屋面作娱乐活动和工业场地，如舞场、小球类运动场、茶社、晾晒场、观光台等，防水层上应铺设块材保护层。防水材料不必满粘。对卷材的延伸率要求不高，多种涂料都能用，也可做刚柔结合的复合防水。

Roofing for entertainment and industrial venues, such as dancing ground, ball games ground, tea club, sun drying ground, sightseeing platform, waterproof layer should be paved with block protective layer. Waterproof materials need not be sticky. The requirements for the elongation of rolled materials are not high, and various coatings can be used.

倒置式屋面是保温层在上、防水层在下的种作法。保温层保护防水层不受阳光照射，也免于暴雨狂风的袭击和严冬酷暑折磨。选用的防水材料很宽，但是施工特别要精心细致，确保耐用年限内不漏。如果发生渗漏，修渗堵漏很困难，往往需要翻掉保温层和镇压层，造成困难和浪费。

The inverted roof is a kind of method that the insulation layer is on the top and the waterproof layer is under. The insulation layer protects the waterproof layer from sunlight, and is free from the storm and the severe heat of winter. The waterproof material used is very wide, but the construction must be meticulous and meticulous to ensure that there is no leakage in the service life. If leakage occurs, it is very difficult to repair the leakage, often need to turn over the insulation layer and the pressure layer, resulting in difficulties and waste.

蓄水层面很像水池，只是水浅，一般不超过25mm。防水层长年浸泡在水里，要求防水材料耐水性好。可选用聚氨酯涂料。

The water storage level is very similar to the pool, only shallow water, generally not more than 25mm. The waterproof layer is immersed in the water for many years, which requires waterproof materials to have good water resistance. Polyurethane paint is available.

工程条件要求选材

Selection of engineering conditions

建筑等级是选择材料的首要州苗木 保定通风管道 丝网立柱模具 尼龙输送带 保定防水 保定空压机 高碑店养老院条件，一、二级建筑必须选用优质防水材料，如聚酯胎高聚物改性沥青卷材、合成高分子卷材、复合使用的合成高分子涂料。