Mafirimu edenga

denga membrane

Iyo vapor permeability yedenga remba inoedzwa nenzira dzakasiyana pasi pemamwe mamiriro emurabhoritari akadai setembiricha, kudzvanywa uye hunyoro hwemhepo. Zvakaoma kuwana mamiriro akafanana muzvidzidzo zvakadaro, saka hunhu hwakapihwa nenzira iyi hauna kuvimbika zvachose. Kufemerwa kwemhute kunowanzo kupihwa muzvikamu zveg/m2/zuva, zvinoreva huwandu hwemhute yemvura mumagiramu inozopfuura nepakati pemamita akaenzana efoil pazuva. Chiratidzo chakanyatsojeka chekuputika kwemhute yefoil ndiyo dhizaini yekudzivirira coefficient Sd, inoratidzwa mumamita (inomiririra hupamhi hwakaenzana nekupararira kwegomba remhepo). Kana Sd = 0,02 m, izvi zvinoreva kuti zvinhu zvinogadzira kuramba kune mhute yemvura yakagadzirwa ne 2 cm gobvu remhepo. Mupfuti permeability? iyi ndiyo muwandu wemhute wemvura iyo iyo firimu yedenga (fleece, membrane) inokwanisa kupfuura pasi pemamwe mamiriro. Ko iyi mhute inotakura mhute yakakwira neimwe nzira (inoregeredza imwe)? saka zvakakosha zvikuru kuisa foil padenga nerutivi rworudyi, kazhinji nekunyora kumusoro, kuitira kuti mhute yemvura ipinde kubva mukati kusvika kunze. Firimu redenga rinodaidzwawo senge underlayment firimu nekuti rinogona kutsiva yechinyakare tar bepa rakavharwa machira. Izvo zvakagadzirirwa kuchengetedza denga reimba uye insulating layer kubva pakunaya uye chando chinowira pasi pechifukidziro. Zvinofungidzirwawo kuti kupisa hakuzoputirwi kubva kune thermal insulation layer, saka inofanirawo kudzivirira kubva kumhepo. Uye pakupedzisira? ndiko kubvisa mwando wakawandisa unogona kupinda pazvikamu zvedenga kubva mukati memba (munyaya iyi, unofanira kugara uchingofunga kuti mhute yemvura ichapinda muzvikamu izvi nekuda kwekudonha kwakasiyana-siyana). Basa rekupedzisira refoiri? kukwana kwayo? inoratidzika seyo inonyanya kukosha pakusarudza rudzi rwefirimu yedenga kubva kune zvakasiyana-siyana zvevagadziri. Iyi firimu inonzi yakanyanya mhute inopindika paSd <0,04 m (yakaenzana neinopfuura 1000 g/m2/24h pa23°C uye 85% hunyoro hunoenderana). Iyo diki iyo Sd coefficient, yakakura iyo mhute permeability yefirimu. Zvinoenderana nevapor permeability, mapoka emafirimu ane yakaderera, yepakati uye yakakwirira mhute permeability anosiyaniswa. isingasviki 100 g/m2/24 h? mhute yakaderera inopindika, inosvika 1000 g/m2/24h - yepakati mhute inopindika; iyo Sd coefficient ndeye 2-4 m; kana uchivashandisa, zvinodikanwa kuchengetedza gap rekufefetera re 3-4 cm pamusoro pekuvharira kudzivirira hunyoro kupinda. Mafirimu ane high vapor permeability anogona kuiswa zvakananga pamatanda uye anosangana neiyo insulating layer. Huremu uye kuramba kwedenga remba kune ultraviolet mwaranzi kunokanganisa kusimba kwechinhu. Iyo yakakora iyo foil, ndiyo inonyanya kurwisa kukuvadzwa kwemuchina uye kukuvadza kwemwaranzi yezuva (kusanganisira ultraviolet? UV). Mafirimu anonyanya kushandiswa i100, 115 g/m2 nekuda kwechiyero chakakwana chehuremu kune simba remuchina uye mhute permeability. Mafirimu ane high vapor permeability anoshingirira nemwaranzi yeUV kwemwedzi 3-5 (ane kuderera kwemhute kwemavhiki 3-4). Kuwedzera kwakadai kunowedzera kunowanikwa nekuda kwe stabilizers - additives kune zvinyorwa. Iwo anowedzerwa kuchengetedza mafirimu kubva mumwaranzi inopinda nepakati nepakati (kana maburi) mukuputira panguva yekushanda. Zviwedzerwa zvinoderedza zvinokuvadza zvemagetsi ezuva zvinofanira kupa makore akawanda ekushandiswa kwezvinhu, uye kwete kumanikidzira makondirakiti kubata firimu redenga sedenga renguva kwemwedzi yakati wandei. Chiyero chekudzivirira kwemvura kwefoiri ndiko kupikisa kwezvinhu kumanikidziro emvura. Inofanira kunge iine 1500 mm H20 (maererano neGerman standard DIN 20811; muPoland, kuramba kwemvura hakuyedzwe zvinoenderana nechero chiyero) uye 4500 mm H20 (maererano nezvinonzi. kinetic nzira). Ma pre-cover transparency akagadzirwa nepurasitiki? yakagadzirwa ne polyethylene (yakaoma uye yakapfava), polypropylene, polyester uye polyurethane, saka ivo vane simba uye vanopikisa deformation. Mafirimu akasimbiswa-matatu-matatu anowanzoshandiswa, ane simbi yekusimbisa mesh yakagadzirwa ne polyethylene yakaoma, polypropylene kana fiberglass pakati pe polyethylene. Kutenda kune iyi dhizaini, ivo havasi pasi pe deformation panguva yekushanda uye nekuda kwekuchembera kwezvinhu. Mafirimu ane anti-condensation layer ane viscose-cellulose fiber pakati pezvikamu zviviri zve polyethylene, iyo inotora mhute yemvura yakawandisa uye inoibudisa zvishoma nezvishoma. Iwo ekupedzisira mafirimu ane yakaderera mhute permeability. Denga membranes (zvisiri-yakarukwa zvinhu) zvakare ine layered chimiro. Iyo huru layer ndeye isiri-yakarukwa polypropylene yakavharwa ne polyethylene kana microporous polypropylene membrane, dzimwe nguva inosimbiswa ne polyethylene mesh.