Asphalt is one of the oldest roofing technologies still in use today and it is a reliable solution for both residential and commercial roofing needs. Asphalt roofing uses asphalt as a waterproofing membrane.
商业沥青屋面系统由两个或多个防水层组成。这种冗余为建筑业主提供了持久的防水保护。
多层结构让您高枕无忧,屋顶经久耐用
BUR is the oldest of the current roofing technology and has been around for over a century. It consists of melting bricks of hot asphalt in a large metal kettle and using mops to apply that asphalt in-between a base sheet, ply sheets and lastly a cap sheet. Ply sheets and additional layers of asphalt can be added until the desired thickness has been reached. While cap sheets are very popular, they are not used on all jobs. Instead of using a cap sheet, some jobs are finished with a layer of gravel spread out over the last layer of asphalt.
SBS 于 1970 年代推出,其特点是使用聚合物材料 SBS 改性的沥青(因此称为改性沥青)。这种合成橡胶使 SBS 板材能够达到比其他沥青系统更高的伸长率等级。 SBS 系统还具有最广泛的应用方法,因为它们可以是热拖、冷应用、热焊接或自粘。典型的 SBS 系统由两层屋面膜组成。首先,安装一层表面光滑的 SBS 基片,通常在绝缘层或盖板上。该系统在光滑的基层/层片上涂有颗粒状的盖片。 SBS 膜按 ASTM 编号、类型和等级分类:
ASTM D6162 and D6163 have three type classifications, Type I, Type II and Type III.
ASTM D6164 has two type classifications, Type 1 and Type 2. Typically, the higher the type, the larger the mass and physical properties. There are two grades of SBS sheet:
在大多数情况下,ASTM 编号、类型和等级由建筑师指定。
APP 于 1965 年首次在意大利推出,十年后于 1975 年引入美国,APP 的特点是经过改性的沥青(因此称为改性沥青),其中包括无规聚丙烯——一种使屋面膜具有耐久性的塑料,此外防止紫外线和天气事件的破坏性影响.. APP 通常只能通过手电筒应用——这是与 SBS 的关键区别。就像 SBS 系统一样,大多数 APP 系统将由两层膜组成,一个光滑的片材和一个颗粒盖片。然而,APP 片材通常安装在 BUR 基板或隔热层上,因为许多基板不能直接被烧毁。 APP 表也用于恢复现有的屋顶系统。 APP 膜按 ASTM 编号、类型和等级分类。
ASTM D6222 和 D6223 有两种类型分类,I 型和 II 型。通常类型 II 将具有比类型 II 更大的质量和更高的物理特性。 APP片材有两个等级:
在大多数情况下,ASTM 编号、类型和等级由建筑师指定。
Although not a separate type of roof technology like BUR, SBS or APP, energy cap roofing membranes are factory coated white cap sheets that reflect sunlight away from the roof and meet ENERGY STAR guidelines.There is an EnergyCap™ cap sheet available for each of the roofing technologies mentioned above.