Rwb thaiv tsev hauv pem teb nrog nthuav polystyrene

Cov txheej txheem:

Rwb thaiv tsev hauv pem teb nrog nthuav polystyrene
Rwb thaiv tsev hauv pem teb nrog nthuav polystyrene
Anonim

Variants ntawm kev siv nthuav polystyrene rau insulating plag tsev ntawm ntau hom, qhov zoo thiab qhov tsis zoo ntawm cov txheej txheem ntawm cov cua sov rwb thaiv tsev, xaiv cov khoom siv. Cov cua sov rwb thaiv tsev hauv pem teb nrog nthuav polystyrene yog qhov pheej yig thiab yooj yim rau kev ua kom sov hauv tsev ntawm txhua theem ntawm kev tsim tsev. Kev siv cov khoom siv no coj lwm cov txiaj ntsig: nws nqus tau cov suab nrov ntawm lub qab nthab cuam tshuam thiab ua haujlwm ua ib qho thaiv pa zoo. Qhov rwb thaiv tsev tau siv thiab yuav nruab nws li cas, peb yuav tham hauv kab lus no.

Nta ntawm kev ua haujlwm ntawm rwb thaiv tsev hauv pem teb nrog nthuav polystyrene

Ua haujlwm ntawm rwb thaiv tsev hauv pem teb nrog nthuav polystyrene
Ua haujlwm ntawm rwb thaiv tsev hauv pem teb nrog nthuav polystyrene

Extruded polystyrene ua npuas ncauj yog cov cua sov ua kom sov ua los ntawm polystyrene thiab styrene copolymers nrog ntxiv ntawm ntuj lossis carbon dioxide. Nws yog tsim los ntawm extrusion los ntawm extruder, li no lub npe. Qhov tshwm sim yog cov khoom ntxeem tau zoo nrog kev faib tawm ntawm cov cell, qhov ntev uas tsis pub tshaj 0.1-0.2 hli.

Cov khoom siv tau cim nrog XPS thiab lwm tsab ntawv thiab tus lej cim, txhua lub chaw tsim khoom muaj nws tus kheej. Piv txwv, Styrofoam extruded polystyrene ua npuas yog cim 1B-AXPS-EN13164-Tl-C5 (10 / y) 250DS (TH) -TR100. Hauv daim ntawv encrypted, muaj cov ntaub ntawv hais txog tuab, ntom, qhov hnyav thiab lwm yam yam ntxwv tseem ceeb.

Vim tias muaj kev tiv thaiv ntau ntxiv rau lub zog txav, cov khoom siv hauv qhov xwm txheej no:

  • Rau rwb thaiv tsev ntawm cov pob zeb ua ke saum toj no hauv qab daus siab, uas nws tau teeb tsa rau hauv pem teb slabs los ntawm sab nraud. Hauv cov av noo siab, txheej yuav ua dej ntxiv.
  • Rau kev tiv thaiv ntawm cov pob zeb ua vaj tse nyob rau sab saum toj ntawm cov subfloors uas twb muaj lawm, ua raws li los ntawm screed txhaws. Hauv qhov no, qhov siab ntawm chav yuav tsawg dua 15 cm.
  • Rau thermal rwb thaiv tsev ntawm subgrade. Cov khoom siv tau tso ncaj qha rau ntawm cov xuab zeb thiab lub txaj txaj, thiab tom qab ntawd nchuav nrog pob zeb ua ke.
  • Los tsim ib txheej insulating hauv cov av sov.
  • Granular polystyrene ua npuas ncauj tuaj yeem ntxiv rau cov cement slurry. Hauv qhov no, lub screed tau txais cov khoom cua sov.

Qhov zoo thiab qhov tsis zoo ntawm rwb thaiv tsev hauv pem teb nrog nthuav polystyrene

Extruded polystyrene ua npuas ncauj
Extruded polystyrene ua npuas ncauj

Cov khoom tau dhau los ua neeg nyiam vim nws qhov tshwj xeeb zoo uas txawv nws los ntawm lwm hom ntawm cov ntawv ua cua sov:

