Flat Roof Extension With Lantern Cost

We are planning a single storey extension to the rear of our property 3 5 metres x 11 metres.

Flat roof extension with lantern cost.

On a flat roof extension installing bi folding patio doors and a roof lantern can make the space as light as a conservatory. A large roof lantern including labour can range between 3000 to 4500. According to an article in the daily telegraph flat roof extensions with roof gardens can add anywhere between 10 and 15 to the value of a home a smart investment to make should you ever decide to sell up. Single storey extension cost guide.

The average cost per m2 for an extension outside of london is between 1 200 1 500. Naturally the construction of a roof lantern relies on using glazing bars as a support structure for the glass these are visible from underneath unlike a flat rooflight. The roof lantern is a hybrid roof solution. Think flat roof but with a supporting up stand or kerb and then glass box construction on top.

Whereas glass only designs are difficult and expensive to implement since the introduction of tighter building regulations roof lanterns look fantastic and provide plenty of daylight while still offering good levels of thermal efficiency. The cost of installing a roof lantern can vary depending on the style material size and design you opt for. Using the build it estimating service we ve priced this 20m2 single storey rear extension at 34 662 including labour plant materials and vat. Flat roof extension cost you will likely have a budget for the project and in this case learning that a flat roof generally costs less than a pitched roof will be good news.

It borrows conservatory roof technology and combines it with a traditional flat roof to create a highly flexible solution which maximizes the flow of light into pre existing and new rooms. Flat roof extension cost. For two storey extensions add 50 to the cost of a single storey extension. Opinion is divided about whether we should go with a flat roof with a large roof lantern ie an orangery or a pitched tiled roof with velux windows.

This is because a flat roof requires less structural engineering and can utilize less expensive materials than the pitched variety. So you need to look for a roof lantern with minimal glazing bar connectors such as the slimline tm roof lantern will help to minimise the impact on the look and the amount of light that will flow through. The project features bifold doors and a roof lantern and could be the perfect choice for creating an open plan kitchen diner or a similar zone. In london and the south east the average cost per m2 is around 1 500 2 000.