图1 卷材末端收头做法
为防止卷材末端收头和搭接缝边缘剥落而产生渗漏现象，该部位必须用橡胶改性沥青冷胶剂密封处理，使其成为一个完整的防水层。
(12)墙体立面接头
墙体立面接头上层压下层，外层压里层。卷材紧贴阴角不得空鼓、铺贴密实，且留出两层卷材的甩头及搭接、错缝长度。见图2
。
6.2 SBS改性沥青防水卷材屋面施工方案Construction technique for SBS membrane
6.2.1屋顶花园防水施工工艺
基层处理→涂刷基层→铺贴附加层→热熔→防水卷材铺贴（3mm厚SBS改性沥
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青）→热熔封边→防水卷材铺贴（耐根穿刺）→热熔封边→蓄水试验→保护层施工→质量验收.
6.2.2 SBS改性沥青聚酯胎化学阻根耐根穿刺防水卷材施工工艺流程Construction Process Flow
根据编制依据JGJ155-2007《种植屋面工程技术规程》设计应为以下几个部分：找坡层、找平层、普通防水层、SBS化学根阻防水层、排水层、过滤蓄水层、种植土层及种植植被层。剖面图如图2：
In accordance with JGJ155-2007 Technical Specification for Planted Roof (design basis), the design shall include the following parts: slope making course, leveling courses, common waterproofing courses, SBS root-resistant waterproofing courses, drainage blanket, water-bearing layer, planting soil layer and vegetable layers. The sectional drawing is as shown in Figure 2.
6.2.3各分项工程施工工艺Construction Technique for Various Divisional Works （1）找坡层找平层施工：Construction of slope making course and leveling courses: 根据技术规程规定，应设置自流排水系统，适度的坡度有利于多余水分的排泄，使
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土壤的水分不至于聚集过多而影响植物根系的生长。
In accordance with the Technical Specification, a gravity drainage system shall be provided. An appropriate slope will facilitate water drainage and prevent adverse influence on root system growth.
找坡层材料配比应符合设计要求，表面应平整。
The materials for slope-making courses shall be mixed in a ratio specified in the design and the surface shall be flat.
找坡层采用水泥拌合的轻质散状材料时，施工环境温度应在5℃以上，当低于5℃时应采取冬期施工措施。
When light bulk materials mixed with cement are used for slope-making courses, the ambient temperature shall be above 5℃during construction. If the ambient temperature is below 5℃, the scheme of construction in winter shall be adopted.
找平层应坚实平整，无酥松、起砂、麻面的凹凸现象。
The leveling courses shall be firm, flat and free of looseness, sand streak, pitting, sags and crests.
屋面基层与突出屋面结构的交接处，以及基层的转角处均应做成圆弧。内部排水的水落口周围应做凹坑。
The intersecting parts between roof base courses and protruding roof surfaces as well as base course corners shall be in arc shape. The areas around drain gullies for internal drainage shall be concave.
找坡层的材料宜选择轻质材料，推荐使用轻质陶粒混凝土。
Light weight material shall be used for slope-making courses. The use of light weight ceramsite concrete is recommended.
找平层可用1:2.5水泥砂浆铺设厚度为2-2.5cm厚的水泥砂浆找平层，找平层应留设间距不大于6m的分割缝。
Leveling courses shall be constructed with cement mortar (mixed in a 1:2.5 ratio) and be 2 to 2.5cm thick. Separation joints shall be provided at spacing no greater than 6m.
（2）耐根穿刺聚酯胎化学阻根防水材料施工Application of root-resistant waterproofing materials:
采用热熔法满粘施工，防水卷材防水层的基层应干燥、干净。
The waterproofing membranes shall be applied completely using heat fusion method. The base courses on which waterproofing materials will be applied shall be dry and clean.
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防水层施工前，在阴阳角、水落口、突出屋面管道根部、泛水、天沟、檐沟、变形缝等细部构造处，加设防水增强层。
Prior to waterproofing course construction, enhanced waterproofing courses shall be provided in reentrant corners and external corners, drain gullies, pipe roots protruding from roofs, flashing, gutters, deformation joints and other local structures.