  • Rwb thaiv tsev tsis nqus dej hauv av. Nyob rau hauv cov dej noo, nws tsis hloov nws qhov loj me thiab tsis deform.
  • Qhov ntom ntom siab tso cai rau cov vaj huam sib luag kom tiv taus qhov hnyav.
  • Nws mus tau zoo nrog cov hlua thiab cov kav dej ntawm "hauv pem teb sov".
  • Cov qauv yog yooj yim los lis. Lawv tuaj yeem txiav tau yooj yim rau ntu me me ntawm ib qho duab geometric.
  • Cov rwb thaiv tsev muaj cov khoom uas tso cai rau siv cov plag tsev ntev. Cov kab mob me me, kab mob thiab cov fungi tsis pib hauv lub qhov cub. Cov khoom yog tiv taus lom thiab tshuaj lom neeg, tsis rot.
  • Expanded polystyrene soundproof interfloor qab nthab.
  • Cov khoom siv yog ib puag ncig zoo. Nws tsis ua rau tawv nqaij thaum ua haujlwm txhim kho, tsis tsim hmoov av thiab tsis tso cov ntxhiab tsw.

Cov khoom tsis zoo suav nrog kev hloov pauv ntawm cov ntawv ntawm qhov kub ntawm + 80 + 90 degrees thiab muaj peev xwm tua hluav taws. Yog li ntawd, nws tsis siv nyob rau thaj chaw muaj kev phom sij. Cov khoom raug nqi ntau dua li lwm qhov piv txwv.

Tshuab ntawm rwb thaiv tsev hauv pem teb nrog extruded polystyrene ua npuas ncauj

Rwb thaiv tsev hauv pem teb nrog nthuav polystyrene tau nqa tawm hauv ob theem. Ua ntej, muaj txheej txheem ntawm kev npaj rau kev ua haujlwm tseem ceeb, lub sijhawm uas lub hauv paus raug ntxuav thiab ua kom zoo. Hauv theem no, cov khoom siv tau raug yuav - kua nplaum thiab lwm yam khoom ntawm txheej insulating. Tom ntej no, lub ntsuas cua sov tso rau hauv raws li cov txheej txheem xaiv teeb tsa, uas nyob ntawm seb hom av, kev tsim "ncuav qab zib" thiab qhov xav tau rau nws. Cia peb ua tibzoo saib ntawm txhua theem ntawm kev teeb tsa ua haujlwm.

Nta ntawm kev xaiv ntawm nthuav polystyrene

Nthuav polystyrene rau rwb thaiv tsev hauv pem teb
Nthuav polystyrene rau rwb thaiv tsev hauv pem teb

Ua ntej yuav khoom, nws yog qhov tsim nyog los txiav txim siab cov yam ntxwv tseem ceeb ntawm polystyrene ua npuas dej rau rwb thaiv tsev hauv txhua qhov xwm txheej. Cov no suav nrog qhov ntom ntom thiab tuab ntawm cov khoom.

Nta ntawm kev xaiv nthuav polystyrene, nyob ntawm nws qhov ntom ntom:

  1. Cov khoom lag luam nrog qhov ceev txog li 15 kg / m3 siv rau cua sov rwb thaiv tsev ntawm cov hauv paus tsis muaj thauj khoom;
  2. 15 txog 20 kg / m3 - rau cov plag tsev uas muaj cov load qis;
  3. 25 txog 35 kg / m23 - rau kev teeb tsa tus kheej uas tuaj yeem tiv taus qhov hnyav;
  4. Los ntawm 36 txog 50 kg / m3 - tau siv rau rwb thaiv tsev tshwj xeeb tshaj yog thauj khoom decks.

Nws tau pom zoo kom suav qhov tuab ntawm nthuav polystyrene ua npuas ncauj rau rwb thaiv tsev hauv qab raws li SNiPs lossis yooj yim, raws li peb cov lus pom zoo:

  1. Cov tuab ntawm cov rwb thaiv tsev rau tso saum toj hauv qab daus lossis hauv av: yam tsawg 10 cm - rau thaj tsam yav qab teb, yam tsawg 15 cm - rau sab qaum teb.
  2. Rau cov cua sov rwb thaiv tsev ntawm cov plag tsev hauv tsev, cov ntawv yuav tsum yog: rau thaj tsam yav qab teb - yam tsawg 10 cm, rau thaj tsam ntawm txoj kab nruab nrab - tsawg kawg 15 cm, rau sab qaum teb - yam tsawg 20 cm.

