stair to access new bedrooms and shower room in converted loft
conversions are now much more complex than was once the case - a
proper floor structure and consideration of means of escape in case
of fire are now mandatory
of existing roof construction and survey picture...
structure - the ceiling has been made see-thru for clarity...
typical existing wall supports to purlins (roof beams) - right..
new shower room is also added in the loft level - red components
are the new structure...
new stair fortunately comes up in the only place where there
is the required 2 metres headroom - it is still very tight.
The new floor joists are inserted between the existing ceiling
joists to minimise the loss of headroom due to the increased
depth of the floor structure.
roof timbers have been thickened by screwing and glueing additional
timber and a 'tie' has been added near the top - the existing rafters
are unusually small in cross section and may need additional support
beyond thickening - awaiting Engineer's report. Note that the roofwindows
to the bedrooms are a type allowing escape in case of fire - although
they should be further down the roof slope to comply with Building
Regulations guidance, at this roof pitch it would make it difficult
to exit and so we are discussing this with Building Control.