Perimeter insulation upstands - external walls only or internal walls as well

[Hannah82w]

We've built a timber frame on block work foundation walls with block and beam floor. All our internal walls are either built on lower block work walls (it is single storey and some of the internal walls are load bearing/supporting) or directly onto the block and beam floor as we don't intend to change the layout. The section and foundation plan drawings show an insulation upstand around the external walls but do you normally also run this around the internal walls of each room as well? Or should we because of the internal walls being directly on block work or B&B floor?

 

Does the upstand also double up as the expansion joint for the screed, or is that something else entirely?!

 

Thanks!

[nod]

All walls including studs 

Did ours yesterday 

[Dave Jones]

where is the DPC ?

[Big Jimbo]

8 minutes ago, Dave Jones said:

where is the DPC ?

Bottom left hand corner of the picture.

[nod]

Just now, nod said:

25 mil down from the upstand 

 

[nod]

My mate called today He fits UFH for a living 167 m2 He said yeah I’d have the pipes  in and tested in under a day 😉

[Rishard]

How much insulation have you laid over b&b? Ta 

[Kelvin]

On 14/07/2023 at 17:15, Hannah82w said:

We've built a timber frame on block work foundation walls with block and beam floor. All our internal walls are either built on lower block work walls (it is single storey and some of the internal walls are load bearing/supporting) or directly onto the block and beam floor as we don't intend to change the layout. The section and foundation plan drawings show an insulation upstand around the external walls but do you normally also run this around the internal walls of each room as well? Or should we because of the internal walls being directly on block work or B&B floor?

 

Does the upstand also double up as the expansion joint for the screed, or is that something else entirely?!

 

Thanks!

 

We ran ours around the internal panels. I also filled in the voids. 
 

No the upstand doesn’t double up as the expansion joint as it’s too rigid. We fitted a foam strip  around the perimeter and the around the panels.