Tsuas yog cov rwb thaiv tsev zoo muaj peev xwm tuaj yeem ntseeg tau insulating lub warp. Hauv tsev, nws nyuaj rau txheeb xyuas nws tus yam ntxwv, tab sis qhov cuav tuaj yeem txiav txim siab los ntawm cov cim qhia tsis ncaj:

  1. Txheeb xyuas qhov kawg ntawm daim ntawv kom zoo zoo. Cov khoom lag luam muaj cov qauv zoo ib yam, tsis muaj cov ntsaws ruaj ruaj. Cov hlwb me me thiab nyuaj rau qhov sib txawv. Yog tias lawv tuaj yeem ua qhov txawv nrog qhov muag liab qab, qhov no yog lub cim ntawm kev ua haujlwm tsis zoo. Cov qhov hws loj nruab nrab yog ib qho tseem ceeb ntawm cov khoom - tsis muaj dej nqus. Thaum tso rau hauv av, cov dej noo yuav dhau los ntawm lawv, thiab thaum tiv thaiv cov ntoo hauv tsev, kab yuav tshwm rau hauv cov pob zeb.
  2. Tua tawm qhov tawg thiab nias hauv qhov chaw no nrog koj tus ntiv tes. Qhov cuav tuaj yeem txheeb xyuas tau los ntawm qhov tawg uas tshwm thaum cov phab ntsa nyias ntawm cov hlwb tawg. Tom qab tso, cov kab nrib pleb tshwm rau hauv cov pob zeb zoo li no, uas ua rau lawv puas tsuaj.
  3. Tsis tas li, qhov cuav tuaj yeem kuaj pom los ntawm tsw ntxhiab. Cov khoom siv zoo muaj cov tshuaj lom uas tsis muaj teeb meem, thiab thaum so koj tuaj yeem hnov tsw ntxhiab ntawm cawv lossis yas.
  4. Nws raug nquahu kom yuav cov khoom hauv khw muag khoom hauv tuam txhab, ntim hauv cov yeeb yaj kiab tiv thaiv. Daim ntawv lo yuav tsum qhia cov chaw tsim khoom thiab nws cov ntaub ntawv, hom khoom, yam ntxwv, cov ntaub ntawv thov, phaj phaj thiab lwm yam ntaub ntawv.

Cov cai rau xaiv cov kua nplaum rau nthuav polystyrene

Ua npuas ncauj hauv thooj voos kheej kheej Penosil iFix Go Montage
Ua npuas ncauj hauv thooj voos kheej kheej Penosil iFix Go Montage

Txhawm rau tsim txheej insulating, koj yuav xav tau cov nplaum tshwj xeeb xws li Kliberit, Knauf, Ceresit ntawm lub hauv paus polyurethane. Lawv muag muag, ntim rau hauv 25 kg hnab. Rau kev ua noj, nws txaus los dilute lawv nrog dej hauv qhov sib piv uas tau qhia hauv cov lus qhia.

Cov neeg siv tsis tau raug qhia kom yuav cov kev daws teeb meem nrog lub sijhawm kho ntev, yog li muaj lub sijhawm los kho txoj haujlwm ntawm daim ntawv.

Cov rwb thaiv tsev tuaj yeem ua ke nrog cov txheej txheem thoob ntiaj teb uas tsis muaj roj av, roj av, formalin, acetone lossis toluene. Lawv rhuav tshem polystyrene ua npuas ncauj.

Cov lus qhia rau cov khoom ib txwm qhia nws qhov kev siv rau 1 m2, tab sis koj yuav tsum yuav nws nrog cov npoo ntawm qhov tsis sib xws.

Tsis ntev los no, Penosil iFix Go Montage ua npuas ncauj hauv thooj voos kheej kheej tau tshwm sim ntawm kev ua lag luam, tsim los txhim kho cov khoom lag luam rau txhua qhov chaw. Nws yog siv nrog rab phom mounting.

Ua kom sov ntawm cov plag tsev nrog nthuav polystyrene hauv av

Rwb thaiv tsev kub nrog extruded polystyrene ua npuas ncauj
Rwb thaiv tsev kub nrog extruded polystyrene ua npuas ncauj

Rau cov lawj uas tau teeb tsa ntawm subgrade, rwb thaiv tsev cua sov nrog extruded polystyrene ua npuas dej yog qhov tseem ceeb.

