Ua Ebbs Los Ntawm Cov Hlau Tsis Xeb, Nrog Rau Koj Tus Kheej Tes, Nrog Rau Cov Yam Ntxwv Ntawm Kev Teeb Tsa Thiab Kho

2024 Tus sau: Bailey Albertson | [email protected]. Kawg hloov kho: 2023-12-17 12:59

Galvanized steel ebb: kev tsim khoom, teeb tsa thiab kho cov txhob txhaws nrog koj tus kheej tes

Ebb dej ntas yog lub luag haujlwm rau kev khaws dej los ntawm cov nqes hav thiab thauj nws mus rau qhov chaw tso dej tawm, yog li ntawd, lawv yog cov tseem ceeb tshaj plaws ntawm kev tso dej ntws tawm. Vim yog qhov ntev ntev ntawm lub qhov dej txhaws, lawv cov kev paub tau txais yog qhov tseem ceeb ntawm tus nqi ntawm kev tsim kho tag nrho cov kwj paug. Tus nqi kawg yuav siab kawg, txawm tias koj xaiv cov khoom lag luam pheej yig. Tias yog vim li cas txhua tus kws saib xyuas tus kheej hauv tsev yuav tsum muaj peev xwm ua kom ebbs los ntawm galvanized hlau nrog nws tus kheej tes. Lub thev naus laus zis zoo hauv tshuab yuav tsis tsuas yog txuag cov peev nyiaj, tab sis tseem yuav ua rau nws muaj peev xwm tawm los ua tus yeej hauv qhov xwm txheej thaum cov tub ntxhais cov kev cai txhawm rau yuav tsum tau nruab rau lub ru tsev.

Cov Ntsiab Lus

• 1 Thev naus laus zis ntawm kev lag luam galvanized steel castings

  • 1.1 Cov cuab yeej xav tau thiab cov khoom siv

  • 1.2 Cov lus qhia ua ntu zus los qhia ua rau ua ebbs

    1.2.1 Yees duab: ua kom gutter

  • 1.3 Yuav ua li cas thiaj ua tau cov tuav ebb

    1.3.1 Yees duab: yuav ua li cas kom tsim tau-nws-koj tus kheej eband bracket

• 2 Kev teeb tsa ntawm ebb

  • 2.1 Cov txheej txheem rau kev txhim kho ebbs

    2.1.1 Yees duab: kev teeb tsa cov pob zeb txhaws

• 3 Kho ntawm galvanized steel gutters

Galvanized steel casting tshuab

Cov tuam txhab uas tsim cov hlau galvanized steel castings siv cov khoom siv khoov siv tshwj xeeb. Lub voos kheej kheej ntawm lub workpiece tau txais vim muaj kev hloov kho ntawm kev ntxhov siab sab hauv hauv cov hlau thaum lub sijhawm dov ntawm cov ntawv hlau ntawm lub tshuab yob. Yog lawm, kev yuav lossis ua cov khoom siv ntawd tsis muaj tseeb rau kev ua haujlwm ib zaug. Yog li ntawd, nyob hauv tsev, cov cuab yeej siv tes yog siv los ua cov khoom pleev ua haujlwm.

Rau kev ntsuas me me ntawm cov kua dej txhaws, cov ntawv tshwj xeeb khoov siv tshuab

Cov cuab yeej xav tau thiab cov ntaub ntawv

Ua ntej koj pib pib tsim cov ntaub pua tsev rau lub ru tsev nrog koj tus kheej tes, koj yuav tsum npaj txhua yam koj xav tau. Thawj qhov uas yuav xav tau rau kev ua haujlwm yog, ntawm chav kawm, galvanized steel. Kev lag luam tsim tawm cov ntawv hlau ntawm ntau lub thicknesses, yog li ntawd cov duab ntawm lub neej yav tom ntej txhawm rau ua tus xaiv kev xaiv. Rau cov khoom lag luam ntawm L-puab lossis duab plaub, koj tuaj yeem siv galvanizing nrog tuab ntawm 0.5-0.7 hli - qhov no yuav cia koj yooj yim tiv nrog nws ua. Classic semicircular ebbs los ntawm xws li cov khoom siv uas tsis muaj txhav txhav yuav dhau flimsy, yog li rau lawv kev tsim khoom nws yog qhov zoo dua rau coj daim ntawv hlau 1 hli tuab lossis ntau dua.

