大禹國小學生教室防水防漏改善工程

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發表廠商: 
羅工防水工程公司

這個案例是本公司所承作的一個防水防漏工程,主要問題在於屋頂防水層自然劣化,造成室內多處天花板漏水問題。以下為該案例分析,包含問題分析、改善方法規劃、以及施工步驟。

 

滲水問題分析:
1.屋頂版及女兒牆水漬顏色呈現棕色,表示混凝土內長期水份滯留,造成室內有多處漏水。
2.傳統的防水塗料長期經紫外線照射,造成起泡劣化,塗膜表面漸漸受蝕,造成光澤度失去,出現白堊(Chalking)現象導致變黃,因而脫落失去原有的作用。

 

 

問題改善說明:
1.需施作防水的位置在屋頂,且教室四周無較高建築物遮蔽,受紫外線日曬時間極長,故
設計選用MAS 半永久性複合防水材施作。
2.為了保護防水材,延長防水功能壽命,且具有良好隔熱效果,更可於夏季節省能源,因
此設計可長期使用的環保隔熱PC 板,符合政府「綠建築」推廣計畫。
3.女兒牆防水採用WT-300 防水塗料,經塗佈、乾燥後,將形成一整體性,無接縫、耐候性
佳,兼具隔熱效果的防水層,具有良好的附著力與延長性,不因地層的龜裂而漏水。

 

女兒牆塗抹防水塗料,抗拉不織布同時施工
 

 

防水氈搭接部位封口處理

 

 

使用填縫材填補天花板滲水裂縫

 

 

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