確定（屋頂）防水堵漏方案：
determine the waterproof plugging scheme:
堵漏前必須進行現場調查，摸清現場施工情況，分析滲漏水的緣故原由，查清漏水部位、裂縫、裂紋或穿孔的寬度、長度、深度和貫穿情況，并了解雨天和晴天的漏水情況，測量漏水的流量與流速等，通過充分調查，精確擬定堵漏方案，做好各項預備工作。
Must conduct on-site investigation before plugging, to find out the site construction conditions, analysis of the causes of seepage Water Leakage, identify Water Leakage parts, crack, crack or perforation of the width, length, depth and penetration, and to understand the situation Water Leakage sunny and rainy days, the Water Leakage measurement of flow and velocity and so on, through the full investigation, plugging scheme is correct to do the preparatory work.
材料性能特點：
2 material properties:
油性聚氨酯注漿材料與水即反應，因為水參與了反應，漿液不會被水稀釋沖走，這是其他灌漿材料所不具備的好處，漿液在壓力作用下，灌入混凝土縫隙或孔洞，同時向縫隙四周滲透（百度排名優化），繼承滲入混凝土縫隙，最終形成網狀結構，成為密度小，含水的彈性體，有優秀的適應變型能力（河北人事考試中心），止水性好。
Oily polyurethane grouting materials and water reaction, because the water in the reaction, the slurry can not be diluted with water washed away, this is the advantage that other filling materials do not possess the slurry under pressure, pouring concrete cracks or holes, at the same time to penetrate the gap around, continue to penetrate into the concrete cracks, and ultimately the formation of network structure, a density a small, elastic body water, has a good ability to adapt to change, good waterproof.
灌漿孔的設計和布孔：
3 design and hole filling:
灌漿孔的布孔有騎縫和斜孔兩種情勢，根據現實情況和必要加以選擇，需要時兩者并用。
The grouting hole hole perforation and inclined hole two forms to choose according to the actual situation and needs, and both when necessary.
（1）灌漿孔的設計：灌漿孔的位置，應使孔和漏水裂縫閑暇相交，并選在漏水量最大處。
(1) the design of the grouting hole: the location of the grouting hole, should make the hole and the gap between the water leakage cracks, and selected in the largest amount of water leakage.
（2）布孔原則：注漿孔眼的位置和數量，需根據不同漏水情況進行合理安排，以導出漏水為目的，在集中漏水處布孔，裂縫大、水流量大則孔距大（江蘇人事考試中心），縫隙小則孔距小。
(2) hole principle: the position and number of grouting holes, need reasonable arrangement according to different Water Leakage, Water Leakage to export for the purpose of the focus at Water Leakage cloth hole, crack, water flow, hole distance, small hole distance and small gap.