Galvanized daim ntawv hlau yog cov cov khoom tsim nyog tshaj plaws rau kev ua cov khoob

Tom ntej no kom them sai sai rau qhov zoo yog qhov tsis muaj zog tiv thaiv txheej. Raws li cov qauv, kev nqus tshwj xeeb ntawm cov zinc txheej yuav tsum yog tsawg kawg 270 g / m ². Lub khw muag khoom muaj cov ntaub ntawv zinc-coated steel los ntawm 60 txog 270 g / m ². Nco ntsoov soj ntsuam cov kis no nrog tus muag khoom, vim tias qhov sib txawv ntawm tus nqi yuav tsis loj, tab sis kev ua kom ntev ntawm lub ru tsev hlau yuav txawv ob peb zaug.

Hauv kev ua haujlwm, koj tuaj yeem siv cov ntawv steel nrog cov txheej polymer, tab sis tsuas yog cov khoom zoo, zoo-tsim nyog rau qhov no. Nws tsis yog qhov nyuaj kom pom nws qhov zoo - tsuas yog khoov lub kaum pob ntawm cov ntawv ntawm kaum sab xis thiab saib lub xeev ntawm cov txheej pov puag. Yog tias nws tau khaws nws cov qauv qub, tom qab ntawd txheej yuav tsis tawg thaum lub sij hawm txhaj tshuaj molding, uas txhais tau tias nws zoo meej rau cov haujlwm ntawm tes. Yog tias txheej polymer puas thiab peels tawm, tom qab ntawd koj yuav tsum tsis txhob yuav cov hlau zoo li no - dej yuav ntws mus rau cov kab nrib pleb, thiab cov hlau yuav nrawm ua kom tiav xeb.

Cov cuab yeej uas koj xav tau los ua cov galvanized sills:

• roj hmab thiab ntoo ntoo;
• rab rauj;
• txiab rau hlau;
• pliers;
• roulette;
• kav;
• ntaus cim lossis xaum;
• lub kaum hlau ncaj ncaj nrog lub txee qhov dav ntawm tsawg kawg 50 hli;
• daim ntawm cov yeeb nkab steel nrog lub cheeb ntawm tsawg kawg 100 hli raws li qauv;

• ntoo lath nrog ib txoj kab uas hla ntawm tsawg kawg 20x30 hli.

  

  Cov cuab yeej yooj yim tshaj plaws yuav tsum tau ua rau ebbs.

Txij li cov nkhaus rau txuas lub txhav tseem tuaj yeem ua tau los ntawm txhais tes, koj yuav tsum ntxiv txhawm kev tsim cov tsheb nqaj hlau 20-30 hli dav nrog qhov tuab tsawg kawg ntawm 2.5 hli thiab ib daim hlau tuab 1 hli tuab. Koj yuav xav tau nyias hlau los ua cov ntawv txiav. Koj tuaj yeem muab lawv rau tus tuav tuav siv rivets, lossis siv tshuab vuam siv.

Cov lus qhia ib qib-ib-qib ib zaug rau kev ua rau ebbs

1. Ib txoj hlua khi nrog qhov dav ntawm 180-220 hli yog txiav los ntawm daim ntawv ntawm cov hlau galvanized.

   

   Ob txhais tes thiab hluav taws xob cov cuab yeej tuaj yeem siv los txiav cov ntawv galvanized

2. Cov kab yog kos ntawm qhov deb ntawm 5-10 hli los ntawm txhua lub ntug ntawm qhov haujlwm. Yav tom ntej, lawv yuav xav tau txhawm rau khoov. Qhov flanging tsis tsuas yog ua rau lub gutter ntau dua, tab sis kuj tseem ua rau muaj kev nce ntxiv hauv nws cov rigidity.

   

   Flanging raws tus ntug ntawm tus kwj deg yuav ua rau nws ua rau muaj kev txhav dua

3. Kev siv cov pliers, cov hlau yog khoov raws cov kab cim ntawm lub kaum ntawm 90 ^o. Cov kab flanging yog theem. Txhawm rau ua qhov no, qhov workpiece tau pw ntawm lub kaum hlau thiab tapped nrog mallet, nqa lub kaum sab xis ntawm qhov khoov mus rau 130-150 ^o.

