Ceiling Joists

Not worth the expense & hassle.

 

The timbers look like they have been re-used from a prefabricated roof.

 

An option would be to install a steel ridge beam, may need a SE to calculate sizes, is there a wall at either end?

Then could do away of the joists altogether.

Rafter may need increasing in size also.

 

A lot of work, a lot of hassle & a large bill for the work,structal engineer,etc, just to tart up a room.

 

now you know why you should make sure you get rid of the missus while you do these things,it works out cheaper and easier.It would cost a fair bit to do what you want to do,probably at least a couple of grand.

 

Easily, also depends what horrors you may find during the work, so a contingency fund is essential, say another thousand.
And just looking at 1st photo's starts alarm bells ringing.

 

May not require ridge beam, as there are already steels at either side. While the steels are exposed I would get SE to confirm that the bearings are OK (doesn't look like pad stone).

 

Beam support looks a right mess left side in 1st photo.

In fact both beams look a mess, now I zoomed in, prehaps I'm too fussy, too old school.

 

I would look at getting an SE to go over, might be expensive but worth the cost.

There are pad stones available in 300x330mm in 215 and 140mm thicknesses. This means it would spread across both inner and outer cavities.

Looks like they have infilled the cavity with block work to one pier? the other side is a better, but still no padstone.

 

That was one of the first things I noticed, but kept quiet.

 

I would like to go something like this.

 

My problem is I'm too fussy, I'm old school like to use padstones, etc, but today some builders just bed steel straight on engineering bricks base pier.

Agree with Jit, worthwhile getting SE to have a nosey.

 

Was the extension carried out under building control? looks like it may have been built pre 2008? or earlier as doesn't have breathable felt.

Having a sloped ceiling would be the best option. it would need insulation adding.

 

May be worth ringing building control, they may do a free initial visit. But certainly wouldn't be a full fee.

The insulation would need to be done allowing 50mm airflow. Then over boarded with another layer of insulation. They may tell you what u value is needed.

 

Spent nearly £1000 on SE for steel sizes and splice connections for loft conversion. (no site visit).