Ideally this should be around 2 2m.
Raising roof height for loft conversion.
For a loft conversion this can be reduced to 1 9m at the centre of the flight and 1 8m at the edges to allow for sloping roofs.
There are minimum practical requirements for headroom which the designs for your loft conversion must be able to meet.
So a reduced space of 1 9m above the centre and 1 8m on the lower side can be acceptable as long as you can achieve 2m on the higher side.
There is no minimum ceiling height to meet the building regulations other than above stairs which require 2m of clear headroom.
Your home is your personal space and should be designed with you and your family in mind.
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.
A ceiling height of 1 9 2 0 m once the conversion is complete.
Roof pitch the roof pitch is important as the higher the pitch of the roof the more space you will have to convert it into a new space.
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.
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.
Head height take a measurement from the top of the ceiling joist in loft to the underside of the ridge timber in the centre of the room.
2 march 2018 at 7 55am sg0102 forumite.
Measuring head height for a loft conversion when you measure from the bottom of the ridge timber to the top of the ceiling joist you need to have at least 2 2m of usable space for a conversion to be suitable.
A loft conversion which increases the height of the roof sometimes referred to as a roof lift loft conversion is when the ridge line of your existing roof is increased in height by installing new attic trusses at the correct pitch and height to allow a conversion.
Instead of the normal requirement for headroom of 2m above each stair tread it is recognised that ceilings to loft stairs may need to slope e g.