The story is as follows...
Flat roof extension, very little insulation in roofspace. Only way to access the space between the joists to place insulation is to pull down the plasterboard. I've done this already in the garden room section where I pulled all of the plasterboard down, then put fresh plasterboard up over the full area. A time consuming expensive mess.
For this bit I am hoping to work a bit smarter and just take sections of the plasterboard down to access each joist run. As I see it I have two options
1. Cut out a square in the middle of each joist run, then replace that square when finished, screwing a lath in to hold it in place, taping the join
2. Cutting a long run of plasterboard across all of the joists, the replacing with a cut new piece of plasterboard screwed/nailed into the joists, taping the joins.
Regardless of the method the ceiling will be skimmed afterwards.
My current thinking is that '1' would be quicker and easier, cutouts will already be the right size to go back in, no need to prise the nails and bits of plaster off the joists, less messy, able to deal with one joist run at a time, but '2' would mean the plasterboard is fixed to the joists rather than to another bit of plastboard, so might be more stable.
Anyone done this before or able to advise on what would be the best way to go?
Flat roof extension, very little insulation in roofspace. Only way to access the space between the joists to place insulation is to pull down the plasterboard. I've done this already in the garden room section where I pulled all of the plasterboard down, then put fresh plasterboard up over the full area. A time consuming expensive mess.
For this bit I am hoping to work a bit smarter and just take sections of the plasterboard down to access each joist run. As I see it I have two options
1. Cut out a square in the middle of each joist run, then replace that square when finished, screwing a lath in to hold it in place, taping the join
2. Cutting a long run of plasterboard across all of the joists, the replacing with a cut new piece of plasterboard screwed/nailed into the joists, taping the joins.
Regardless of the method the ceiling will be skimmed afterwards.
My current thinking is that '1' would be quicker and easier, cutouts will already be the right size to go back in, no need to prise the nails and bits of plaster off the joists, less messy, able to deal with one joist run at a time, but '2' would mean the plasterboard is fixed to the joists rather than to another bit of plastboard, so might be more stable.
Anyone done this before or able to advise on what would be the best way to go?