as asuperior coating for extending the life of metal, conventionalbuilt-up, modified bitumen, single- ply,concrete, board-stock and sprayed-in-placepolyurethane foam, and composite shingle roofs.Once applied, the substrate is protected from furtherdegradation caused by normal weathering, aging andultraviolet exposure. ROOF MATE HT forms awaterproof elastomeric seal, uniformly covering thetextured profile of various substrates. Its dense, tightfinish repels dirt and pollutants while the elastomericmembrane remains permanently flexible. ROOFMATE HT also withstands normal ponding waterconditions and performs equally well over flat orsloped roofs.COLORSROOF MATE HT is available in standard White,Tan, Light Tan and Solar Gray colors, which arecertified to meet ENERGY STAR ® , Cool RoofRating Council (CRRC) and LEED reflectance andemissivity criteria. White and Light Tan also meetCalifornia Title 24 requirements. All other colors arecustom matched by UNITED for the specific application.Color chips or samples must be furnished toUNITED for all custom colors. It is recommendedthat dark colors be tinted in KYMAX topcoat only.TYPICAL PROPERTIES1. Solids By Weight:62% (± 2) [ASTM D1644]2. Solids By Volume:52% (± 2) [ASTM D2697]3. Dry Time For Foot Traffic Resistance:*3 hours – Light Gray @ 16 wet mils (406microns)5 hours – White @ 16 wet mils (406 microns)@ 75°F (24 C), 50% R.H. [ASTM D1640]*Dry times will increase with higher humidity &/orlower temperature4. Ultimate Tensile Strength:550 psi (± 50) (4.0 MPa) @ 70°F (21°C)[ASTM D412]5. Elongation at Break:500% (± 50) @ 70°F (21°C) [ASTM D412]6. Hardness:75 to 80 Shore A [ASTM D626]7. Permeance:2.5 U.S. Perms @ 20 mils [ASTM D1653]8. High Temperature Stability:No age hardening or slump up to250°F (121°C)9. Temperature Limits ForNormal Service Conditions:-30°F to 200°F (-35°C to 93°C)10. Bond Strength:Exceeds cohesive strength of coating[ASTM C794]11. Code Approvals:Factory Mutual Class I SystemUL 790 Class A classifiedWARRANTYUNITED’S Standard Warranty, issued to theBuilding Owner, is available for 5-year, 10-yearand 15-year periods at no cost. ROOF MATEHT also qualifies for UNITED’S SystemWarranties, available for 5-year, 10-year and 15-year periods. The System Warranties require additionalfees as well as a final inspection. Refer tosection entitled Application Instructions as well asindividual Warranty Explanation Forms for additionaldetails.UNITED COATINGS 7 HIGH TENSILE/ELONGATION ADVANCED ACRYLIC ELASTOMERJune 2009 Technical Data & Application Instructions(Supercedes April 2008)TD-UC-RMHT

THIRD PARTY APPROVALS & ADVANTAGESFire Testing: ROOF MATE HT is a UL 790Class “A” classified coating over various non-combustiblesubstrates. It also achieved a Class I ratingin the FMRC fire test for Insulated Steel DeckConstruction. Ratings are subject to the conditionsof approval as described in the Factory MutualApproval Guide or Job Identification#J.I.0Z3Q4.AM, and UL Building MaterialsDirectory, which describes requirements of ratedroof systems.Spread Of Flame Fire Test: Tests were conductedin accordance with ASTM E 108 Fire Tests of RoofCoverings for Class A non-combustible deck testprocedures. ROOF MATE HT achieved a Class Arating over a variety of polyurethane foams. At notime during the Spread of Flame Tests were flyingbrands developed or excessive lateral flame spreadsobserved. Refer to Factory Mutual Approval Guidefor listing details.Simulated Windstorm Classification Pull Tests:Wind uplift tests were conducted to evaluate theability of the deck components to resist a simulatedwind uplift force without failure of the assembly.ROOF MATE HT passed the Class 1-180 winduplift requirements