PLASTERBOARD ON EXTERNAL WALL

[grifter]

After some advice please before l proceed.
My conservatory has been dot and dabbed straight onto the exterior wall, and skimmed.
There are areas which feel damp and the plasterboard has gone quite soft.
Should l take it all off back to the brick and seal the brickwork with something, then re board it or build a stud wall in front of it?
Thanks

 

[foxhole]

Better to cure source of damp . Can’t see any conservatory in the photo just a wall.

 

[grifter]

It's the side wall of the conservatory

 

[grifter]

Better to cure source of damp . Can’t see any conservatory in the photo just a wall.

This is where it is the worst. Plasterboard is mush and blockwork is damp. Water could be getting in somewhere. What do you reckon?

 

[foxhole]

How about photo of property? We all know what damp looks like .

 

[Dereekoo]

Look at Kingspan K118 brochure re fixing to solid bwk walls

 

[grifter]

How about photo of property? We all know what damp looks like .

It's the external wall of my conservatory. Been dot and dabbed onto lightweight block, insulation and outer brickwork.

 

[Dereekoo]

It's the external wall of my conservatory. Been dot and dabbed onto lightweight block, insulation and outer brickwork.

Looks like you have a leakage problem from somewhere so that needs to be located and fixed 1st before you think of replacing plasterboard by dot and dabbing or fixing to battens.

 

[foxhole]

Looks like the sloppy job done on the parapet wall at roof level is causing all your problems

 

[grifter]

Looks like the sloppy job done on the parapet wall at roof level is causing all your problems

What exactly are you referring to and what should l do to fix it?

 

[Notch7]

What exactly are you referring to and what should l do to fix it?

The weathering detail at the abutment to the house and window cill looks badly done - doesn’t appear to be lead flashing over the parapet where it meets house

the Conservatory was fitted with a rafter glazing bar next to the wall, rather than a wall / gable glazing bar, leaving a big gap for the lead at the top

something like this would be better

ALUKAP-XR White Glazing Wall Bar with Gasket 3000mm x 60mm - Screwfix

Order online at Screwfix.com. High quality aluminium glazing bar system, suitable for glass or Axiome multiwall polycarbonate of any thickness. Upstand on the side offers a perfect finishing detail to the final rafter of a roof where it butts up against a rising wall. Rafter gasket stretched...

www.screwfix.com

there’s probably no dpc in the parapet wall to stop damp transfer downwards

theres probably no vertical dpc stopping damp travelling across from the front.

 

[grifter]

The weathering detail at the abutment to the house and window cill looks badly done - doesn’t appear to be lead flashing over the parapet where it meets house

the Conservatory was fitted with a rafter glazing bar next to the wall, rather than a wall / gable glazing bar, leaving a big gap for the lead at the top

something like this would be better

ALUKAP-XR White Glazing Wall Bar with Gasket 3000mm x 60mm - Screwfix

Order online at Screwfix.com. High quality aluminium glazing bar system, suitable for glass or Axiome multiwall polycarbonate of any thickness. Upstand on the side offers a perfect finishing detail to the final rafter of a roof where it butts up against a rising wall. Rafter gasket stretched...

www.screwfix.com

there’s probably no dpc in the parapet wall to stop damp transfer downwards

theres probably no vertical dpc stopping damp travelling across from the front.

OK thanks for the input. That goes where the lead is against the wall?

 

[grifter]

The weathering detail at the abutment to the house and window cill looks badly done - doesn’t appear to be lead flashing over the parapet where it meets house

the Conservatory was fitted with a rafter glazing bar next to the wall, rather than a wall / gable glazing bar, leaving a big gap for the lead at the top

something like this would be better

ALUKAP-XR White Glazing Wall Bar with Gasket 3000mm x 60mm - Screwfix

Order online at Screwfix.com. High quality aluminium glazing bar system, suitable for glass or Axiome multiwall polycarbonate of any thickness. Upstand on the side offers a perfect finishing detail to the final rafter of a roof where it butts up against a rising wall. Rafter gasket stretched...

www.screwfix.com

there’s probably no dpc in the parapet wall to stop damp transfer downwards

theres probably no vertical dpc stopping damp travelling across from the front.

So is this bar a complete replacement for the exististing end bar, meaning taking the glass panel out to fit it, or is there an easier way to sort the problem?