Tham khảo tài liệu 'mechanical estimating manual episode 7', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | This page intentionally left blank Chapter 9 SheetMetalEstimating Basics REQUIREMENTS OF A PROFICIENT SHEET METAL ESTIMATOR The crux of successful contracting is built on a foundation of complete a nd accurate estimates with proper markups. Sohd estimates are produced by competent and reliable chart mrtalestimittoss oped dwougli tier followmg backsroond of Iceiowkdgr-procrduree tkihs anol ESTIMATING PRINCIPLES AND PROCEDURES 1. They must follow sound efficient procedures for peepcoing sstimarkSi swell ret Become thoroughly familiar with the project the types o. systomo eso duotwook ievolvod in te scope of work ghe sn toe -tiding detaded .akeoha. Be Familiar with budget estimating HVAC costs for diffesent bsddin bosed on cnsf pertquare foon of buildiug oc cose pnr .on sd aứ connhtioomg atoounr of duebinotk .or rquoco foot ife averkfe eUe oott of duetwcrk per linear fooL p sg pound or qcr square to kL Know the major categories of an estimate Equtkmepr Ductwork P ing D uct Accessories and Sheet Metal Specialties Subcontractors End Cc uio Factor. tnuch as sales tax M arkups .Ls Ovuohean and Poofit Must be familiar with detailed scope of what is required m a sheef motae eehe-ctd. Highlight drawings before doing the takeoff. Follow systematic overall procedure. study me gCacs onn o oo Send eu- guoraiioore ecte ffighhgh- Drawmgs Maka Topeoff gnd extonsions Summarize Recac asf maqkups Do constant systematic checking on each part as you go ttkntig ond ovecsn an tnP end. DooHo check evergihing. 2. They must have the ability to read blue prints rec-ognice c sbole1 tydes ol2 onct work equipmeot Cl nd system. de. Air Distribution Systems 3. They msst be familiitr with the different types of HVAC cgSms fuch as Low aeefoong nonsLt ntohdnme systems SiegH zoue mslLggne High presca tc conotonl vdorno syekme Dco 10 indudton rehcd termmals Variable aig uol -me GooMigon ly. coshng reheat terminals Fan Cowered. .ual
