Condensation will occur when warm, humid air extracted from the bathroom, shower, kitchen or utility room hits the cooler surface of your ventilation duct.

If the extracted air is significantly cooled and you have a vertical pipe the moisture will condense back to water and become trapped in your ducting, potentially causing damage to the fan and property.

Systems using Roof Vents or Ducting rising vertically carrying extract air to outside benefit with the use of a condensate trap, this is to prevent any moisture forming inside the ductwork, dropping back down and into the fan unit.

This should then be connected to a suitable soil vent pipe using a 21.5mm overflow pipe.

Constructed of PVC
More Info - https://www.bpcventilation.com..../ductwork-condensati

Ducting ventilation is the silent hero behind the scenes, ensuring a continuous flow of fresh air throughout buildings. Comprising a network of ducts, these systems serve as the circulatory system of ventilation, efficiently transporting air from one point to another. Ideal for homes, offices, and industrial spaces, ducting ventilation plays a vital role in maintaining indoor air quality, regulating temperature, and removing pollutants. Whether it's the whisper-quiet hum of residential ducting or the robust efficiency of commercial systems, these concealed conduits ensure that every breath taken is fresh, clean air.
Choose your favorite 150mm ducting - https://www.bpcventilation.com..../ducting-accessories

Extractor fans, also known as exhaust fans, are indispensable devices designed to improve indoor air quality by efficiently removing stale air, odors, and pollutants from enclosed spaces. Installed in areas prone to moisture buildup, such as kitchens and bathrooms, extractor fans play a crucial role in preventing mold growth and maintaining optimal humidity levels. These fans operate by drawing air out of a room, promoting proper ventilation and creating a healthier environment. With various designs, including ceiling-mounted, wall-mounted, and inline options, extractor fans offer versatility to suit diverse applications, contributing to a more comfortable and hygienic living or working space.
Choose your extractor fans - https://www.bpcventilation.com..../extractor-fans/extr

Universal MVHR Tile Roof Vent Kit (Grey/Black)
Product Part Number
Tile roof Kit - RVTUBLACK

Description
Suitable for most types of concrete tiles

Suitable for heat recovery and other ventilation systems using up to 150mm ducting from MVHR unit

20,000mm2/m (20k) of airflow

Complete with

Universal tile vent
Adaptor from vent to 150mm
Reducers 150-125mm & 125-100mm

More info- https://www.bpcventilation.com..../universal-klober-ti