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In the UK, trickle vents above windows and doors were historically used for passive ventilation to prevent mould by allowing airflow. However, modern building p
by fartfeatures 2y ago
In the UK, trickle vents above windows and doors were historically used for passive ventilation to prevent mould by allowing airflow. However, modern building practices and regulations, including stringent air tightness requirements mandated by Building Control, have shifted focus towards more efficient ventilation solutions like Mechanical Ventilation with Heat Recovery (MVHR) systems. While trickle vents are still used in some cases, their prevalence has decreased compared to earlier practices
- secondcoming 2y agoPossibly, my flat was built 3 years ago and has trickle vents all over.
- fartfeatures 2y agoCheaper option than MVHR but notably worse. Missed opportunity.
- timrichard 2y agoWe're in the process of getting windows replaced, and the window company said they are now mandatory on all new and replacement windows. Apparently, it became law in June 2022.
- secondcoming 2y agoSeems they're mandatory unless you're deliberately fitting leaky windows! > When windows are replaced, a background ventilator or ‘trickle vent’ should be placed in the new window. This will replace any ventilation you lost, when installing a new window, because your previous window was leaky. If replacing your window did not reduce the amount of useful ventilation, this should be proven, and more ventilation is not needed. [0] https://www.gov.uk/government/publications/home-user-guide-template/existing-home-ventilation-guide https://www.gov.uk/government/publications/home-user-guide-t...
- fartfeatures 2y agoYes in retrofit, OP was suggesting that they are mandatory in new build houses and that is not the case. If they were mandatory nobody would be fitting MVHRs as trickle vents make them not function.