over a variety of polyurethanefoams. Refer to Factory Mutual Approval Guide orJob Identification #J.I.0Z3Q4.AM.Simulated Hail Damage Tests: Simulated haildamage tests were conducted to evaluate the abilityof the roof cover/insulation combinations to withstanda hailstorm without damage to the covering.After 10 drops of the impactor apparatus, theROOF MATE HT showed no sign of cracking,splitting, internal separation, delamination or rupture.Refer to Factory Mutual Approval Guide orJob Identification # J.I.0B9A2.AM.High Tensile Strength & Elongation Properties:ROOF MATE HT achieves outstanding elongation,tensile strength and tear resistance properties, whichare carefully balanced to provide optimum longtermperformance. The cured film provides excellentabrasion and impact resistance to withstandextreme weather conditions and maintenance traffic.Its tight finish also exhibits excellent chemical, dirtpickup and mildew resistance.Bond Strength: ROOF MATE HT achieved a 50to 60 lb./sq. inch (.34 to .41 MPa) breaking strengthwhen tested in the Instron Universal TestingInstrument. ASTM C297High Acrylic Resin Content: Solids by volumepercentage is only one measure of a coating’s quality.Another basis for determining longevity of a coatingis the ratio of filler pigment to polymer content.ROOF MATE HT contains lower filler pigmentload and higher levels of acrylic polymer than mostcoatings. This high ratio of pure acrylic polymerprovides long-term weather resistance. ROOFMATE HT’S overall high performance is achievedthrough the use of elastomer acrylic polymers.Reduced Energy Cost: ROOF MATE HT Whitestays clean to reflect the sun’s heat, unlike dark coloredroof substrates that retain heat and are subjectto UV degradation. Roof temperatures can bereduced in excess of 50°F (28°C). ROOF MATEHT is certified to exceed Energy Star® and CRRCrequirements.Resistance To Foot Traffic: Tests were conductedto determine the ability of the roof cover/insulationcombination to resist foot traffic. After completionof the testing, the samples showed no sign of tearingor cracking. Refer to Factory Mutual ApprovalGuide or Job Identification #J.I.0B9A2.AM.Susceptibility To Leakage Test: Tests were conductedto determine the resistance of the roofcover/insulation assembly to water intrusion whensubjected to a 6" (15 cm) head of water above thesample as well as air pressure below the sample. After7 days exposure, the ROOF MATE HT showed nosigns of water leakage. Refer to Factory MutualApproval Guide or Job Identification #J.I.0B9A2.AM.Low Temperature Flexibility: ROOF MATE HTis capable of withstanding 180° mandrel bends overa 3/16" (5 mm) mandrel @ -25°F (-30°C). FederalTest Method No. 141a-6221/ASTM D522Resists Abusive Weather: ROOF MATE HT willtake abusive weather conditions of all types. Ice,snow, wind driven rain and sand do not penetrate itstough, dense surface under normal conditions.Easy Application and Repair: A smaller crew cando the work that used to require many, at a fractionof the cost of other roofing systems. With a ROOFMATE HT roof there is no asphalt to degrade,metal to corrode or seams to come apart and leak. Itis formulated to remain flexible to –30°F (-35°C)without cracking, and is impervious to the minorponding water associated with most roofs. Whenmaintenance is required, the repair is easily accomplishedwith the use of an acrylic caulk or touch-upwith additional ROOF MATE HT.Colorfast: The acrylic resins utilized in ROOFMATE HT cross-link under exterior exposure tolock in color and lock out dirt. The topcoat colorremains true through years of weathering, while thetight, cross-linked surface repels dirt to remain cleanand highly reflective.

