The ceiling joists are 4.2m in length and 4 x 8.5cm in dimension- the house is circa 1910. The house is 5m wide and 8.4m in length.
The joists meet on a supporting wall in the middle of the house.
I have removed the existing lathe and plaster ceiling so all that's left are the joists.
Will these joists be able to support plasterboard that is being skimmed as well as the loft being boarded out with p5 chipboard ontop?
So thats roughly 40sqm of plasterboard and skim. So that is 14 sheets x 25kg = 350kg
Plaster is about 6 bags to cover at 3mm so thats another 6 x 25 = 150kg
Total of 500kg
I am only boarding out the central half of the loft - so 20sqm.
That will take 14 loft boards at 17kg each for a total of 238kg plus 120 loft legs - (1kg each?) so 120kg for the legs plus 238kg for the boards is 358kg.
So plasterboard is 500kg plus loft boards and legs is 358kg for a total of 858kg
There are 15 ceiling joists.
So 858/15 = 60kg per joist?
The joists meet on a supporting wall in the middle of the house.
I have removed the existing lathe and plaster ceiling so all that's left are the joists.
Will these joists be able to support plasterboard that is being skimmed as well as the loft being boarded out with p5 chipboard ontop?
So thats roughly 40sqm of plasterboard and skim. So that is 14 sheets x 25kg = 350kg
Plaster is about 6 bags to cover at 3mm so thats another 6 x 25 = 150kg
Total of 500kg
I am only boarding out the central half of the loft - so 20sqm.
That will take 14 loft boards at 17kg each for a total of 238kg plus 120 loft legs - (1kg each?) so 120kg for the legs plus 238kg for the boards is 358kg.
So plasterboard is 500kg plus loft boards and legs is 358kg for a total of 858kg
There are 15 ceiling joists.
So 858/15 = 60kg per joist?