Lop nha bang ngoi mau
Ngoi mau la loai ngoi xi mang cat duoc san xuat theo cong nghe ep moi, da loai bo nhung khoang rong, han che do xop nen nhe va dep hon. Ngoi duoc phu mot lop mau bang cach tron truc tiep bot mau vao nguyen lieu hoac phun son len be mat vien ngoi. Cong nghe san xuat ngoi mau moi chi xuat hien tai Viet Nam chung 5-6 nam tro lai day. San pham chu yeu san xuat theo cong nghe cua Nhat Ban, Duc, Italy... Mot vien ngoi co kich thuoc trung binh 330 x 400 x 15 (mm), tuong duong 10 vien/m2, moi vien nang tu 4 den 4,2 kg va trong luong mai tu 40 den 42 kg/m2, nhe hon ngoi truyen thong khoang 20%. Ngoai ra, ngoi mau co cuong do uon cao hon, co kha nang hut am, chong nong, chong tham va han che reu moc rat tot. Cac go chan nuoc theo chieu doc va chieu ngang cua vien ngoi co the de ngan hien tuong nuoc tran qua khe ngoi khi troi mua to va gio lon. Ngoai ra, do kich thuoc vien ngoi lon, chi phi cho he thong gian do tren mai co the giam duoc mot nua.
Be mat ngoi co hai loai, loai tron, tao be mat ngoi bong dep va loai co "vay san" co tac dung khuc xa anh sang nham tranh hap thu nhiet qua ngoi de chong nong va chong tron truot khi thi cong. Mau sac pho bien nhat la do va xanh tim. Ngoai ra, san pham con duoc biet den voi cac gam mau nhu do nau, nau, xanh tham, xanh la cay, xanh reu, ghi, den... Nguoi su dung co the son lai mau moi khi can thay doi. Khi lap dat ngoi mau tren mai co ket cau bang go hoac sat, do doc nen lon hon 30%, chieu dai mai ngoi cung khong nen qua 10 m (tinh tu dinh xuong). Neu mai co ket cau bang be tong thi do doc co the nho hon 30%, nhung phai co lop chong tham. Neu mai co do doc lon hon 60% thi phai bat vit hoac dong dinh toan bo phan ngoi lop. Truong hop cac mai lom phai co mang xoi dan nuoc ben duoi de thoat nuoc hop ly.
Do ben mau cua ngoi mau la mot van de lau nay van duoc ban toi, nhat la trong dieu kien khi hau o nuoc ta. Neu phu mau bang cach cho bot mau truc tiep vao nguyen lieu thi mau sac cua vien ngoi khong bong dep va nhanh bi reu moc. Neu dung son mau de phun len mat ngoai cua vien ngoi thi mau sac bong dep hon nhung do ben mau cua vien ngoi lai kem vi chat tao mang huu co du chat luong cao den may cung kho ben trong dieu kien nong am nhu o nuoc ta. Ngoai ra, san pham nay co gia thanh kha cao, trong do, chi phi son mau chiem gan 40% co cau gia thanh. Vi vay, hien nay, van co ca hai loai ngoi de nguoi dung de dang lua chon. Tren thi truong vat lieu xay dung Viet Nam hien nay, san pham ngoi mau pho bien nhat la Secoin, duoc san xuat hoan toan trong nuoc theo cong nghe Nhat Ban. Ngoai ra, nhung san pham khac cung kha thong dung nhu Dong Tam, JSC, Dong Nai hay cao cap hon mot chut la CPAC (hang nhap khau tu Thai Lan). Gia trung binh cho moi m2 san pham dao dong tu 80.000 den 95.000 dong/m2. (Do thi) |
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Viet Bao
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