Hi all,
I am looking to board up the loft to a good standard ("proper" and all).
Everyone recommends - in order to hold the insulation to raise the floor before boarding.
And the best way is to do this is to screw cross-battens into the ceiling joists - (2" by 4" timber battens have been recommended).
I understand that the insulation shouldn't be squashed by the boarding or it will just carry moisture and not actually act to insulate the house.
The knauff insulation sitting on top of the joists are around ~170mm thickness(6+inches).
- So i was looking to use 2" by 6" timber as cross battens instead.
Questions
1. Will 2" x 6" timber be too heavy for cross battening the original ceiling joists.
My carpenter said 2" by 6" timber might be too heavy - My initial thought wouldn't you need at least this depth for a full loft conversion??
My original ceiling joists are 2" by 4" timbers, around 13inches apart.
2. If I use 2" x 6" timber
Can I screw directly vertical into the ceiling joists?
If so would these be the best screws?
https://www.screwfix.com/p/spax-yellox-pz-countersunk-woodscrews-6-x-180mm-100-pack/45097
Or would i need to use joist hangers or screw diagonally into the joists?
3. How far apart does each timber batten need to be.
I was thinking - one every strip of insulation roll (so arround 20" apart) - is this overkill?
The loft space is around 22 Foot X 13 Foot.
I plan to board 19 Foot X 11 Foot (leaving the sides to breath).
Any help would be greatly appreciated.
Raj
I am looking to board up the loft to a good standard ("proper" and all).
Everyone recommends - in order to hold the insulation to raise the floor before boarding.
And the best way is to do this is to screw cross-battens into the ceiling joists - (2" by 4" timber battens have been recommended).
I understand that the insulation shouldn't be squashed by the boarding or it will just carry moisture and not actually act to insulate the house.
The knauff insulation sitting on top of the joists are around ~170mm thickness(6+inches).
- So i was looking to use 2" by 6" timber as cross battens instead.
Questions
1. Will 2" x 6" timber be too heavy for cross battening the original ceiling joists.
My carpenter said 2" by 6" timber might be too heavy - My initial thought wouldn't you need at least this depth for a full loft conversion??
My original ceiling joists are 2" by 4" timbers, around 13inches apart.
2. If I use 2" x 6" timber
Can I screw directly vertical into the ceiling joists?
If so would these be the best screws?
https://www.screwfix.com/p/spax-yellox-pz-countersunk-woodscrews-6-x-180mm-100-pack/45097
Or would i need to use joist hangers or screw diagonally into the joists?
3. How far apart does each timber batten need to be.
I was thinking - one every strip of insulation roll (so arround 20" apart) - is this overkill?
The loft space is around 22 Foot X 13 Foot.
I plan to board 19 Foot X 11 Foot (leaving the sides to breath).
Any help would be greatly appreciated.
Raj
