1、濟南防水公司http://www.tianyujian.com/談到有的把工程造價一壓再壓的情況，造成資金不充足，所以采用劣質的材料來減低成本，造成工程的整體質量下降。
Jinan waterproofing company talked about some of the construction cost of a pressure situation and then pressure, causing the funds are not sufficient, so the use of inferior materials to reduce costs, resulting in a decline in the overall quality of the project.
2、濟南防水公司http://www.tianyujian.com/介紹有的層層轉包，工程造價層層剝皮，過多的專包，無疑增加了成本，因為每個轉包商都要獲取一定的利潤，而到了最后的直接承包并進行具體施工的服務商手上便會同樣出現上一種情況。
Jinan waterproofing company introduced some layers of subcontractors, project cost layers of peeling, excessive designed package, will increase the cost, because each subcontractor must obtain a certain profit, but to the last direct contracting and concrete construction the service provider will also appear on the hands of a situation.
3、有的施工單位采用低劣材料、減薄防水層、改變設計材料等;有的不重視基層質量。只要反腐倡廉，抓好設計、材料、施工和保養等環節，防水工程質量是不能夠保證的。
Some construction units using inferior materials, thinning waterproof layer, changing the design materials; some do not pay attention to grassroots quality. As long as anti-corruption, good job design, materials, construction and maintenance and other sectors, waterproof construction quality is not guaranteed.