1721 70TH PL SE 2016-09-15 - Laserfiche WebLink

• i Microlite° EQ Formaldehyde-free'Fiber Glass Duct Wrap Insulation Application Recommendations The R-value will vary depending upon how much the insulation is Before applying ductwrap,sheet metal duct shall be clean,dry and compressed during installation.To obtain the published installed tightly sealed at all joints and seams. R-values,the insulation stretch-out should be determined using the Wrap insulation around duct with facing to the outside so the 2"(51 mm) following table: flap completely overlaps facing and insulation atthe other end of stretch- Duct Wrap Stretch-outs out.Insulation shall be snugly butted. Installed Secure seams with outward clinching staples placed approximately Labeled Compressed 6"(152 mm)on center.If required,seal seam with pressure-sensitive Thick.(in) Thickness(in) Round Square Rectangular tape designed for use with duct insulation.Insulation on the underside of 1 0.75 P+7.0" P+6.0" P+5.0" ducts spanning 24!'(610 mm)or greater shall be secured with mechanical 1%2 1.125 P+9.5" P+8.0" P+7.0" fasteners and speed clips spaced approximately 18"(457 mm)on center. 2 1.50 P+12.0" P+10.0" P+8.0" Fasteners should be cut off flush after the speed clips are installed,and 2'A 1.75 P+13.0" P+11.0" P+8.5" when required,sealed with the same tape as specified above. 3 2.25 P+17.0" P+14.5" P+11.5" Stretch-outs include2"(51 mm)for overlap.P=perimeter of duct to be insulated Adjacent sections of duct wrap insulation shall be snugly butted with the circumferential 2"(51 mm)tape flap overlapping and secured as Prepare overlap by removing approximately 2"(51 mm)of insulation recommended for the longitudinal seam.When a vapor seal is required, from facing. two coats of vapor retarder mastic reinforced with one layer of 4" (102 mm)wide,open-weave glass fabric may be used in lieu of pressure- sensitive tape. Stretch-out Dimension Guide Specifications Insulation for Metal Ducts.All ducts shall be insulated on the outside with a Formaldehyde-free"flexible glass fiber blanket.Microlfte EQ Formaldehyde-free'fiber glass duct wrap insulation should have a minimum installed R-value*of and a Typefacing. 2.151 mm) Insulation shall be furnished with a factory-applied facing with a Overlap composite UL FHC rating of 25/50. .The minimum insulation installed R-value should be determined in accordance to the duct operating and ambient conditions. Thermal Conductivity(ASTM C518) Installed R-values V k Labeled Compressed Thickness Labeled Thickness Thickness Installed"R"** Out-of-Package"R" Type Btu•in/(heft'•°F) W/rl Btu•in/(hr•ft'•°F) W/m•*C Type in mm (heft'•°F)/Btu m'•°C/W (heft•°F)/Btu m'•°C/W 75 0.27 0.039 0.29 0.042 75 1%2 38 4.2 0.74 5.2 0.92 100 0.25 0.036 0.27 0.039 2 51 5.6 0.99 6.9 1.22 2%3 58 6.5 1.15 8.0 1.41 150 0.24 0.035 0.25 0.036 3 76 8.3 #( 1.46 10.3 1.81 Conductivityat75*F(24*C)mean temperature. 100 1%2 38 4.5 0.79 5.6 0.99 *Tested with material thickness compressed 25%. 2 51 6.0 1.06 7.4 1.30 150 1%2 38 4.7 0.83 6.0 1.06 2 51 6.3 1.11 8.0 1.41 **Installed R-value calculated with a material thickness compressed to a maximum of 25%following recommended duct wrap stretch-outs. The physical and chemical properties of the Microlite®EQ Forma ldehyde-free"fiber glass duct wrap insulation listed herein North American Sales Offices, represent typical,average values obtained in accordance with Insulation Systems accepted test methods and are subject to normal manufacturing Eastern Region variations.They are supplied as a technical service and are subject P.O.Box 158 to change without notice.Numerical flame spread and smoke Jiu Defiance,OH 43512 developed ratings are not intended to reflect hazards presented by (800)334-2399 these or any other materials under actual fire conditions.Check with Fax:(419)784 7866 the Regional Sales Office nearest you to ensure current information. Johns Manville All Johns Manville products are sold subjectto Johns Manville's 717 17th St. Western Region and Canada standard Terms and Conditions,including Limited Warranty and P.O.Box 5108 Limitation of Remedy.For a copy of the Johns Manville standard Denver,CO 80202 Denver,CO 80217 Terms and Conditions,Limited Warranty and Limitation of Remedy, 800-654-3103 (800)368-4431 and information on other Johns Manville thermal insulation and www.JM.com Fax:(303)978-4661 systems,call(800)654-3103. HVAC-448 5/15(Replaces 11/14) ©2015 Johns Manville.All Rights Reserved.