单层屋面系统的技术特点是：防水卷材为单层、空铺、暴露、机械固定、搭接密封。单层屋面系统的基本做法是：以螺钉(固定钉)、垫片和压条等配件，采用机械同定技术．将屋面各构造层次固定在屋面基层(着力层)上。卷材盖住固定件的钉帽(图I)．卷材搭接部位采用本体焊接粘结、热熔粘结或胶带粘结，使防水层达到完全封闭状态。
The technical features of single layer roof system are: single layer, empty laying, exposure, mechanical fixation, lap sealing. The basic method of single-layer roof system is to fix all structural layers of the roof on the base layer of the roof (force layer) by using the Mechanical Co determination technology with the accessories such as screws (fixing nails), gaskets and battens. The coiled material covers the nail cap of the fixed part (Fig. I). The overlapping part of the coiled material adopts body welding bonding, hot-melt bonding or adhesive tape bonding to make the waterproof layer completely closed.
优点：
advantage:
1)实现单层卷材空铺作业，减少屋面构造层次和作业层次．可减轻重量，节约材料，降低造价。
1) It can reduce the weight, material and cost.
2)实现多种材料施工一体化．可将隔汽层、保温隔热层、卷材防水层衔接作业，有利于加快工程进度。
2) Realize the integration of various materials construction, connect the steam barrier, heat insulation layer and waterproof layer of coiled material, which is conducive to the acceleration of the project progress.
3)细部构造部位的卷材使用焊接或胶带粘结，可达到可靠的封闭效果。
3) The coil of the detailed structure is welded or taped to achieve reliable sealing effect.
4)实现作业层面全部干作业．施工简便，易于控制质量。劳动强度相对传统作业较轻。
4) It is easy to construct and control the quality. The labor intensity is lighter than the traditional operation.
5)可在较低温度环境下施工，受基层平整度和潮湿的影响较小；可做到无明火作业，施工环境安全环保。
5) It can be constructed in a lower temperature environment, less affected by the flatness and humidity of the base; it can be operated without open fire, and the construction environment is safe and environmental protection.