b'Dealing With Closed Specs Continued from page 3 antee is called an exclusion,exclusion is athat you can use and anreason toan owner\'s warranty.getand discolor.that hapvoidRoofs dodustyWhen pens it changes visual appear onexclusion, ifroof gets ance. Basedthisthe d ty, the manuf rat theirleion,idwarranty. ir acture can,so discret vo the that And that does not seem reasonable to me. In my opinion,should not be aion permitting the manufacturer to voidowner\'s guarantee. condit the Questions &swers AnContinued from page 4 Sheets." It shou be notedt iffing (tear-off or re-cover) isconldtha reroo not ductedaccordance with Class 1uirements,existing Class 1 inreq anassemowngradedClassassemb which bly can be d to a2ly,can result in increased insurance premiums for the bu owner. ilding FM also uses classifications for wind resistance. Ifhave only been systems evalua rare classified as "Class 60," "Class 90,"1ted fo wind, they"Class20." Systems only evaluated for wind resistance shouldconsid as fire hazbeered sys as ard Class 2. If thetems have been evaluated for fire hazard as wellwind 20resistance, they are classified as "Class 1-60," "Class 2-90," "Class 1-1 ," etc. The Prevention of Work Related Injuries Through Exercise Continued from page 5 workers to warm-up and stretch prior toand afterbreaks. Warmworkany up exercises need only take several minutes to perform and cantargeted be shouldersro fers. to specific areas such as the low back andforoba and end rance Keeping alance between strength, flexibilityu is essential to limit the risk of injury. It is when one extends atend ligamuscle,on, ment or jo beyond its flexibility thatinjuryoccur, such as inttissuecan sprains or strains. It must also be understood that hard work isthe same not as exer .h roofers cert do p llywork,is cise Alt oughainlyhysica demandingthdoes not substitute for the different types of exercise. Workers perform a lotFABRICATEDM ETAL D ECK uckets feltWhile helping of lifting including ladders, b ,rolls, etc.to maintain strength, this type of activity actuallyracts or tightens muscles.recont The FURNISHED ANDINSTALLED/ fore, doing stretching isial to maintain ain the body between essent balance strength andility. flexib STOCK D ECK SALES Picturedare severalexercises thateffective for belowstretchingarethe Ofanyo cur entou consulshoulders and back.course,ne with ar injury sh ldt theiror p therapist prior tothese exercises. T exer Serving Chicago/and For Over 25 Years doctorhysicaltryinghese cises should not cause pa . inPerformingu T tsises would bestep in the process of reducinglllt such exerc one work-related inj ries.he more an em educates and supports its workployer ersa ing the benefi of e rcise, the greater the potential will be for sucreg rd xecess. as Areo ConstructionTrodes,Inc. Firestone Announces 1997 M ter Contractors and President\'s Club Hemhers Continued from page 61723 E, Wilson Street,Butuvia, IL 60510 (630)879-7757Fox(630)879-8131 Firestone Building Products Company is a leading manufactu oflerersingply EPDM and asphalt-based roofingtems; a wh hot-air welded, thersys ite, moplastic roofingpolyisocyanurate insulation; and alete line system;compof installation accessories. 8'