Dot and Dab or full plaster

babyblade41

So here in renovation land ... we have now removed all the plaster down to the brick work of our 1900's house on a hill.

The plasterer started to put a base coat in one area (The stuff before the nice top coat) 2 weeks ago . Some is still damp so this tells me the damp is still about.

I don't really buy into the theory of rising damp and possibly an old aerial lead was coming down the external wall into this particular corner . We have now removed the offending pice and I'm not totally sure if this was the cause.

Roofing has been re-done ( The room is downstairs) Chimney breast all sealed and dry .

The plasterer wants to dot and dab moving forward but I'm sure I read somewhere this isn't advisable on brick walls which may have lime mortar.

For me dot and dab would be so much better for obvious reasons, but on an old house the quickest solution may not be the best .

I'll try and upload some pics

Doozergirl

Modern bonding plaster isn't the right thing either.

You really need to establish what the problem was and give it time to dry out. Guessing isn't great as you risk having to do it again at some point.

Are you not insulating the external walls either? In some cases it would be demanded by building control, but it's no-brainer anyway, imo.

If there's no genuine risk of damp, then I have no issue with dot and dab, but if there is, then breathable insulation and natural line plaster is the way to go.

Doozergirl

Similar recent thread:

https://forums.moneysavingexpert.com/discussion/5990643/victorian-kitchen-plaster-or-plasterboard&highlight=lime+plaster

babyblade41

Doozergirl wrote: »

Modern bonding plaster isn't the right thing either.

You really need to establish what the problem was and give it time to dry out. Guessing isn't great as you risk having to do it again at some point.

Are you not insulating the external walls either? In some cases it would be demanded by building control, but it's no-brainer anyway, imo.

If there's no genuine risk of damp, then I have no issue with dot and dab, but if there is, then breathable insulation and natural line plaster is the way to go.

This is just modernisation of 2 rooms downstairs ... the real work is the extension at the front .

The walls are brick with pebble dash ... I'm trying to add pics bit not having much luck !!

babyblade41

Thanks Doozer... it seems this is what we need once dry

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