When you are considering adding an extension to your house you will need to evaluate which is the best type of roof for your needs. This may be controlled by the type of extension you are intending to create and the planning rules already in place in the area you live. However, there are often times when the roof can be constructed to fit your needs rather than simply to blend in with your neighbours. This is certainly true when your roof will be at the back of your property and out of sight for most people.
When looking at roof construction it is important to talk to professionals regarding the strengths and weaknesses of each type. King Koating Roofing is a Canada based firm which will be happy to offer advice on the best roof and how the roofing construction can affect the finished product in terms of look and function.
Three main types of roof:
- Flat Roofs
A flat roof offers a lower profile and is often the right choice when extending a property. This is because it can allow the extension to be built without blocking light or affecting the view from existing upper floor windows. Whether you have a flat or a house you will appreciate the ability to retain your view!
The roofing construction is made up of a wooden frame; this frame should have a very slight slope in it to help rain water drain off. On top of this you will need to place a layer of plywood and fasten it down securely. On top of this it is normal to fasten a rubber, waterproof underlay; this will help with preventing leaks. Above this you will find a roofing felt which may be two or three layers thick. If your roof is larger then the correct roofing construction will be to layer this to avoid the potential for leaks. You can even add an additional sealer on top if you wish!
- Glass Roofs
This type of roofing construction is generally reserved for conservatories. The glass fits into a prefabricated frame which is screwed to other frames and ultimately to the upright supports which surround the extension. The glass used in this type of project must be toughened and, on particularly large roofs, you may need to add extra supports across the main structure.
- Sloped Roofs
This is the traditional style roofing construction which you see on many houses round the world. It is still constructed from a wooden frame but the wood is set at an angle to the walls and connects at an apex. There are several different ways of constructing a roof; some use cross sections whilst others rely on the main beam across the top for strength. All roofs with this type of roofing construction will have a felt membrane placed on top of the joists before the tiles are added. This will help to ensure there are no leaks into your home. Between the felt and the inner ceiling it is normal to pack insulation into your space; this will help to keep your house warm and reduce energy bills.