Cov thev naus laus zis ntawm rwb thaiv tsev hauv pem teb nrog polystyrene ua npuas dej hauv av zoo li qhov no:

  • Qib thaj tsam hauv qab lub hauv paus. Yog tias cov av xoob, cog nws thiab cia nws zaum ib hlis. Thaum lub sijhawm no, cov av yuav ntsws.
  • Sau rau hauv txheej txheej ntxhib gravel 10 cm tuab thiab compact. Nyob rau sab saum toj, ua ib txheej ntawm cov xuab zeb ntawm tib tuab thiab tseem ua kom sib zog.
  • Muab zaj duab xis tiv thaiv dej tso rau ntawm lub hauv ncoo, ua cov pob qij txha nrog kev sib tshooj ntawm 10 cm, thiab tom qab ntawd muab nws lo nrog daim kab xev.
  • Muab cov ntawv rwb thaiv tsev tso rau hauv tus qauv ntsuas kab ntawv. Cov ntsiab lus yuav tsum sib haum ua ke. Kaw lub qhov nrog lwm cov khoom siv.
  • Npog cov vaj huam sib luag nrog txheej txheej ntawm vapor barrier nrog me ntsis sib tshooj ntawm phab ntsa. Yog li, lawv yuav muaj kev tiv thaiv zoo tshaj plaws los ntawm noo noo los ntawm hauv qab thiab los ntawm saum toj.
  • Muab cov hlau ntxig rau ntawm daim nyias nyias.
  • Ncuav lub hauv paus nrog cov pob zeb ua los yog cov cement mortar ntau dua 60 mm tuab thiab qib nws kab rov tav. Qhov saum npoo yuav tsum ua tau raws li qhov xav tau ntawm cov plag tsev.

Ua kom sov ntawm cov plag tsev hauv av thaum muaj cov lags tau pom hauv cov tsev ntiav uas twb tau ua haujlwm ntev lawm. Hauv qhov no, kev siv cov rwb thaiv tsev extruded yog qhov ncaj ncees yog qhov ua tau zoo vapor thaiv ntawm lub hauv paus yog xav tau.

Txoj haujlwm yog ua raws li hauv qab no:

  1. Tshem tawm cov ntoo ntawm cov plag qub.
  2. Compact cov av.
  3. Tshaj tawm ib txheej ntawm nthuav av nplaum lossis xuab zeb thiab pob zeb hauv ncoo rau nws thiab tseem ua kom nruj.
  4. Muab daim ntawv uas tsis muaj dej tso rau ntawm lub hauv ncoo. Cov pob qij txha yuav tsum tau ua nrog kev sib tshooj ntawm 10-15 cm. Tom qab tso, lo lawv nrog cov kab xev sib dhos. Nws tsuas yog tsim nyog los tiv thaiv qhov khoob ntawm cov lags, nrog kev nkag mus rau lawv.
  5. Sau cov cell nrog ib daim ntawv rwb thaiv tsev, txiav lawv raws nraim qhov chaw. Zap qhov khoob uas seem.
  6. Ntsia cov laug cam ua tiav rau cov cav los ntawm saum toj no.

Txhawm rau txiav sai sai ua npuas dej polystyrene, koj yuav xav tau cov cuab yeej hauv qab no:

  • Ntse clerical lossis wallpaper riam. Nws nyob hauv txhua lub tsev.
  • Ib qho hluav taws xob jigsaw yuav txiav cov ntawv tuab tuab sai, tab sis cov npoo ntawm kev txiav tsis sib luag.
  • Ib rab riam hauv chav ua noj kom sov yuav txiav cov khoom yam tsis tawg.
  • Nichrome hlau, rhaub kom reddening, yuav txiav ib txoj haujlwm ntawm txhua yam.

Rwb thaiv tsev hauv pem teb nrog nthuav polystyrene ntawm lub hauv paus pob zeb

Rwb thaiv tsev kub ntawm qhob pem teb nrog nthuav polystyrene
Rwb thaiv tsev kub ntawm qhob pem teb nrog nthuav polystyrene

Cov ntawv polystyrene extruded tuaj yeem txuas rau lub hauv paus pob zeb los ntawm sab nraud (piv txwv li los ntawm lub cellar). Qhov kev xaiv no nws muaj qhov zoo, txij li tso cai rau koj ua kom sov tsis yog tsuas yog hauv pem teb slabs, tab sis kuj ntawm cov phab ntsa hauv kev sib cuag nrog nws. Tsis tas li, qhov siab ntawm lub qab nthab hauv chav tsis txo.

