Hi there

I have a situation where I am creating an outdoor terrace at 2nd floor
level. This means that a previously internal wall (plasterboard stud
wall) will form one edge of the terrace, so it will be outside. My
question is this: would it be better to construct a whole new wall, or
could the existing wall be weatherproofed an insulated in some way so
that it would not mind one side of it being outside? Any comments or
help would be welcomed. Thanks.

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Hi there

I have a situation where I am creating an outdoor terrace at 2nd floor
level. This means that a previously internal wall (plasterboard stud
wall) will form one edge of the terrace, so it will be outside. My
question is this: would it be better to construct a whole new wall, or
could the existing wall be weatherproofed an insulated in some way so
that it would not mind one side of it being outside? Any comments or
help would be welcomed. Thanks.


New wall

wrote:
Hi there

I have a situation where I am creating an outdoor terrace at 2nd floor
level. This means that a previously internal wall (plasterboard stud
wall) will form one edge of the terrace, so it will be outside. My
question is this: would it be better to construct a whole new wall, or
could the existing wall be weatherproofed an insulated in some way so
that it would not mind one side of it being outside? Any comments or
help would be welcomed. Thanks.


I suppose you could replace the outer plasterboard with Aquapanel.
Similar products are used to clad modern buildings

On 29 Jan, 09:22, Stuart Noble
wrote:
wrote:
Hi there

I have a situation where I am creating an outdoor terrace at 2nd floor
level. This means that a previously internal wall (plasterboard stud
wall) will form one edge of the terrace, so it will be outside. My
question is this: would it be better to construct a whole new wall, or
could the existing wall be weatherproofed an insulated in some way so
that it would not mind one side of it being outside? Any comments or
help would be welcomed. Thanks.I suppose you could replace the outer plasterboard with Aquapanel.
Similar products are used to clad modern buildings

Replace the outer panel (or board over it) with a general purpose
external cement board like viroc etc (aquapanel is funny stuff and
very brittle), then render. A common building technique when filling
in an external doorway etc, is to board with viroc, render and maybe
pebbledash. Much quicker than building a block wall, and lighter.
Simon.

Stuart Noble wrote:
wrote:
Hi there

I have a situation where I am creating an outdoor terrace at 2nd floor
level. This means that a previously internal wall (plasterboard stud
wall) will form one edge of the terrace, so it will be outside. My
question is this: would it be better to construct a whole new wall, or
could the existing wall be weatherproofed an insulated in some way so
that it would not mind one side of it being outside? Any comments or
help would be welcomed. Thanks.


I suppose you could replace the outer plasterboard with Aquapanel.
Similar products are used to clad modern buildings

The way that my house was dione..and archtect and BCO approved, was a
constructuion of..

Plasterboard, foil lined.

6x3 studwork - gaps filled with rockwool (celotex better)

19mm water resistant ply

building paper - breathable splashproof membrane.

1x 1 1/2" batten over.. Drip bead nailed to lowest batten.

Expanded metal over that.

Two coats of render. I wish in some areas I had sealed that.

two coats of paint.

As I understand it the ply makes for a ove sideways.

The building paper is to stop any water that might get in from soaking
into the ply.

The battens form an airgap, that helps keep all the wood work dry.

The mesh and render coating is a stormproof coat that keeps the water
out. You could replace that with any cladding whose appearance was
suitable. Or indeed build a single brick wall outside the lot, keyed to
the ply by the simple expedient of driving big nails into the studs and
keying them into the mortar joints.

I strongly recommend the ply. It adds enormously to the overall strength.