Duradek 已经在甲板和阳台防水业自1974年。他们率先使用PVC膜作为户外散步面和是第一个有屋顶膜批准的单层“上走”。Duradek膜是数以万计的屋顶板的整个北美地区的主要批准屋面材料。从大型公寓和排屋复合物单一家庭住宅，Duradek是建筑师，建筑商，物业管理，和房主谁欣赏我们注重细节的选择。
Bentonite is a type of clay having the unusual characteristics of cohesion, binding, sealing, and thickening. It is usually gray in color and when processed has the consistency of fine powder, similar to cement or flour. When bentonite is installed below grade as a waterproofing membrane, it becomes hydrated with the moisture that is naturally present in the soil and forms an impermeable barrier that absorbs and expels water and most chemicals, such as acids and salts (sodium bentonite). Bentonite can expand and contract an infinite number of times and is capable of absorbing seven to 10 times its own weight in water, swelling up to 18 times its dry volume. However, for bentonite to function properly as a waterproofing barrier, it is extremely important that this barrier remain under a constant minimum pressure of 30 to 60 pounds per square foot (PSF).
This topic includes information related to water repellents used during construction. Water repellents resist moisture from penetrating exterior building surfaces such as masonry, concrete, stucco and other exterior siding materials. Water repellents are a fluid substance made from acrylic, silane, silicone, siloxane and stearate.
This topic includes information related to sheet metal waterproofing installed during construction. Sheet metal waterproofing, commonly referred to as flashing, is an exposed continuous waterproofing formed of sheet metal (aluminum, copper, steel or zinc). Sheet metal waterproofing deflects or directs water from roofs and exterior walls, preventing water from entering a structure.
This topic includes information related to sheet waterproofing installed during construction. Sheet waterproofing materials prevent the passage of water. Sheet materials including bituminous, modified bituminous, elastomeric or thermoplastic. Sheets are attached or self-adhering.
This topic includes information related to fluid-applied waterproofing installed during construction. Fluid-applied waterproofing materials prevent the passage of water. Fluid-applied waterproofing materials are either hot fluid applied rubberized asphalt or cold fluid applied. Liquid is commonly applied in a viscous state to vertical walls beneath grade.