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Building Regulations

Building Regulations covering replacement doors & windows

In the past the Building Regulations mainly applied to new builds.  However these recent changes also apply to refurbishment projects. This means, if you are planning to change existing windows you will either need to have these installed and certified by a member of FENSA (Fenestration Self Assessment scheme) or you can have the windows and installation checked and certified by your local Building Control Office.

The legal requirements are:

Part A - Structure
When installing new windows or doors an assessment should be undertaken by the contractor as to the suitability of the support lintel above the replacement window or door.
 
Part B - Means of escape in fire
All windows to habitable rooms (but not kitchens, utility rooms, dressing rooms, bathrooms, wc's or shower rooms) at floors above ground level are required to be suitable for escape in fire. In addition, rooms at ground floor level whose only escape route is via another room must be provided with suitable escape windows.
 
A suitable escape window is defined as 'a window whose unobstructed openable area is alt least 0.33m2 and at least 450mm high and 450mm wide (a 450mm wide opening will need to be 735mm high). The bottom of the openable area should be no more than 1100mm above the floor. Any key required to open the window should be readily available.
Narrow top hung sashes or vent lights are not appropriate.

Further guidance can be found on the following website: www.planningportal.gov.uk. The equivalent section of the Scottish Building Regulations is known as Section 2 of the Scottish Building Standards Technical Handbook.

Our range of side hung uPVC windows are fitted with an egress hinges that achieves this.

Part F - Ventilation
If your original windows have trickle ventilators any replacement frames should also be provided with such.  The area of opening windows should not be less than that which was originally provided.

Further guidance can be found on the following website: www.planningportal.gov.uk. The equivalent section of the Scottish Building Regulations is known as Section 3 of the Scottish Building Standards Technical Handbook. Guidance can be found on the following website : www.sbsa.gov.uk

Our range of PVCu windows and doors are supplied with vented heads which meets these requirements in most applications.
 
Part K - Protection from falling, collision an impact
The requirements are too varied to be detailed here.

Further guidance can be found on the following website: www.planningportal.gov.uk. The equivalent section of the Scottish Building Regulations is known as Section 4 of the Scottish Building Standards Technical Handbook. Guidance can be found on the following website : www.sbsa.gov.uk

Part L - Energy efficiency in buildings
This is the section of the Build Regulations for England and Wales that sets the standards for energy efficiency in buildings. This legislation is designed to ensure that homes become more efficient in terms of the amount of energy they consume.

Further guidance can be found on the following website: www.planningportal.gov.uk. The equivalent section of the Scottish Building Regulations is known as Section 6 of the Scottish Building Standards Technical Handbook. Guidance can be found on the following website : www.sbsa.gov.uk

Our range of uPVC windows and doors conform to these requirements in most applications.

Part M - Disabled access
This section of the Building Regulations relates to access to and use of buildings, including disabled access.

The equivalent section of the Scottish Building Regulations is known as Section 4 of the Scottish Building Standards Technical Handbook. Guidance can be found on the following website:

www.sbsa.gov.uk

We have a number of products within our range of PVCu doors that can be used to meet these requirements.

Part N - Critical locations
If the windows are being fixed into critical locations as defined in Part N of the Building Regulations and shown in FIG.1, then toughened glass must be used.

Further guidance can be found on the following website:

www.planningportal.gov.uk. The equivalent section of the Scottish Building Regulations is known as Section 4 of the Scottish Building Standards Technical Handbook.

Our range of side hung uPVC windows comply with the safe access for cleaning windows requirement within Part N.

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