Building Regulations - What is Approved Document F?


Approved Document F of the Building Regulations covers Background Ventilation. It provides guidance on meeting building regulations and states that adequate ventilation needs to be provided to prevent excess condensation build up which could damage the structure of a property. 


What Do The Changes Mean?


The changes to Approved Document F require the majority of replacement windows and doors to be fitted with trickle vents.


What Is A Trickle Vent? 


A trickle vent is a device that allows fresh air to circulate naturally through a room and allow polluted air out. It creates a small hole in a window or door to provide permanent ventilation even when they are closed. They’re designed to improve the quality of air in a room.


Over the years, homes have become better insulated and windows and doors have improved so that homes are no longer naturally ventilated as they have been in past decades. This means pollutants can build up inside a home, as can condensation and mould as a result.


This is where trickle vents come in, they help avoid problems associated with poorly ventilated areas. Increased airflow throughout a home reduces pollutants and makes for a healthier environment.


When Do The Changes Come Into Effect?


The changes to Approved Document F come into effect from the 15th of June 2022 in England and the 23rd of November 2022 in Wales. Any window and door installation taking place from that date onwards must comply with the new building regulations.


Anything Else I Should Know? 


These changes to the building regulations are for England and Wales. 


It is also important to note that disclaimers and indemnity policies are not valid and will not be taken into consideration by LABC (Local Authority Building Control).


Who Should I Speak To About My New Windows & Doors? 


Please speak to your FENSA Approved Installer about the upcoming changes and what they mean for your property.


It is important to note that the date on which the contract was signed has no bearing on the registration of the work with FENSA. If the installation takes place from the 15th June 2022 onwards it will be expected to comply with the new building regulations.


It will be the responsibility of your window installation company to ensure your replacement windows and doors comply with the Approved Document.


What If I Don't Want Trickle Vents Fitted?


The new building regulations state trickle vents will be required by law in the majority of situations. There are exemptions to the rule (eg listed buildings and conservation areas) and these should be discussed with your FENSA Approved Installer.


If your property does not fall under one of the stated exemptions then your FENSA Approved Installer will talk you through what will be required to be fitted to your replacement windows and doors. 


What Do The Government Say?


The government have produced the following guide on ventilation in homes and what the new building regulations require - - Existing Home Ventilation Guide 


We would recommend all homeowners read this guide and then speak to their FENSA Approved Installer to discuss the changes in more detail.


To find your local FENSA Approved Installer simply enter your postcode on the FENSA website Here


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