Tower-Type Prefab

Scope of Application

An adjustable-diameter waterproofing prefab designed for pipe penetrations ranging from 23 mm to 228 mm. During installation, simply select the matching step level, cut off the portion above it, and the prefab will fit the pipe perfectly. The base flange is then heat-welded to the roof membrane to form a reliable seal.

Technical Advantages

• A single prefab covers 8 common size ranges (D23-D228), offering exceptional versatility

• The tiered structure allows for straightforward cutting, enabling workers to quickly create an opening that matches the pipe diameter exactly

• Factory-molded as a single piece without seams, eliminating the risk of post-installation weld failure caused by improper lap joint treatment