PACKAGING & MIXINGROOF MATE HT is a single-component, ready-tousematerial available in 5-gallon (19 liter) pails and55-gallon (208 liter) drums. ROOF MATE HT mayappear well mixed, but upon extended standing willsettle into a two-stage suspension. Use a ¾ horsepoweror larger mixer with a blade capable of uniformlymixing the entire container. For 5-gallon (19liter) pails, use 3" (7.5 cm) minimum diameter mixingblades. For 55-gallon (208 liter) drums, use 6"(15 cm) minimum diameter mixing blades.ROOF MATE HT, properly mixed, is easilypumped and sprayed at material temperatures of60°F (16°C) or greater. Thinning or reducing themixture is not recommended. Addition of waterreduces the rich thixotropic nature of ROOF MATEHT and decreases its ability to achieve a heavy filmbuild with excellent vertical hold and hide.SURFACE PREPARATIONAll surfaces must be clean and dry, and free of anydirt, dust, oil, surface chemicals, or other contaminantsthat may interfere with optimum adhesion. Allloose gravel, if present, shall be removed by powersweeping and/or vacuuming. Remaining gravel shallbe power spud to achieve the smoothest surface possible.Any unsound areas in the roof, i.e. blisters,delamination, deterioration, moisture saturation,severe corrosion, sharp projections, ridges, etc. shallbe repaired or replaced. New asphalt shall beexposed to ambient conditions for 45 to 60 daysbefore coating.Deteriorated or badly corroded metal shall bereplaced. Rusted areas shall be mechanically abradedto remove all loose rust and then primed with UNIT-ED’S Acrylex 400 rust-inhibitive metal primer forlight to medium rust, or Primer 302 LV for heavyrust. New metal roofs exhibiting any type of surfacefilm shall be washed with a vinegar or muriatic acidsolution, or equivalent, to totally remove this film.Low areas that hold excessive ponding water mustbe brought into conformance by installing additionaldrains or adding additional slope to existing drains.Excessive ponding is any area that holds in excessof ½" (5 cm) of water as measured 24 hours after arainfall.Surfaces that are contaminated with oil, grease,embedded dirt, loose paint or coating, etc. shall becleaned using United Cleaning Concentrate(UCC), a biodegradable chemical cleaner, andwater. High-pressure power washing and/ormechanical scrubbers may be necessary to removetightly adhering contaminants. Rinse thoroughlywith clean water to remove all traces of the UCCcleaner. If roof does not require chemical cleaning,thoroughly sweep, vacuum, or blow down roof toremove any dirt, dust or other loose contaminants.Refer to separate Roof Mate Master GuideSpecifications for the specific substrate being coatedfor complete surface preparation procedures.COATING APPLICATIONPrior to applying ROOF MATE HT to the roof surface,all detail work on seams, splits, protrusions,drains, flashings, fasteners, etc. utilizing Roof MateButter Grade, Uni-Tape, Roof Mate Fabricand/or Mesh, and Uni-Caps shall have been completed.Any primers, if necessary, shall also havebeen applied and allowed to dry.ROOF MATE HT may be applied by conventionalor airless spray equipment. Brush or roller may beused for touch-up and edging work, or for smallareas that are not practical for spray application.Airless spray is best suited for field application. Usea pump with a minimum 1-gallon per minute (3.8l/minute) output and 2,000 psi (13,790 kPa) pressurecapability. Use a reversible, self-cleaning tip with anorifice size of .027" to .039" (.69 to .99 mm).ROOF MATE HT must be applied in two or moreseparate coats to ensure proper coverage and curerate, and to achieve a pinhole-free continuous film.It is recommended that Gray be used for the firstcoat(s), thus making it easier to visually control theapplication of the final coat in White or specifiedcustom color. ROOF MATE HT applied at the rateof one gallon per 100 sq. ft. (.4 l/m²) will theoreticallyyield 8.3 dry mils (211 microns).Each coat of ROOF MATE HT shall be applied ina direction perpendicular to the previous coat exceptwhen coating metal roof panels. On metal roofs,each coat of ROOF MATE HT shall be appliedparallel to the vertical ribs, taking care to coat bothsides of each rib. Edges of flat roof areas shall bepre-coated in a “picture frame” configuration.ROOF MATE HT shall extend up and over all roofsubstrates on vent pipes, walls, parapets and otherprotrusions to terminate a minimum of 3" (7.5 cm)above the substrate, creating a self-terminatingflashing. Extend coating up and under all counterflashingswhere utilized.All surfaces must be uniformly coated and freefrom voids, pinholes or blisters. Adequate curingof detail work must take place prior to applyingROOF MATE HT base coat. Subsequent coats ofROOF MATE HT shall be applied only afterallowing adequate cure time for the precedingcoat(s). Initial cure or dry time to achieve resistanceto rain or overnight dew will normally require severalhours. Total cure to achieve long term resistanceto ponded water will usually take 24 to 72hours depending on ambient conditions.Consult separate ROOF MATE Master GuideSpecifications for Board-Stock Insulation, Built-Up, Modified Bitumen, EPDM, Hypalon, Metal andConcrete roof substrates for specific film thicknessrequirements to qualify for UNITED’S 5, 10 and15-Year Standard and System Warranties.

