Minimum Roof Pitch For Loft Conversion

However if a complete re roof is required on a welsh property it must be insulated to a minimum u value of 0 15 w m k.

Minimum roof pitch for loft conversion.

Bungalow loft conversions a bungalow is always a special case and these are an easier challenge to tackle if you are converting a low ridge loft space. If it s 2 2m or more your loft should be tall enough to convert. Take a tape measure and run it from the floor to the ceiling at the tallest part of the room. This will make best use of the available height above the staircase.

A loft conversion is possible here if you have a low ridge height although the cost is higher than a non trussed roof. The minimum height you need for a loft conversion is 2 2m and you can easily measure this yourself. Where a property already has a steep pitched roof the eventual loft conversion will be much easier and ideally you are looking for headroom in the loft of around 2 2 to 2 6 meters. Any all side windows are a minimum of 1 7m above the ground your home is not within an area of outstanding natural beauty the roof extensions must be set back at least 20cm from the original eaves with the exception of hip to gable conversions it must not overhang the outer wall of the original house.

There are minimum practical requirements for headroom which the designs for your loft conversion must be able to meet. In england the required minimum u value for pitched roofs insulated at rafter level is 0 18 w m k whilst for flat ceilings the minimum is 0 16 w m k. To assess whether you have the space to accommodate this measure the clear headroom of your existing space from the top of the joists to the bottom of the rafters. This does add more to the cost of the project but nowhere near as much as removing the roof.

These u values also apply for conversions of existing roofs in wales. The ideal scenario is if you can stand upright in the centre of your loft and raise your arm above your head without crunching your hand on the inside of the roof. Most loft conversions use steel beams to support the new floor structure and roof. A ceiling height of 1 9 2 0 m once the conversion is complete.