   

   Txhawm rau tsim cov flange yam tsis muaj kev puas tsuaj saum npoo ntawm cov ntawv galvanized, siv ntoo xov ntoo

4. Txhawm rau ua kom muaj lub semicircular ebb, nws tau tso rau ntawm txoj haujlwm hnyav hauv txoj kev uas cov quav tau ncaj rau hauv qab. Txhawm rau tiv thaiv cov haujlwm ua haujlwm mus, nws yuav tsum muaj kev ruaj ntseg nrog clamps. Tom qab ntawd, ib daim ntawv xa cov yeeb nkab steel nrog lub taub 100 hli los yog ntau dua tau pw ntawm ntug ntawv, uas yuav tsum tau muab kho nrog clamps los ntawm qhov xaus. Ntxiv mus, qhov chaw ua haujlwm yog maj mam khoov ib ncig ntawm tus qauv, tapping nrog ntoo mallet rau saum nws lub ntsej muag tag nrho. Tom qab cov khoob tau txais cov duab uas yuav tsum tau ua, cov clamps tau raug tshem tawm thiab cov khoom tom ntej tau tsim.

   

   Txhawm rau kom tau txais cov kab ntu semicircular, siv cov yeeb nkab ntawm lub taub uas haum

5. L-puab tus ebb yog qhov yooj yim dua kom ua. Txhawm rau ua qhov no, pom qhov nruab nrab ntawm daim ntawv ntawm txhua sab thiab kos kab nruab nrab. Dabtsi yog khoov yog ua siv cov ces kaum hlau lossis ib lub ntsej muag ntoo, uas txuas nrog rau ntawm ntug kev ua haujlwm. Qhov chaw ua hauj lwm tau nteg kom nws txoj kab hauv nruab nrab yog qhov tseeb tshaj qhov ntug ntawm tus qauv thiab yog tapped nrog mallet kom tau khoov ntawm lub kaum ntawm 90 ^o. U-puab zawj yog tsim tib txoj kev, tab sis ob txoj kab txuas ua ke tau siv ntawm qhov sib txawv ntawm 60-80 hli ntawm qhov ntug ntawm qhov kawg ntawm qhov chaw ua haujlwm thiab ob txoj cai ces kaum yog khoov.

Yog tias, tom qab kev tsim cov ntu ntawm semicircular, nws cov npoo yog me ntsis faib rau ob sab, nws tsis muaj qhov cuam tshuam - tom qab kev teeb tsa hauv cov neeg tuav nruj, qhov teeb tsa yuav rov ua dua.

Yees duab: ua tus swb

Yuav ua li cas ua ebb tuav

Lub ging hooks tuaj yeem khoov tau los ntawm ib txoj kab hlau. Ib txoj hlua hlau nrog ib ntu ntawm 20x2.5 hli yog qhov tsim nyog, txij li cov hlau tsis muaj zog yuav tiv nrog cov daus thiab dej khov ua ke nyob rau hauv qhov dej hauv lub caij ntuj no. Yog tias nws tsis muaj peev xwm yuav cov log tsheb zoo li no, ces cov neeg tuav yuav raug txiav los ntawm cov ntawv steel ntawm cov tuab uas haum. Ua li no, nws yuav tsum tau khij los ntawm tracing qhov yuav tsum muaj pes tsawg tus strips 20-30 mm dav thiab 400 mm ntev.

Txhawm rau tau txais ntau tus tuav ntawm tib hom, koj yuav tsum tau tsim cov cuab yeej tshwj xeeb. Kev khoov ntawm C-nkhaus tuaj yeem ua kom nrawm yog lub nplhaib 50 hli los ntawm pipe100 hli yeeb nkab thiab ib qho clamp ntsug los ntawm a15 hli pas nrig ntawm tib qhov ntev yog welded mus rau ib daim ntawv hlau. Ib txoj hlua khiab ntawm cov duab uas xav tau yog tau los ntawm kev tuav lub tog raj steel nyob rau hauv ib lub tshuab ua kom nruj thiab muab nws nyob ib ncig ntawm cov yeeb nkab. Cov cuab yeej siv rau kev tsim cov voos lossis cov duab sib dhos ua ke tuaj yeem ua los ntawm cov ntoo ntoo, cov hlau ib tog lossis cov yeeb nkab profile.

