I-sprayed polyurethane foam (SPF) iyinto yokuvikela ehlukahlukene esekelwe ekwakhekeni kwamakhemikhali, futhi ngenxa yokuthi into efuthwe nge-foam ayiguquguquki ngokuhamba kwesikhathi, ivame ukusetshenziswa ohlelweni lokuvikela ezindlini. Iqukethe izingxenye ezimbili eziyinhloko: ama-isocyanates kanye nengxube yezithasiselo, kufaka phakathi ama-polyol kanyeama-catalyst, ezixutshwa endaweni ukuze zakhe ungqimba oluqinile lokuvikela. Kunezinhlobo ezimbili eziyinhloko zefoam yokufutha: ifoam yamaseli avulekile kanye nefoam yamaseli avaliwe, ngayinye inezici ezahlukene kanye nokusetshenziswa.
Igwebu Lokufutha Elivulekile
Ifomu yokufutha enembobo evulekile inezindleko eziphansi kanye nokwandiswa okukhulu, futhi ingakhethwa lapho kugcwalisa izikhala ezinkulu. Ngenxa yokuthi inkuluukuguquguquka, ingasuswa kalula futhi ingagcwaliswa ngokufakwa kokuvikela amakhona okunzima ukuwafinyelela. I-foam yamaseli avulekile inesakhiwo samaseli esifana nama-bubble amancane anezimbobo ezivumela umoya ukuthi ujikeleze. Nakuba inikeza ukuqina komoya, ayinikezi isithiyo somswakama ngoba ukungena kwawo kuvumela amanzi ukuthi adlule. Inenani elingu-R (isilinganiso sekhono layo lokuvikela) elingaba ngu-3.5 kuya ku-3.8 nge-intshi, okwenza ifaneleke ukusetshenziswa lapho kudingeka khona ukugeleza komoya kodwa ukumelana nomswakama akubalulekile. Ivame ukusetshenziswa ezindongeni zangaphakathi, kuma-attic, nasezindaweni ezidinga ukuvikelwa komsindo, njengoba ukwakhiwa kwayo kwembobo evulekile nakho kunikeza ukunciphisa umsindo okuhle kakhulu.
Igwebu Lokufutha Elivaliwe
Imigodi ehlanganiswe ndawonye ukuze yakhe isakhiwo esiminyene ibizwa ngokuthi ama-closed-cell foam. I-closed-cell spray foam iminyene futhi iqinile, idala isithiyo esinamandla ngokumelene nomoya nomswakama. Imigodi yayo ehlanganiswe kahle ivimbela umoya nomswakama ukuthi ungangeni, okwenza kube isithiyo esisebenzayo somswakama. Ikhula ngesivinini esiphansi kune-open-cell foam, kodwa ivikela kangcono, ngenani lika-R elingaba ngu-6.0 nge-intshi. Uma inani lika-R liphakeme, i-closed-cell foam imelana nokugeleza kokushisa, okwenza ifaneleke kakhulu ekusetshenzisweni kwangaphandle okudinga amanani aphezulu okuvikela kanye nokuvikelwa komswakama, njengophahla, izisekelo, kanye nezindonga. Naphezu kwezindleko eziphakeme, i-closed-cell foam ivame ukuthandwa ezindaweni lapho isikhala silinganiselwe khona kodwa kudingeka i-insulation ephezulu.
Ngamafuphi, ama-spray foam avulekile kanye nama-closed-cell spray ayizivikelo ezisebenzayo kodwa ahlukile ngezakhiwo zawo kanye nokusetshenziswa kwawo. I-Open-cell foam ishibhile, iyanda kakhulu, futhi ivumela ukugeleza komoya, kuyilapho i-closed-cell foam ilukhuni, isebenza njengesivikelo somswakama, futhi inikeza inani eliphakeme le-R. Ukukhetha phakathi kwalokhu okubili kuncike ezidingweni ezithile zephrojekthi, kufaka phakathi ukuvikelwa komswakama, ukusebenza kahle kokushisa, kanye nesabelomali.
Isikhathi sokuthunyelwe: Septhemba-24-2024