Kev ua haujlwm ntawm kev rwb thaiv tsev hauv pem teb los ntawm sab hauv qab daus yog ua raws li hauv qab no:

  • Ntxuav cov pob zeb ua ke thiab yaug nrog dej.
  • Yog tias muaj kab nrib pleb, qhov nqes los yog lwm yam tsis xws luag, muab lawv ntim nrog cov cement mortar lossis nthuav cov kua nplaum polystyrene. Qhib lub ledges.
  • Thawj hauv pem teb.
  • Thov ib txheej 12 cm ntawm cov kua nplaum rau ntawm daim ntawv thiab ua kom du nrog lub lauj kaub tais diav. Muab lub rooj tsavxwm tso rau saum npoo thiab nias qis kom haum.
  • Koom nrog cov vaj huam sib luag hauv qab no yam tsis muaj qhov khoob. Yog tias qhov khoob tshwm, sau lawv nrog cov kua nplaum rau ntawm cov khoom. Tsis txhob siv polyurethane ua npuas ncauj los kaw qhov khoob vim nws ua tiav cov dej tsis ua tiav.
  • Rwb thaiv phab ntsa hauv qab ntawm qhov deb ntawm 60 cm los ntawm hauv pem teb slab nrog cov khoom siv tib yam. Ua li no, cov cua sov los ntawm cov plag tsev thiab cov faib rau hauv av raug tshem tawm.
  • Npog cov rwb thaiv tsev nrog cov iav fiberglass siv ntxaij thiab kua nplaum nrog plaster. Rau kev ntseeg tau, txhim kho nws nrog dowels nrog lub taub hau dav nrog cov yas yas. Muab cov fasteners txhua 40 cm.

Rwb thaiv tsev ntawm cov pob zeb los ntawm sab hauv ntawm chav yog siv los tiv thaiv cov plag tsev hauv cov tsev siab nrog nthuav cov phaj polystyrene nthuav dav, suav nrog cov hauv qab daus.

Kev ua haujlwm yog ua raws cov hauv qab no:

  1. Npaj lub hauv paus zoo ib yam li hauv rooj plaub dhau los.
  2. Siv qib hydrostatic, txheeb xyuas qhov sib txawv ntawm cov nplais los ntawm lub qab ntug. Yog tias qhov sib txawv ntau dua 0.5 cm ntawm qhov ntev tshaj plaws ntawm chav tsev, qib nws nrog kev sib xyaw nws tus kheej.
  3. Tom qab cov tshuaj khib tau khov, ua kom tiav txheej txheej 3-5 cm tuab, uas yuav tshem tawm qhov tsis xws luag. Ua haujlwm ntxiv rau rwb thaiv tsev hauv pem teb nrog extruded polystyrene ua npuas ncauj tuaj yeem ua tiav tom qab qhov saum npoo tau qhuav tag.
  4. Kuaj daim kab xev damper rau ntawm phab ntsa ib puag ncig ntawm chav tsev, saum toj ntawm lub screed, uas yuav tsum tau them nyiaj rau kev nthuav dav cua sov.
  5. Txhawm rau tiv thaiv kom tsis txhob ya raws los ntawm lub ntsej muag, npog nws nruj nrog yas qhwv nrog qhov tawm mus rau ntawm phab ntsa. Koj tseem tuaj yeem siv daim kab xev tiv thaiv dej. Hauv cov plag tsev nruab nrab, cov yeeb yaj kiab tuaj yeem tso tseg. Yog tias hauv av tsis ntab, cov ntawv rwb thaiv tsev tau muab tso rau ntawm cov kua nplaum polyurethane ncaj qha rau ntawm cov pob zeb.
  6. Muab cov pob zeb tso rau ntawm cov ntawv ci ze rau ntawm phab ntsa. Muab cov ntawv tso rau hauv tus qauv ntsuas kab ntawv, tsis muaj qhov khoob ntawm lawv raug tso cai. Yog tias tsim nyog, kaw qhov khoob nrog cov khoom seem.
  7. Npog cov khoom lag luam nrog cov pa ua pa thaiv cov ntawv ci sib tshooj ntawm phab ntsa thiab daim uas nyob ib sab. Seal membrane sib txuas.
  8. Teem lub reinforcing mesh rau saum thiab lub tsho tiv no nrog ib txheej nyias ntawm screed kom ruaj ntseg.
  9. Sau "ncuav qab zib" nrog lub ntsej muag 3-5 cm tuab.
  10. Thaum nws tau kho lawm, cov ntaub npog hauv pem teb tuaj yeem tso tau.