Thaum ua cov tuav nrog koj tus kheej tes, nco ntsoov coj mus rau hauv tus account lawv cov duab thiab qhov loj me ntawm ebb

Tom qab txoj hlua kawg khi tau khoov, 2-3 qhov yog tsim ntawm txoj kab sib txuas ntawm txoj kab txuas rau kom ua kom nrawm rau cov vuv tsev ntoo. Tsis tas li ntawd, 3-4 hli tuab cov xaim lossis cov kav hlau loj txog li 1 hli tuab tuaj yeem ua welded raws cov npoo ntawm qhov nkhaus ib feem ntawm qhov sib ntsib. Lawv yuav tsum muaj qhov xav tau txhawm rau txhawm rau txhim kho cov kua dej hauv lub yas dhos.

Tom qab tsim tus nuv tas los, cov khoom pleev xim rau. Cov xim yuav ntxiv kev ua tiav rau cov ntsiab lus thiab tiv thaiv hlau ntawm xeb.

Video: yuav ua li cas kom tsim tau-nws-koj tus kheej eband bracket

Ebb installation

Kev ua kom sai ntawm galvanized ebbs yog nqa tawm hauv ntau theem, ua haujlwm hauv qhov kev txiav txim siab nruj. Tsuas yog nyob rau hauv rooj plaub no peb tuaj yeem cia siab tias lub gutter yuav raug ntsia ntawm lub ces kaum sab xis, thiab tus lej nkhaus yuav tsis dai ntawm huab cua. Tom ntej no, peb yuav muab cov lus qhia txog kev coj ua, thiab tam sim no peb xav kom koj paub koj tus kheej nrog cov npe ntawm cov cuab yeej xav tau hauv kev ua haujlwm:

• dabtsi yog khoov siv rau hooks;
• zuam;
• lub kaum sab xis grinder lossis hacksaw rau hlau;
• riveter;
• laum hluav taws xob;
• ntsia hlau loj;
• rab rauj;
• roj hmab mallet;
• txiab rau hlau;
• qaum;
• roulette;
• mem hluav.

Cov xwm txheej tseem ceeb rau qhov kev ua haujlwm siab ntawm qhov dej ntws yog qhov ncaj ntawm lub qhov dej thiab ua kom tau raws li cov nqes hav suav nrog. Nws yog qhov zoo tshaj plaws los siv qib qib laser los kos tus cim txuas ntawm cov nkhaus txuas. Yog tias koj tsis muaj cov cuab yeej siv ntawm tes, tom qab ntawd koj tuaj yeem siv tus ntsuj plig yooj yim (qib hydraulic).

Tus txheej txheem installation Ebb

Ib txoj kab sib tshooj uas muaj lub ntsej muag yog lub teeb pom kev ncaj, yog li ebb tuaj yeem txuas ob qho tib si rau ntawm tus nqaj ceg thiab rau sab xub ntiag (qee zaum kuj hu ua cua) pawg thawj coj. Nyob rau hauv rooj plaub thawj zaug, lub installation tau ua tiav ntawm theem ntawm kev tsim ru tsev, ua ntej tso cov khoom vov tsev. Rau lub hom phiaj no, elongated nkhaus yog siv, uas tau muab tso rau ntawm rafter ceg thiab tsau nrog tus kheej tapping screws. Kev ua kom nrawm nrawm rau hauv txoj kev no tuaj yeem ua tau tsuas yog tias lub pob tw tsis siab tshaj 0.6 m.

Thaum txhim kho ebbs, nws yog ib qho tsim nyog yuav tsum coj mus rau hauv tus lej ntawm hom kev txuas, txoj kab nqes thiab qhov deb ntawm lub rooj tsav xwm pem hauv ntej.

Raws li rau kev teeb tsa ntawm cov nkhaus ntawm cov cua tshuab, cov qauv no ua rau nws tuaj yeem nruab rau qhov khoob khoob ntawm qhov kawg ntawm kev ua tiav lossis qhov xav tau.

Ua-nws-koj tus kheej ua haujlwm ntawm kev teeb tsa ntawm galvanized ebbs yog nqa tawm hauv cov kev txiav txim hauv qab no:

1. Txav deb ntawm txoj kab nqes, qhov txuas ntxiv ntawm thawj qhov tuav tau xaiv. Nws yuav tsum yog nyob rau hauv qhov siab uas lub ebb nyob ze ze li sai tau rau poob dej los yog ntug ntawm lub ru tsev. Lub ebb yog teeb tsa nyob rau hauv xws li txoj kev uas dej ntws los ntawm lub ru tsev lossis dej ntws tsis ntog rau ntawm phab ntsa, tab sis nyob rau hauv qab ntawm gutter.

