Make it work for you
RUTH’S CHOICE: ROOF WINDOWS Impressed by the light levels in Ruth’s kitchen? Find out if installing new roof windows could work for you…
Roof windows can transform a dark or dingy room, especially in the mornings. While perfect for loft conversions, roof windows can also be used to brighten up any room with no void between ceiling and roof, such as extensions with flat roofs and mansard rooms.
Q What is a roof window?
Many people use the words skylight, rooflight and roof window interchangeably. But, according to British Standards, roof windows must be installed in the same orientation and ‘in plane’ with the surrounding roof, typically at a minimum 15 degree pitch and weathered into the roof using a skirt or flashing.
Q Which opening method should I choose?
The main options are centre pivot or top hung. Centre pivot can be swung around to clean on both sides, and is the least expensive option. Top hung windows offer uninterrupted views when open and suit rooms where headspace is restricted (i.e. by very low sloping ceilings).
Q Are there downsides?
Roof windows come in standard sizes and shapes, can be bought off-the-shelf, and are pretty affordable and easy to install. The main drawback is limited scale, particularly if you want an expanse of glass.
Q Any other options?
Rooflights and lanterns are much bigger and are used when frameless expanses of glass are required. They are commonly installed using an upstand or kerb system that supports the product and keeps it watertight. If there is a void between your ceiling and roof, consider a sun tunnel.
Q Do I need permission?
Standard roof windows often come under permitted development rights. Check with your local planning office.
“Help to minimise condensation by positioning your roof windows directly above a heat source, such as a heated towel rail or a radiator RUTH CORBETT, HOUSES EDITOR