Boarding Loft.
Discussion
We want to board the loft and at the same time increase the amount of insulation up there.
Roof trusses run front to back at 600mm to centres, I am planning to add an additional layer of floor joists running at 90 degrees to the roof trusses and with 400mm to centres, which will allow me a lay an extra 150mm depth, 370mm wide, insulation over laying the old stuff also at 90 degrees.
Then I plan to lay 2400 x 600 x 18mm floor boards on top of the new joists.
Any issues with this or is it the perfect plan?
Thanks
V.
Roof trusses run front to back at 600mm to centres, I am planning to add an additional layer of floor joists running at 90 degrees to the roof trusses and with 400mm to centres, which will allow me a lay an extra 150mm depth, 370mm wide, insulation over laying the old stuff also at 90 degrees.
Then I plan to lay 2400 x 600 x 18mm floor boards on top of the new joists.
Any issues with this or is it the perfect plan?
Thanks
V.
I should be ok with ventilation as I am not boarding everywhere, basically a 2m strip down the middle (its 2.16 wide) then the same 2m strip either side (they are 2.2m wide) and there is an air brick in the end gable.
I was going to cut down the 2.4m to be 2m to fit down the middle, eve height is over 2m so they should go in ok. the 400mm centres was so I could use the 370mm wide 150mm deep BOGOF Insulation offer at Wickes.
It is a early 70's build, but the internal walls on both floors are block work so I was not to worried about the additional weight, should I be?
Thanks, V.
I was going to cut down the 2.4m to be 2m to fit down the middle, eve height is over 2m so they should go in ok. the 400mm centres was so I could use the 370mm wide 150mm deep BOGOF Insulation offer at Wickes.
It is a early 70's build, but the internal walls on both floors are block work so I was not to worried about the additional weight, should I be?
Thanks, V.
Thanks Sam,
So the idea of using the Kingspan insulted board stuff is better if a little more expensive. In theory it will reduce the weight and stress on the trusses as I will be removing the need for the additional joists and laid onto the existing trusses?
I'll just have to cut it down to widths that will go through the hatch.
Thanks
So the idea of using the Kingspan insulted board stuff is better if a little more expensive. In theory it will reduce the weight and stress on the trusses as I will be removing the need for the additional joists and laid onto the existing trusses?
I'll just have to cut it down to widths that will go through the hatch.
Thanks
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