2. Kev siv tus kheej ntsuas phuam ntsia hlau thiab rab hau ntswj, tus xov tooj txuas rau ntawm ib daim txiag lossis rafter.

   

   Ebb nkhaus tuaj yeem txuas rau rafter ceg lossis cua tshuab

3. Nrhiav qhov taw tes ntawm kev txuas ntawm cov khoob, ntawm txuas ntxiv mus rau qhov downpipe yuav nyob. Rau qhov no, nws yooj yim rau kev siv laser lossis dej qib, uas qhov tawm ntawm txoj kab nqes ntawm 2-3 hli rau 1 ntu khiav ntawm txoj kev ntuag qis. Tsom ntsoov rau ntawm txoj kab no, kab ntsig ntsig yog nruab rau ntawm qhov chaw siab heev.

4. Txhawm rau ua kab ntawm 15 cm los ntawm lub funnel, ib lub cim thib ob yog ntsia.

   

   Thaum txhim kho lub sib ntsib, tsis tsuas yog kho cov kab rov tav raws qhov siv txoj hlua khi siv, tab sis kuj tseem ua haujlwm ntsug

5. Ib txoj kab kev tsim kho yog rub ntawm tus tuav huab, uas yuav ua tus taw kev thaum nruab kev nruab nrab ceev nrawm.

   

   Koj tuaj yeem nruab tus tuav tuav hauv ib kab siv txoj hlua khi ntawm nruab nrab ntawm cov khoom sib txawv

6. Lwm cov tuav tuav yog mounted. Cov vaj tsev galvanized eaves muaj cov ntawv txheem ntev 2 m, yog li nws yuav yooj yim yog tias koj xaiv qhov kev ncua deb ntawm cov nkhaus sib npaug ntawm 1 m. Dua li ntawm qhov tseeb tias qee qhov chaw xav kom koj nruab hooks txhua 0.5-0.6 m, rau qhov lub teeb qauv raws li lub qhov dej tau ua los ntawm cov hlau tsis xeb, qhov no yuav txaus, tshwj xeeb tshaj yog tias koj nruab cov hooks muaj zog nrog lub tuab ntawm 2.5 hli.

   

   Yog tias cov cim nkhaus raug ntsia ntawm qhov deb ntawm 1 m ntawm ib leeg, tus qauv ob-meter qhov khoob yuav ua kom tiav ntawm peb cov kev txhawb nqa

7. Thawj tus ebb yog pw pib ntawm qhov qis tshaj. Nws yog qhov tsim nyog yuav tsum xyuas kom meej tias cov dej los ntawm nws tsis poob rau hauv nruab nrab ntawm lub funnel, tab sis mus rau nws ze ntawm phab ntsa. Hauv qhov no, thaum tus da dej hnyav, dej yuav tsis phwj.
8. Lub khoob khoob tso rau qhov chaw, rau qhov uas cov npoo ntawm cov tuav tau muab tais rau sab hauv thiab nias nrog cov hlua tawv.
9. Txhua nthwv dej tom ntej yog nteg rau yav dhau los nrog kev sib tshooj ntawm 7 txog 10 cm.
10. Qhov kawg ebb yog txiav rau qhov loj me thiab muab tso rau hauv qhov chaw. Tom qab nws ruaj rau hauv tus tuav, lub hau kawg tau nruab rau ntawm nws ntug.

Cov yeeb ncuab tseem ceeb ntawm galvanized outflows yog cov ceg ntoo, uas tuaj yeem ua kev tiv thaiv kev tiv thaiv hlau txheej thiab ua kom nrawm xeb. Txhawm rau tiv thaiv lub dab, lawv lub sab sau nrog nrog gratings lossis mesh. Niaj hnub no, koj tuaj yeem nrhiav perforated tiv thaiv ntawm ib hom - ua los ntawm cov yas, hlau lossis tooj daj. Lub mesh tuaj yeem muab kho ib txhij nrog kev teeb tsa lub qhov dej txhawm los ntawm kev tso nws cov ntug hauv qab ntawm qhov tuav ntawm cov nkhaus.

