JUAL

Protection cap for ventilation cowl

The protection cap for ventilation cowl fits over the JUAL cowls and protects it from the heat generated when the roofing felt is welded to the cowls flange.

What is a protection cap – and why is it important?

When installing bitumen on roofs with ventilation penetrations, the membrane is welded directly to the flange of the ventilation cowl to achieve a waterproof and tight connection. However, the welding process generates high heat, which can affect or damage the upper parts of the cowl, especially if the material is sensitive to temperature exposure.

This is where the protection cap comes into play. It acts as a heat shield that covers the ventilation cowl during the entire welding process, allowing you to ensure a secure weld – without the risk of overheating or material damage.

Protect the cowl during bitumen installation

When installing bitumen around ventilation cowls, it is essential to ensure that the heat from welding does not damage the cowl or impair its function. This is where JUAL’s protection cap for ventilation cowl plays a key role. The cap is designed to fit precisely over JUAL’s ventilation cowls and provides effective protection against heat exposure during the welding of the bitumen membrane to the cowl’s flange.

This simple yet indispensable product ensures a professional and safe roof installation, maintaining both watertightness and material durability – without the risk of deformation, discolouration, or reduced functionality.

Simple design – big impact

The protection cap is designed to be quick and easy to use. It is placed directly over the ventilation cowl before welding and removed again once installation is complete. No fastening, tools, or special preparation are required – and it fits perfectly with JUAL’s standard ventilation cowls.

For the installer, this means saving time while also avoiding potential complaints due to damage caused by welding heat. The cap is reusable, making it both an economical and practical investment in installation quality.