Nyob rau hauv cov ntaub ntawv ntawm cov cua sov rwb thaiv tsev ntawm cov nthab thiab nthab hauv tsev, kev tsim kho ntawm "ncuav qab zib" yog qhov sib txawv me ntsis ntawm qhov uas siv hauv nruab nrab hauv plag tsev. Hauv pem teb, tsis yog dej tsis tiv thaiv, tab sis muaj zaj duab xis vapor permeable. Qhov no yog vim qhov tseeb tias cov nthab hauv tsev ua haujlwm raws li lub qab nthab ntawm sab saud, uas yuav tsum "ua pa".

Muab rwb thaiv tsev rau ntawm nws thiab npog nrog tib lub thaiv pa. Cov ntawv tuaj yeem raug teeb tsa hauv ob peb txheej nrog offset ntsug pob qij txha. Lawv tuaj yeem ua ke nrog cov kev daws teeb meem tshwj xeeb. Tom qab ntawd koj tuaj yeem sau cov screed lossis sib dhos lub crate thiab ntsia cov laug cam ntawm cov hauv pem teb tiav.

Rwb thaiv tsev kub hauv pem teb nrog nthuav polystyrene nrog lags

Ua kom sov nrog nthuav polystyrene ntawm hauv pem teb nrog cav
Ua kom sov nrog nthuav polystyrene ntawm hauv pem teb nrog cav

Kev rwb thaiv tsev cua sov ntawm cov plag tsev ntawm cov qauv zoo sib xws tau ua hauv cov kab hauv qab no:

  • Ntxuav thiab theem cov hauv paus pob zeb raws li tau piav qhia yav dhau los.
  • Tso zaj duab xis tiv thaiv dej rau hauv pem teb, nce phab ntsa. Muab nws cov khoom tawg tso rau saum ib sab nrog qhov sib tshooj ntawm 10 cm. Kaw cov pob qij txha nrog daim kab xev sib dhos.
  • Nruab qhov lags. Qhov dav ntawm cov cell yuav tsum sib haum rau qhov loj ntawm daim ntawv rwb thaiv tsev. Xaiv qhov siab ntawm slats kom nws ntau dua li cov tuab ntawm rwb thaiv tsev. Kho cov lags mus rau lub hauv paus nrog rauj-hauv dowels.
  • Muab cov phaj polystyrene nthuav dav rau hauv cov cell.
  • Muab ib qho thaiv kab thaiv rau saum cov kab teeb.
  • Tom ntej no, kho qhov ua tiav ntawm cov laug cam lossis OSB cov laug cam. Tawm qhov sib txawv me me ntawm lawv rau kev nthuav dav cua sov.

Txhawm rau tiv thaiv cov pob zeb hauv av nrog cov zom ua kom tawg, koj yuav xav tau nthuav cov polystyrene granules, uas tuaj yeem pom hauv khw muag khoom kho vajtse. Txoj kev daws teeb meem tau npaj hauv cov kab hauv qab no: hliv dej me ntsis rau hauv cov khoom sib xyaw ua ke thiab ntxiv cov cement qhuav, sib tov kom txog thaum sib xws sib xws, ntxiv cov granules hauv qhov sib piv ntawm 1: 3, 1: 4 lossis nrog lwm qhov txiaj ntsig. Qhov loj dua cov insulator, cov cua sov zoo dua yuav khaws cia, tab sis lub zog ntawm txheej yuav poob qis. Nws tuaj yeem tawg thaum lub sijhawm ua haujlwm. Sau qhov sib tshooj nrog cov tshuaj no. Yuav ua li cas insulate hauv av nrog nthuav polystyrene - saib cov vis dis aus:

Txoj hauv kev tiv thaiv cua sov ntawm lub hauv paus nrog cov ntawv no yog qhov ua tau zoo thiab yooj yim uas nws tsim nyog tau txais kev txiav txim siab qhov zoo tshaj plaws ntawm txhua qhov kev xaiv tau. Qhov tseem ceeb thaum rwb thaiv tsev hauv pem teb nrog polystyrene ua npuas nrog koj tus kheej txhais tes yog ua raws txoj haujlwm thev naus laus zis raws nraim, vim qhov tsis saib xyuas tuaj yeem yooj yim tsis lees paub qhov uas tau ua tiav.

Pom zoo: