What Is an FRP Drain?
FRP drains are drains made of a “fiber-reinforced plastic” called FRP. There are vertical drains and horizontal drains. FRP drains are often used because they are lightweight, strong, waterproof, and durable.
FRP is used as a waterproof layer and FRP drain parts are also seamless and highly effective in preventing water leakage.
Uses of FRP Drains
FRP drains are used on balconies and verandas on the rooftops of ordinary houses and buildings. If the flooring material is FRP waterproofed, FRP drains are especially effective in preventing leakage. Inexpensive non-FRP drains often cause separation from the waterproof layer, but FRP drains are compatible with the FRP waterproof layer and provide a good seal.
FRP drains are installed with nails or caulking. Make sure they are tightly sealed to prevent air from entering the gap, and caulk them again after installation to improve waterproofing.
Principle of FRP Drains
The FRP in FRP drain refers to fiber-reinforced plastic, a composite material made of unsaturated polyester and glass fiber, which is highly waterproof and durable.
FRP drains consist of an FRP flange and a vinyl chloride body. The shape of the flange differs between the vertical and horizontal types, and using the same FRP drain for the FRP waterproofed floor and drainage prevents the drain from peeling off from the waterproof layer, thereby preventing leakage. For this reason, FRP drains are used together with FRP waterproofing on residential balconies, rooftops, swimming pools, etc.
Horizontal FRP drains make holes in the horizontal wall instead of the floor, allowing wider use of the floor. Drainage efficiency is lower than that of vertical drains, but they are easier to install and replace because they are easier to prepare the substrate.
Vertical FRP drains are difficult to process because holes are drilled in the floor, but they are characterized by their high drainage efficiency. Even if the waterproof layer and drain should separate, water will not leak if it does not flow back.
FRP drains for renovation have a large flange and are easy to process.