Yees duab: installation cov txhob txhaws

Kho kho cov nplais galvanized steel

Ib qho kev cuam tshuam loj ntawm galvanized steel gutters yog tias yog tias kev tiv thaiv txheej txheej puas ntsoog, qhov txheej txheem corrosion tau ua nrawm dua li nws ua nrog cov hlau tsis huv. Txij li thaum lub thickness ntawm xws ebbs feem ntau tsis tshaj 0.7 hli, los ntawm xeb tshwm rau ntawm thaj chaw puas tom qab ob peb xyoos.

Txhawm rau tiv thaiv cov txheej txheem ntawm kev rhuav tshem hlau, koj yuav tsum kuaj xyuas qhov ebb kom tsis tu ncua thiab kho lawv txoj kev kho. Feem ntau, kev tiv thaiv yog nqa tawm ob zaug hauv ib xyoos - thaum lub caij nplooj ntoo hlav thiab lub caij nplooj ntoo zeeg. Thaj chaw puas los ntawm dej khov lossis ceg yuav tsum tau muab ntxuav, degreased thiab pleev xim dua nrog cov kua roj vanish rau cov haujlwm hlau. Hauv thaj chaw ntawm cov dej ntws, muab zais los ntawm qhov pom, rau lub hom phiaj no, koj tuaj yeem siv tus txha hniav laus rau sab nraum zoov.

Yog tias nws tsis tuaj yeem tiv thaiv kev puas tsuaj ntawm cov hlau thiab thaj chaw nrog los ntawm kev xeb tau tshwm sim ntawm ebb los ntawm cov hlau tsis xeb, ces lawv tuaj yeem kho. Rau qhov no:

1. Muab rov qab nkhaus txoj kab uas tuav kom ruaj ruaj thiab tshem cov pob tsis zoo uas tsis ua rau kab nkhaus.
2. Yog hais tias sab phab ntsa ntawm qhov khoob tau corroded, ces ib daim ntawv ntawm galvanized steel yog thov rau thaj chaw puas. Txhawm rau ua qhov no, daim duab plaub raug txiav tawm los ntawm cov ntawv hlau, uas yuav mus hla cov hlau tsis muaj txheej txheem nrog rau kev sib tshooj ntawm 20-30 hli, thiab ua kom nrawm nrog rivets. Yuav kom tsis txhob ua kom puas qhov pom ntawm cov dej ntws tawm, lub ebb raug teeb tsa hauv qhov chaw nrog sab kho rau phab ntsa.
3. Nyob rau hauv rooj plaub thaum xeb tau kov qhov hauv qab ntawm cov khoob, tom qab ntawd cov chaw viav vias yog txiav tawm tag nrho. Txhawm rau txhim kho ebb, ib daim ntawm galvanized hlau ntawm tib lub teeb tsa siv. Nws yuav tsum yog 20 cm ntev dua li qhov txiav tawm ib feem, txij li ib feem sib tshooj thaum txhim kho lub thaj. Nco ntsoov ua tib zoo saib xyuas seb daim ntaub yuav pleev qhov twg. Los ntawm ib sab ntawm lub raj tso dej tso dej, nws yog tsau dhau ntawm lub nrawm qis, thaum los ntawm lwm qhov ntug nws yuav tsum yog nyob hauv qab - qhov no yuav tsis pub dej ntws mus rau hauv qhov sib txawv. Koj tuaj yeem kho qhov kho vaj tse nrog txhuas rivets. Nws yuav muaj peev xwm kom tsis txhob muaj dej pom yog tias cov pob qij txha tau kho nrog lub foob dej-tiv thiav.

Cov txheej txheem ntawm kev ua ebbs los ntawm galvanized hlau nrog koj tus kheej txhais tes tsis yog qhov nyuaj thiab siv tau txawm tias tus pib tshiab. Txij li cov txhauv yuav raug nqi tus nqi ntawm cov ntawv hlau, cov gutter system yuav pheej yig dua li cov tiav lawm, txawm hais tias cov khoom siv tas (lom zem, kav dej, thiab lwm yam) tau yuav los ntawm cov khw muag khoom sib txuas. Tab sis hais tias tsis yog txhua txhua. Cov kev muaj txiaj ntsig ntawm kev ua haujlwm nrog galvanized hlau yuav pab tau rau lwm txoj haujlwm zoo li. Piv txwv li, thaum ua lub luag hauj lwm chimney deflector, lub vav huab cua zoo nkauj lossis cov visor zoo nkauj nyob ntawm sab qhov rooj.