Working on a late Victorian terrace half-basement and first floor with stone walls and installing a limecrete type screed at ground level for underfloor heating.
Now the walls have had previous attempts at waterproofing up to 1m for rising damp and now we have had to hack some of this away leaving walls with a variety of finishes. We have scraped away the old paint.
Walls are a mix of original lime plaster, some deep filled lime fresh plaster patches and some gypsum multi-finish skim.
Standard practice for gypsum plaster as the primer/stabliser is to use Febond Blue Grit around here.
What preparation do you recommend when overskimming mulitiple surfaces?
1. No Stabilising Grit? there is a product called Limecote recommended for overskimming and it makes no reference to grit stabilisation. Does this really work? with say just an everbuild scrim tape on joints?
2. Stabilising gritted primer? l*m*-g***n Solo One coat (the specified product) recommends Silica MLP2 Solo primer, which is horrendously expensive (£160 for 15m2) compared to say blue grit and even other breathable prodcuts. Any alternatives? Auro have a grit coat primer 506 (£125 for 120m2) . Baumit have a premium primer (£125 for 125m2)
3. Mesh everywhere or just scrim tape? They also have the l*m*-g***n mesh which adds significantly to the cost. is 2 inch scrim tape acceptable instead?
Now the walls have had previous attempts at waterproofing up to 1m for rising damp and now we have had to hack some of this away leaving walls with a variety of finishes. We have scraped away the old paint.
Walls are a mix of original lime plaster, some deep filled lime fresh plaster patches and some gypsum multi-finish skim.
Standard practice for gypsum plaster as the primer/stabliser is to use Febond Blue Grit around here.
What preparation do you recommend when overskimming mulitiple surfaces?
1. No Stabilising Grit? there is a product called Limecote recommended for overskimming and it makes no reference to grit stabilisation. Does this really work? with say just an everbuild scrim tape on joints?
2. Stabilising gritted primer? l*m*-g***n Solo One coat (the specified product) recommends Silica MLP2 Solo primer, which is horrendously expensive (£160 for 15m2) compared to say blue grit and even other breathable prodcuts. Any alternatives? Auro have a grit coat primer 506 (£125 for 120m2) . Baumit have a premium primer (£125 for 125m2)
3. Mesh everywhere or just scrim tape? They also have the l*m*-g***n mesh which adds significantly to the cost. is 2 inch scrim tape acceptable instead?
Last edited:
