Hello,

I want to divide my large roof space (triangular cross-section 4m high
at highest point) into 2 bedrooms by timber partition walls.
Currently the roof insulation is exposed and I can see the roof joints
(to which of course I will be fixing the head plate of my future
partitions).

Should I build the partition walls before "closing the roof" (will be
using timber cladding for the roof) or should I do the roof first
meaning that the cladding will between the head-plate and the joist ?

I'm going to need to pass electricity cables through the studs of the
partition wall so it seems to me more practical to build the walls
before doing the roof cladding. The power cables are in position
already behind the roof joists and thus currently easliy accessed.

Ideally I want to do the cladding now so that the roof space is usable
in the short term but say in 2 years divide the space into 2 rooms.
Any advice on the pros and cons of the two approaches would be
gratefully received.

Thanks

Tom

TomC wrote:
Hello,

I want to divide my large roof space (triangular cross-section 4m high
at highest point) into 2 bedrooms by timber partition walls.
Currently the roof insulation is exposed and I can see the roof joints
(to which of course I will be fixing the head plate of my future
partitions).

Should I build the partition walls before "closing the roof" (will be
using timber cladding for the roof) or should I do the roof first
meaning that the cladding will between the head-plate and the joist ?

I'm going to need to pass electricity cables through the studs of the
partition wall so it seems to me more practical to build the walls
before doing the roof cladding. The power cables are in position
already behind the roof joists and thus currently easliy accessed.

Ideally I want to do the cladding now so that the roof space is usable
in the short term but say in 2 years divide the space into 2 rooms.
Any advice on the pros and cons of the two approaches would be
gratefully received.



Tom

You would normally do the walls first and then clad everything afterwards.

You do realise you need Building Regulations approval for a roof
conversion, don't you? (check out your Local Authority's website.)
Should you decide to proceed with an unauthorised conversion (which
isn't wise), then for safety's sake, at least take into account how
anyone trapped in your roof space will manage to escape in the event of
a fire.

walls first.
Make sure you have a secondary (fire escape) exit ... Building Regs will
want one.

Think well about insulation, heat loss will be significant, and just
plonking insulation in, is not good enough - need to consider water vapour,
or you could end up with interstitial condensation.
also importantly think about heat gain if a dark roof - or room will be
baking in Summer.

I would use a foil faced Urethane foam board.


"Bypass" wrote in message
...
TomC wrote:
Hello,

I want to divide my large roof space (triangular cross-section 4m high
at highest point) into 2 bedrooms by timber partition walls.
Currently the roof insulation is exposed and I can see the roof joints
(to which of course I will be fixing the head plate of my future
partitions).

Should I build the partition walls before "closing the roof" (will be
using timber cladding for the roof) or should I do the roof first
meaning that the cladding will between the head-plate and the joist ?

I'm going to need to pass electricity cables through the studs of the
partition wall so it seems to me more practical to build the walls
before doing the roof cladding. The power cables are in position
already behind the roof joists and thus currently easliy accessed.

Ideally I want to do the cladding now so that the roof space is usable
in the short term but say in 2 years divide the space into 2 rooms.
Any advice on the pros and cons of the two approaches would be
gratefully received.



Tom

You would normally do the walls first and then clad everything afterwards.

You do realise you need Building Regulations approval for a roof
conversion, don't you? (check out your Local Authority's website.) Should
you decide to proceed with an unauthorised conversion (which isn't wise),
then for safety's sake, at least take into account how anyone trapped in
your roof space will manage to escape in the event of a fire.

All,

Thanks for the responses and helpful advice received so far.

Just to clarify : the "roof space" is actually the first floor of the
house which can be described as open plan. It's a new house and the
architect designed the first floor so that we could later put in
partition walls to divide it into 2 bedrooms. There is a window in
place for one bedroom and a velux in place for the other. The house
is actually in France, but I would be interested to know if these
count as secondary fire escapes under UK regulations?

Thanks again

Tom

TomC wrote:
All,

Thanks for the responses and helpful advice received so far.

Just to clarify : the "roof space" is actually the first floor of the
house which can be described as open plan. It's a new house and the
architect designed the first floor so that we could later put in
partition walls to divide it into 2 bedrooms. There is a window in
place for one bedroom and a velux in place for the other. The house
is actually in France, but I would be interested to know if these
count as secondary fire escapes under UK regulations?

Thanks again

Tom


Yes they can, if they meet certain standards.

These are extracts from the UK Building Regulations.

'The window should have an unobstructed openable area that is at least
0.33m2 and at least 450mm high and 450mm wide (the route through the
window may be at an angle rather than straight through).The bottom of
the openable area should be not more than 1100mm above the floor' (for
normal windows).

For Velux windows, in the plane of the roof slope, the Regulations refer
to the bottom of the window being a max 1700mm up from the eaves
(measured along the roof slope), and 600mm min, 1100mm max measured
vertically from the floor to the bottom of the openable area.

You can down load a copy of the AD's he

http://www.planningportal.gov.uk/eng...313971412.html

Of course, the French might have their own rules.