Skirting Board

[daginge]

Hi all can anyone tell me do you plaster behind new skirting board or not? If so what sort of plaster is required?TIA

[buildersmate]

An odd question.
Yes, you plaster before fitting a skirting board, then the board is stuck (or nailed) over and the gaps at the top filled with decorators' filler.
If you don't do it that way, the plasterer cannot use his long flat gauge to get a flat surface down the whole length of the wall. And also the thickness of the plaster will start to encroach on the profile at the top of the skirting.

[daginge]

An odd question indeed BM. After having a new damp course injected it failed and the contractor returned and re-injected however his guarantee did not cover remedial work, re-decoration and skirting replacement etc so I plastered it myself so that it looked neater for Christmas. When it failed YET AGAIN, even before I'd had chance to replace the skirting I dragged the offending contractor and a rep from the company who's product he uses back in they both agreed that it was my fault as I had plastered the wall with ordinary plaster, allowing moisture from the plaster to leach into the wall and work it's way upwards!!
Do I need to use a special plaster and use the plaster to hold noggins in to finally fix the skirting to?

[buildersmate]

Pardon? All plaster is wet when applied. It dries out over a few weeks. Once it is dry, no more water!
DPC treatments are going to be horizontally below where the bottom of the skirting is, by about a bricks-worth. They stop the CONTINUAL wicking of ground water upwards, across both the outer and inner skins (assuming a cavity wall).
Sound like bull to me.

[scotman]

what do you mean by the DPC failing?

[daginge]

By DPC (damp proof course) failing I mean the damp has returned in the same spots as before.

[The Builder]

1 is it a stone, solid wall, or cavity?
2 was it a chemical injection (silicone)

[daginge]

Its a cavity wall, well, walls...and was injected with 'permaguard' not sure if it is silicone?

[scotman]

I am not an expert but I was led to believe that after installing a chemical DPC it will take the wall several months to dry out and it should not be plastered until then.

[daginge]

we waited over 12months to replaster & it still failed....is there a special plaster i need to use??

[The Builder]

........ usually just Carlite Hardwall, with Multi-Finish skim ............ but if you want to apply a barrier .......... then tank it first.
ie ........... thin coat of sand & cement plaster (smoothish finish), 3 coats "Synthaprufe" or similar................ then the carlite & finish.
Traditional, but effective ............. :o)))

[scotman]

Daginge

I had a friend who had persistent problems with damp penetration. I have emailed him to enquire as to the final fix for it. If and when he replies I will pass it on.

[scotman]

daginge
My friend has informed me that his problem was down to hygroscopic water and was cured by applying appropriate sealnt befrore plastering. He said that one from International Paints was used but can't remember which one.

[daginge]

Excellent....Thanks for the answers guys, really appreciate them! Will crack on using your ideas & fingers crosed!!