What is a roof extension?

3. No part of the roof light, dormer or roof extension is any closer than 0.5 metres to the roof ridge, eaves or any party wall or verge. 4. The materials used in any exterior work are of similar appearance to those used on the existing house.

Likewise, people ask, can I put a flat roof on my extension?

You will also want to consider the aesthetics of your extension and how roofing fits into this. Flat roofing has been used with great visual impact in many modern extensions. This is by allowing the builder to create a very simple and understated roof.

One may also ask, how good are flat roof extensions? Pros of a flat roof extension: That's because creating one involves less materials, labour and time. – Flat roofs can still accommodate rooflights, which means you can reap all the benefits that a rooflight affords without needing a pitched roof.

Accordingly, what is a Catslide roof?

A catslide roof is a roof that continues down below the main eaves height and allows you to have a greater depth of building without increasing your ridge height.

Are flat roofs OK?

Flat roofs get a bad press, but remain popular, especially for modern blocks, outhouses, garages and extensions as they can be relatively inexpensive, and, with their low profile, they don't obstruct views from other parts of the building. The problems come when they are too flat and not properly maintained.

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How long does it take to put a roof on an extension?

around three to four months

Which is cheaper flat or pitched roof?

Pitched roofs cost more than a flat roof, and also take longer to install. This is because it is a more complex design than a flat roof that requires increased labour and additional materials.

Do you need planning permission for a flat roof extension?

Extensions of more than one storey must not extend beyond the rear wall of the original house by more than three metres. Anything more than three metres and you would require planning permission for the extension. The maximum eaves and ridge height of your extension must be no higher than the existing house.

How high can a flat roof extension be?

Flat roofs can give a clean and seamless finish internally to ensure a smooth continuation between the existing and new extension. The maximum height on the eaves for a flat roof construction is 3 meters, aiming to reduce the overbearing effect on your neighbour's side of the boundary.

How much is an extension per m2?

The average cost per m2 for an extension outside of London is between £1,200-£1,500. In London and the South East, the average cost per m2 is around £1,500-£2,000+. For two-storey extensions, add 50% to the cost of a single-storey extension.

What can you do with a flat roof?

5 Awesome Things You Didn't Know Your Could Do With A Flat Roof

NUMBER 1: Slap on a slew of sweet solar panels…and reap the benefits.
NUMBER 2: Use that roof to collect invaluable H20.
NUMBER 3: Transform that roof into a garden and live off its produce.
NUMBER 4: Keep the party going with an outdoor, rooftop patio.

What is a slanted roof called?

Sloping roofs come in many different varieties. The simplest is the lean-to, or shed, which has only one slope. A roof with two slopes that form an “A” or triangle is called a gable, or pitched, roof.

What is the side of a roof called?

Gable: The upper part of a side wall (or flank wall), usually triangular in shape, that comes to a point at the ridge of a sloping roof. Rafters: sometimes referred to as common rafters, these inclined lengths of timber rise from the eaves at the bottom of the roof to the ridge apex at the top.

What is an A frame roof called?

The Word: Roof Framing Terms. A valley rafter, as its name suggests, is a rafter that supports rafters in a roof valley. A common, and sometimes problematic, roof valley is where a roof is constructed and sheathed and an upper roof is built over the lower roof.

What is a Catslide Dormer?

Dormer roofs can be pitched with a gable end, hipped or half-hipped, flat or curved, or be mono-pitch. Others are hipped at the front or have roofs that slope to the front (sometimes called a catslide roof).

What are the parts of a shed roof called?

Shed Roof: A roof containing only one sloping plane; a single-pitch roof with no hips, ridges, valleys or gables; also called a half gable. Soffit: The underside of the eaves, or roof overhang, which can be enclosed or exposed.

Why are roofs sloping?

Pitched roofs offer the benefits of added insulation between the attic space and the interior of the home helping regulate and be less afflicted by extremes in temperatures that can come with flat roofs.

What is a pyramid roof?

A pyramid roof is a type of hip roof that has four sides that are all triangle shaped and all slope downward. They are built onto a square or rectangular frame. Pyramid roofs are a popular choice for a shed, gazebos, and summerhouses as they are a modern eye-catcher and definitely stand out from other roof types.

Why do houses have pointed roofs?

A more appropriate name is “low-slope” roof. All roofs must be slightly sloped to allow for proper drainage. Flat roofs must be slightly sloped towards the middle or the edges to allow water to drain properly. Many flat roofs experience leaking problems because of poor drainage, so ongoing maintenance is important.

What is the plane of a roof slope?

Roof pitch or slope is the angle of the roof surface above the "flat" or horizontal plane. So a 3-inch rise roof, also described as a 3 in 12 roof, means that for every 12" (or foot) of horizontal distance, the height of the roof increases by 3".

What is the best material for covering a flat roof?

EPDM

What is the best material to put on a flat roof?

Metal Flat Roofing

Metal is one of the most popular materials used for flat roof replacement. Metal, specifically aluminum, is known for its durability. Flat metal roofs can last for almost 35 years in ideal conditions. Plus, it has the added advantage of reflecting heat from the sun, which keeps energy costs down.