Cost of different roof types on new extension

Hi When deciding on what sort of roof you can have on an extension, it often depends on your property and the height from the ground to your existing windows. It will also depend on your Neighbouring properties, due to the blocking of light and your shared boundary. My advice would be to speak to an architect, as they should be able to work all this out for you, including Planning permission and building regulations. Obviously, you can tell them exactly what finish you're after and then they can advise you what they think would work best for your property. There's not much difference between a flat roof and a pitch roof in terms of costs, but the price will go up once you start adding Windows. I built a flat roof on my extension of my property (with roof lanterns), as a pitch roof would not work, due to height restrictions. This does limit the airflow in my extension and can be too warm in the summer. I personally would choose opening windows on a flat roof or velux Windows on a pitch roof for airflow. If you install a good sized set of French doors/bi-fold doors, then this will help alleviate that issue without having to install Windows in your roof. In terms of the flu for your wood burner, there are so many regulations now regarding Wood burners. So I would advise looking online and finding a local company that can give you all the advice you need. Kind regards Tom Pickering

A flat roof is less expensive for you and the building. They need to see the building up close to get a better idea!