In the staircase leading down to the basement, we have fully plastered walls with both brick and wood as underlying materials. Now, we want to freshen up the descent and have started chipping off the loose plaster. On the brick, the plaster holds well, but on the wood, it comes off easily and is very porous.
At first, I was thinking of applying new plaster over everything once I removed all the loose material, but now I'm considering whether it might be smarter to build out with wood/board material over the wood and only touch up the plaster on the brick. Where the different materials meet, I'm thinking of using a flexible sealant.
Does anyone have an even smarter solution perhaps?
The house is from 1884-1885 so we've otherwise learned to live with cracks and warps.
2. Cut a timber piece to the same thickness as the plaster. Screw it onto the wood. A strip of hardwood on top, but a bit wider. To rest against the timber/remaining plaster.
3. Nail a number of galvanized nails so that the heads lie a few mm below the current plaster level. Plaster. Nail heads will hold the plaster in place.
Hi
Maybe a late reply, but you should use clay plaster on timber and lime plaster on bricks.
Place a fine mesh over the joint between the different materials to avoid cracks.
Recipe for clay plaster:
1 part clay powder
3 parts sand
1 "handful" flax hack
a little wood shavings
water to the right consistency.....
Apply in two layers
The clay should not go over the brick, however, the lime plaster can go a little over the timber.
Lime plaster is bought in a bag and mixed with water.
