My house was built with bricks in 1814. Most of those bricks are still sound but a few are badly spalling (spaling, spalding, spallding?). I do have a large supply of period bricks (from an interior wall in the basement). The worst of the bricks I will chip out and replace, but there are large areas near the foundation where ALL the bricks are spalling. I'd like to just parge coat around the whole house up to about 3 feet. Is this a good idea?
1. what kind of mortar should I use around the replacement bricks?
2. is parging spalled brick a bad idea? if not what is the pest method of doing this/best product to use?
3. is there a clear finish/sealer I can put on the entire wall after the parge coat that will let moisture in but not out?
4. should I hire a local bricklayer to have a look at the place and tell me what to do?
this is in Sudbury Ontario (we get short hot summers, long cold winters and A LOT of snow).
a friend had recomended spraying with Tompson Water Sealer but said that would only be a temporary measure and I'd have to re-do it at least once a year.