So I'm redoing an old (400 years+) building, made entirely of stone masonry + lime mortar.
One of the walls needs reinforcement as it's starting to bow outwards, so we will be using a seismic GFRP net (probably going with premier sismanet/sismawall), which gets pinned to the wall from the inside and sprayed with mortar. Due to the existing masonry, I plan to use a softer hydraulic lime (3.5 probably) to make the mortar (30mm thick).
This has the added advantage of letting the walls/building breathe (vs portland), and not be as humid.
That said, the intention is to finish the interior with steel studs + drywall (with a layer of insulation between).
Part of me thinks it's best to line everything with a DPM before the drywall goes in - but that will do away with the breath-ability of the wall (and may impact the lime's strength, as it needs the CO2 to cure properly over months).
Part of me things, that as plaster is breathable itself, I should just put the steel studs + plasterboard without any DPM, and let the whole thing "breathe".
Thoughts?
One of the walls needs reinforcement as it's starting to bow outwards, so we will be using a seismic GFRP net (probably going with premier sismanet/sismawall), which gets pinned to the wall from the inside and sprayed with mortar. Due to the existing masonry, I plan to use a softer hydraulic lime (3.5 probably) to make the mortar (30mm thick).
This has the added advantage of letting the walls/building breathe (vs portland), and not be as humid.
That said, the intention is to finish the interior with steel studs + drywall (with a layer of insulation between).
Part of me thinks it's best to line everything with a DPM before the drywall goes in - but that will do away with the breath-ability of the wall (and may impact the lime's strength, as it needs the CO2 to cure properly over months).
Part of me things, that as plaster is breathable itself, I should just put the steel studs + plasterboard without any DPM, and let the whole thing "breathe".
Thoughts?