COATING APPLICATION (Cont.)If any form of dirt, sand, pollution fallout, etc. isdetected on the surface of ROOF MATE HT it isnecessary to remove this material before applyingan additional coat of ROOF MATE HT. Surfacesshould be washed using a biodegradable cleanersuch as UNITED’S United Cleaning Concentrate(UCC) only after the ROOF MATE HT film hasfully cured. Rinse thoroughly with clean, freshwater to remove all traces of the chemical cleanerand allow to dry. It is the responsibility of the applicatorto ensure that the roof is sound and slopedproperly, and that the expansion joints, vents andflashings have been installed as specified orrequired.As work proceeds, the applicator must periodicallycheck the number of gallons used compared to thesquare feet coated. If adequate gallonage has notbeen used according to UNITED’S published warrantyrequirements and/or project specifications,adjust accordingly and apply additional material topreviously coated area(s).In hot temperatures, partially full containers ofROOF MATE HT may surface-skin. Examinebefore mixing and remove skin (if present) prior tomixing. To prevent skinning in hot weather duringapplication or in partially full containers, cover containerwith polyethylene sheeting after mixing.ROOF MATE HT, properly mixed, is easilypumped and sprayed at temperatures of 60°F (16°C)or greater. Thinning or reducing the mixture is notrecommended. Addition of water reduces the richthixotropic nature of ROOF MATE HT anddecreases its ability to achieve a heavy film buildwith excellent vertical hold.ROOF MATE HT has excellent dirt releasing ability.Its smooth, low sheen surface resists penetrationof soil and contamination, allowing the surface to bereadily cleaned.Use water and United Cleaning Concentrate(UCC) or other similar detergent to thoroughlyflush equipment. Purge the water from the systemusing Mineral Spirits or Glycol Ether. Leave the solventin the lines and equipment until next use. It isnot recommended practice to leave ROOF MATEHT in the pump or hoses.LIMITATIONS & PRECAUTIONSROOF MATE HT should generally not be usedover cold storage tanks or buildings where a vaporbarrier is required. ROOF MATE HT will freezeand become unusable at temperatures below 32°F(0°C), or when there is a possibility of temperaturesfalling below 32°F (0°C) within a 24-hour periodafter application.ROOF MATE HT requires complete evaporationof water to cure. Cool temperatures and high humidityretard cure. Do not apply if weather conditionswill not permit complete cure before rain, dew,fog or freezing temperatures occur. Do not applyin the late afternoon if heavy moisture condensationmay appear during the night.ROOF MATE HT may be applied to a wide rangeof clean, dry and structurally sound substrates.Slope for positive drainage is recommended for anyroofing application.Avoid breathing of vapor or spray mist. For exteriorapplications, approved (MSHA/NIOSH) chemicalcartridge respirator must be worn by applicator andpersonnel in vicinity of application. Check filtersfrequently to ensure proper protection. If usedindoors, provide mechanical exhaust ventilation.During indoor spray operations, air line masks orpositive pressure hose masks must be worn. Avoidcontact with eyes and contact with skin.Adequate precautions must be taken when applyingROOF MATE HT to occupied buildings to ensurethat air conditioners and ventilation units are turnedoff and covered to prevent vapors from entering thebuilding. Windows should also be kept closed. Signsshould be posted around the area to advise buildingoccupants or visitors of the spray activity.It is good roofing practice to schedule an annualcleaning of the roof surface. This will eliminate theaccumulation of leaves, dirt, debris and other contamination.It will also alert the Owner as to anymechanical damage or other problems that maycompromise the integrity of the roofing system.Roofs subject to a high degree of traffic or pollutionfallout may require more frequent cleanings.For specific information on safety requirements.Refer to OSHA guidelines and ROOF MATE HTMaterial Safety Data Sheet.Distributed by: BEST MATERIALS LLCPh: 1-800-474-7570, 1-602-272-8128 Fax: 1-602-272-8014Email: sales@bestmaterials.com www.bestmaterials.comOur products are guaranteed to meet established quality control standards. Information contained in our technical data is based on laboratory and field testing, but is subject tochange without prior notice. No guarantees of accuracy are given or implied, nor does UNITED assume any responsibility for coverage, performance or injuries resulting from storage,handling or use of our products. Liability, if any, is limited to product replacement or, if applicable, to the terms stated within the executed project warranty.