[請問] 鐵皮屋頂生鏽了 只能換掉了嗎?
小魯家剛買的老透天在整修,本來頂樓只打算換水槽而已。結果今天師傅開了維修孔上去看。發現全部的屋頂烤漆都鏽蝕了
http://i.imgur.com/PdOdJjE.jpg


請問這樣只有換掉一途嗎?還是有其他省一點的辦法?
另外目前老闆報價全部換掉 鋁鎂合金四合一隔熱的價格是43000 大概13坪左右 這樣合理嗎?
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