Well what a pain in the ass job that was. It’s not quite finished, but we’ve finished enough for now and got it done just as temperatures are starting to dip below freezing. The walls, which were looking pretty rough, now look fairly respectable and should keep the old girl standing for another century.
The prep took the longest, which included chipping off all the old plaster and any loose stuff (that took weeks on and off), removing the layer of rubble on top of wall, vacuuming all the walls and spraying them down etc. It doesn’t sound a lot but it took a while.
By the way we spray the walls down before we parge so the dry stonework doesn’t suck too much water out of the mortar and cause it to dry too fast. Next week we’ll spray all the parged walls daily which will help the cure – lime needs moisture and CO2 to cure.
Concerning the rubble at the top of the walls we think that was done later as the mortar was of a poor quality and pretty much crumbled in your hand. It was probably added as some sort of insulation but as it wasn’t structural we removed it all and will replace it with Rockwool. It was a bit tricky to get some of the stones out as they were tightly wedged and some of them weighted at least 70 lbs, not the easiest of things to get down when on the top of a step ladder.
Removing the rubble also exposed the beams resting on top of the wall, some of which had a fair amount of rot in them so we’ll fix these up before covering them up again. All the stone can go into our foundation drain, saving the largest pieces for a possible future rock garden.
Next job will be cleaning everything up and putting away all the cables, air hoses and tarps as we’ve made quite a mess. Incidentally the way this project will hurt us if we’re not careful is via a trip hazard, pretty much every day one of us will catch our foot on a cable, air hose or the edge of a tarp etc., so far we’ve managed not to fall.
Fortunate that we finished the project this past weekend as yesterday, Monday, temperatures were getting as low as 23°F and we need to keep the lime above 40°F for a minimum of three days. I was a bit worried today as it started snowing but when I got to the house the inside temperature was still around 45°F, phew, our two little fan heaters are making a difference.
Aimee was pretty pleased with how the parging went as she thought we had passed a point, with the walls all fixed up and covered, DM is starting to look like somewhere where you could actually live.