U-shaped trough / V-shaped trough / Flashing board
Installation & Application
U-shaped trough
The installation of U-shaped trough mainly adopts the way of underlaying. There are outer cullis and inner cullis as below shown:
Installation of outer cullis Installation of inner cullis
Installation steps:
The biggest advantage of HIGOAL FRP trough is to change the previous complex, depending on worker’s technique and easy leaking installation into the DIY easy operation.
1、To ensure a smooth drainage, it is better to keep a proper lean when installing. HIGOAL suggests that every 2m cullis lean 1cm.
2、 The installation of cullis should starts from the corner or one end of the cullis. If you start from the corner, please the corner and the cullis first, Place a splint between two neighbor cullis to t. Stick the waterproof adhesive tape first when installing and fix it by rivet then.
3、 Clean it well after installation, check to ensure an efficient drainage.
V-shaped trough
 
Applied to domestic roof Installation of V-shaped trough
Flashing board
Installation of flashing board
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