Hi, I need to rebuild the inner leaf of this little bay window. 1930's house with cavity walls. Previously it had a studwork inner leaf with some haphazardly placed pir boards for insulation, which I had to remove to clear debris from the cavities and around the joists. I will recreate this as it seems the simplest way to insulate this spot and retain the cavity.
How should I go about securing this to what is left of the bricks either side? The right side has unfortunately had a few layers of damp-proofers impermeable cement plaster/slurry followed by regular plaster which I don't really want to hack off as it goes all the way across a few more m of wall. The bricks behind do seem to be holding on to some moisture as well (there was a metal strap securing the previous stud work that attached under the cement which had rusted away to give an idea) so ideally I'd use something to seal the ends of those before filling in the gap to the stud. I'd also knock/grind back the rough edges of the plaster to give myself and edge to board up to.
And what about at the bottom? The joists sit at the level of the original bitumen dpc, which has cracked to pieces as the area has been fiddled with so much in the past so I'll add a new plastic one. I was thinking I could bed this on mortar, then re-lay the bricks and joists on top. As the bricks wouldn't clear the tops of the joists, I could secure some 4x2 to these with masonry screws as a sort of sole plate to which I could then attach the bottom of the studwork. I am concerned that the bond between the mortar and dpc won't really work with only one course of bricks/individual bricks above it though. Any other good options for this? Just screw the studwork directly to the joists?
How should I go about securing this to what is left of the bricks either side? The right side has unfortunately had a few layers of damp-proofers impermeable cement plaster/slurry followed by regular plaster which I don't really want to hack off as it goes all the way across a few more m of wall. The bricks behind do seem to be holding on to some moisture as well (there was a metal strap securing the previous stud work that attached under the cement which had rusted away to give an idea) so ideally I'd use something to seal the ends of those before filling in the gap to the stud. I'd also knock/grind back the rough edges of the plaster to give myself and edge to board up to.
And what about at the bottom? The joists sit at the level of the original bitumen dpc, which has cracked to pieces as the area has been fiddled with so much in the past so I'll add a new plastic one. I was thinking I could bed this on mortar, then re-lay the bricks and joists on top. As the bricks wouldn't clear the tops of the joists, I could secure some 4x2 to these with masonry screws as a sort of sole plate to which I could then attach the bottom of the studwork. I am concerned that the bond between the mortar and dpc won't really work with only one course of bricks/individual bricks above it though. Any other good options for this? Just screw the studwork directly to the joists?
