Sheathing cov ntaub ntawv rau sheathed hlau feem ntau yog yas, roj hmab, los yog hlau.
Cov lus piav qhia ntxaws muaj raws li hauv qab no:
Cov Khoom Siv Yas: Yas yog cov khoom siv sheathing tshaj plaws rau cov xov hlau sheathed. Cov khoom siv no muaj cov khoom siv hluav taws xob zoo, kev puas tsuaj, thiab corrosion kuj. Nws kuj tiv thaiv cov kab hluav taws xob ultraviolet, noo noo, thiab lwm yam teeb meem hauv ib puag ncig sab nraud, yog li tiv thaiv cov xov hlau sab hauv los ntawm kev puas tsuaj. Tsis tas li ntawd, cov ntaub ntawv yas yog qhov hnyav thiab yooj yim rau kev ua thiab nruab.
Cov Khoom Siv Roj Hmab: Hauv qee cov ntawv thov tshwj xeeb, xws li cov uas xav tau kev hloov pauv siab dua thiab ua kom tsis zoo, roj hmab kuj tseem siv los ua cov khoom siv sheathing rau cov xov hlau sheathed. Roj hmab muaj zoo elasticity thiab dej tsis kam, tiv thaiv cov xov hlau los ntawm lub cev puas tsuaj thiab tshuaj corrosion. Nws feem ntau yog siv rau kev tiv thaiv hlau nyob rau sab nraum zoov lossis ib puag ncig hnyav.
Cov Khoom Siv Hlau: Hauv cov ntawv thov uas xav tau kev tiv thaiv ntau dua, xws li tawg- cov ntaub ntawv pov thawj lossis kev siv tub rog, cov ntaub ntawv hlau kuj tseem siv tau los ua cov ntaub ntawv sheathing. Hlau muab kev tiv thaiv zoo heev tiv thaiv kev cuam tshuam sab nraud, qhov kub thiab txias, thiab lwm yam kev mob hnyav. Txawm li cas los xij, hlau-cov xov hlau sheathed kuj hnyav, kim dua, thiab tuaj yeem cuam tshuam qhov hloov pauv ntawm cov hlau.