当顶板坡度小于15%时，卷材应平行屋脊铺贴；大于15%时，卷材应垂直面脊铺贴。 When the roof slope is less than 15%, waterproofing membranes shall be applied in parallel with ridges. When the roof slope is greater than 15%, waterproofing membranes shall be applied perpendicular to ridges.
铺贴卷材时应平整顺直，不得扭曲，长边搭接不应小于80mm；短边搭接宽度不小于100mm；火焰加热应均匀，卷材表面热熔后应立即滚铺，滚铺时应排除卷材下面的空气，并辊压粘贴牢固；卷材搭接缝应以溢出热熔的改性沥青为度，并均匀顺直。
Waterproofing membranes shall be flattened and straightened without torsion. The length of lap joints shall not be less than 80mm on long sides and not less than 100mm on short sides. Membranes shall be uniformly heated by flame. After membrane surface is molten, immediately lay membrane. Air shall be eliminated from below membrane and membranes shall be firmly pressed. When modified asphalt overflows from lap joints, stop heating. The lap joints shall be even and straight. 6.3 其它屋面工艺流程Process flow
基层处理→涂刷基层→铺贴附加层→热熔→防水卷材铺贴（1）→热熔封边→防水卷材铺贴（2）→热熔封边→蓄水试验→保护层施工→质量验收
Base course treatment → base course brushing →extra ply paving → hot melt → waterproofing membrane paving（1） → edge banding by hot melt → waterproofing membrane paving（2） → edge banding by hot melt→ water retaining test → protective layer construction → quality acceptance check
6.3.1基层处理Base course treatment
(1)找平层应以水泥砂浆抹平压光，与突出屋面结构相连的阴阳角处、基层与立面墙、排水沟、沟脊的边缘相连的转角处应抹成光滑的圆弧形，其半径一般为50mm。
The leveling blankets shall be smeared evenly with cement mortar and polished, and the reentrant corners and external corners connecting with the protruding roof structure as well as the corners connecting the base course with vertical wall, drainage ditch and trench ridge edge shall be smeared into smooth arch, with the radius at 50mm in general.
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(2)找平层上应无明显湿渍，基层干燥，含水率小于9％。
There shall no obvious wet stains on the leveling blankets, and the base course shall be dry, with water content of less than 9%.
(3)、基层表面应坚实具有一定的强度，清洁干净，表面无浮土，砂粒等污物，表面应平整、光滑、无松动，要求抹平压光，对于残留的砂浆块或突起物应以铲倒削平。
The surface of base course shall be solid, with certain strength, clean, and free from surface dust, sand, and other pollutants. The surface shall be leveling and smooth, without any loose phenomenon. The surface shall be smeared smoothly and polished. Residual mortar blocks or protruding materials shall be exterminated and cut evenly.
6.3.2 施工工艺Construction technique
（1）涂刷基层：用长把排刷把冷底子油涂刷在干净干燥的基层表面上，复杂部位用油漆刷刷涂，要求不露白，涂刷均匀。干燥4h以上至不沾脚后方可进行下道工序。
Base course brushing: To brush the cold primer oil onto the clean and dry base course surface with long-handled brush. For complex part, please coat with paint brush. As required, no white shall be found and the brushing shall be even. The next process cannot be carried out until it is dried for over 4 hours and feet cannot be stuck onto it.
（2）附加层施工Extra ply construction
对所有的阴阳角部位、立面墙与平面交接处做附加层处理，附加层宽度一般为300㎜.
To carry out extra ply treatment at all reentrant corners and external corners as well as the intersection between the vertical wall and the surface, and the width of extra ply shall be 300mm in general.
（3）测铺定位Measuring the paving location 在基层上弹出基准线，把卷材试铺定位。
To catapult the base line on the base course, and make membrane test pavement and positioning.
a、卷材的配置:将卷材顺长方向进行配置，使卷材长向与排水方向垂直，卷材搭接要顺水坡方向，不应成逆向。如下图
Membrane configuration: To configure the membrane along the longitudinal direction, making the longitudinal direction and the drainage direction meet at right angles. The membrane shall be lapped in the same direction as the water slope, and shall not be backward. See the figure below:
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