Fitting a new window questions

[ed]

Hi Folks,

Now that I've tracked you down ( ok Jason phoned up and told me where you all were) I've got a question on how to renovate /refit some windows.

Background: It's a 1940s beach bungalow, 3" square timber frame studwork, clad on the outside with corrigated asbestos sheet and then rendered up the outside. (Complete with pebble dash).

All the internal fibre board has been stripped off the studwork so I can re-wire, re-plumb, fix the rotten studwork where the roof was leaking, insulate and dry-line.

The diagram below shows how the current casements are fitted. No frame just straight to the studwork, with beading to hold it in place.

Basically I want to keep the casements, fit a frame around them and make them opening. The studwork is rotten at the bottom so can be move apart slighlty when replacing, but I am stuck on how I finsh the outsid bit.

What do you guys think?

Cheers

Ed

[jfc]

Hi Ed ,
Now i see what you are talking about . so you have 75mm internal stud plus the frame . You can make the frames out of timber to mach what ever thickness you have or make them out of stocked timber and put a lining around whatever internal mess is left showing finished with an architrave .
Am i on the right track ?

[ed]

Sorry JFC,

Not sure I get you. Do you mean put the new frame onto the "front" of the stud?

Want to join me in "the chat " room?

[jfc]

I was thinking you fit the window up to the external beading .
Would that work ?

[ed]

Hi Jason,

Something like this?



Steps for this would be:
1) Move the studs further apart
1) Build the new frame and fit the old casement to it (hinged)
2)Cut back the asbestos sheet to enlarge the opening
3) Move the studs further apart
4) Fit the external beading using mastic to seal the joints.

It's step 4 I am not sure about.

Should I be putting a damp proof membrane somewhere?

Here are some pic of the windows as they are.

Outside - one of the good ones
The transome if just attached to the studwork either side and the Vent light just stuck in on top of that.



Inside - this is the worst window and the casment is also rotten and needs replacing. In total there are 10 windows to sort out, with two needing totally new casements as well.



Most people have replaced with plastic, but I'd rather not take that approach as I like the georgian glazing.

Any other suggestions to make this simpler? Am I barking up the right tree?

Cheers

Ed