Ua taubutyl mounting daim kab xevhloov duct sealant? Lub caij ntuj no dhau los, kuv tau tswj hwm qhov rov qab ua haujlwm rau 45,000-sq-ft chaw ua haujlwm hauv Chicago. Cov ducts uas twb muaj lawm tau xau tsis zoo-peb ntsuas ze li ntawm 18% cov pa tawm ntawm tus qauv duct- blaster test. Cov spec hu rau txhuam- ntawm mastic ntawm txhua qhov sib txuas sib txuas thiab sib txuas. Tab sis lub tsev tau nyob tag nrho, thiab peb tsuas muaj hmo ntuj thiab hnub so ua haujlwm. Qhuav lub sij hawm rau mastic (4-6 teev ib lub tsho tiv no, ob lub tsho tiv no pom zoo) yuav tua peb lub sij hawm.
Yog li kuv tau npaj sivbutyl mounting daim kab xevhloov dua siab tshiab -tshwj xeeb yog 1/8 "-thick, UL 181B-P-listed daim kab xev los ntawm cov chaw tsim khoom loj. GC tsis ntseeg; Nws yeej ib txwm siv mastic. Kuv tau hais kom khiav ib qho kev sim ib sab ntawm ob qhov sib npaug 20-ft ducts hauv chav tshuab tshuab. Ib tug tau mastic nrog fiberglass mesh; lwm tus tau txais butyl daim kab xev dov khov kho ntawm cov seams nrog J-roller. Peb lub siab-kuaj ob qho tib si ntawm 2.0" wg tag kis sawv ntxov. Lub mastic seem xau ntawm 2.3 CFM ib square feet; cov kab xev ntsuas 1.9 CFM- zoo dua me ntsis, tab sis ze txaus hu nws khi.
Qhov sib txawv tiag tiag tshwm sim tom qab peb lub lis piam. Peb muaj ib tug txias snap, thiab lub ru tsev chav tsev cycled hnyav heev. Thaum kuv rov ntsuam xyuas cov ntu qub, mastic tau tsim ob txoj kab plaub hau nrog cov tsav cleats - leaked dhia mus rau 3.1 CFM. Butyl daim kab xev tseem tuav ntawm 2.0 CFM. Qhov flex-thiab-nyob-nplaum ntawm butyl, uas kuv tau nyeem txog hauv SMACNA cov txheej txheem kev sib khi, tau ua pov thawj tseeb hauv cov xwm txheej tiag tiag.
Peb tau siv daim kab xev rau ntau dua 80% ntawm cov khoom siv qis qis (hauv qab 2" wg) thiab txuag kwv yees li 40 teev ua haujlwm -txog ob qhov kev hloov pauv tag nrho - tsuas yog hla lub ziab kom qhuav. Peb tau khaws mastic rau lub ntsiab plenum qhov twg cov siab zoo li qub ntaus 3.5" thiab rau tag nrho cov kauv mus rau hauv cov kab nrib pleb 'txoj kev sib sib zog nqus. tav.
Ib zaj lus qhia: kev npaj saum npoo tseem tseem ceeb. Ntawm ob peb lub pob qub qub, daim kab xev tau tev tawm tom qab ib lub lim tiam - peb yuav tsum tau rov ntxuav nrog cawv thiab rov ua dua. Thaum peb tswj hwm txoj cai ntawd, tsis muaj kev hu rov qab.
Yog li puas tuaj yeem butyl mounting daim kab xev hloov duct sealant? hloov sealant? Hauv kuv phau ntawv, yog - txog li peb feem peb ntawm cov qauv ductwork. Nws tsis yog universal nyiaj mos txwv, tab sis nws tsis yog ib qho kev sib haum xeeb; nws yog lub sij hawm-saver uas tuav tau ib yam nkaus thiab zoo dua nyob rau hauv thermal cycling. Kuv tseem khaws ib lub hnab ntawm mastic ntawm lub tsheb, tab sis tam sim no nws yog lub thaub qab, tsis yog lub neej ntawd. Lwm zaus koj tab tom twv txoj haujlwm nruj, khiav koj tus kheej xeem- tej zaum koj yuav xav tsis thoob.
