Strengthening loft joists for flooring

[Jake2021]

Evening,
I asked a question before about strengthening joists however my plans have yet again changed .

Current lost joists are 4x2 running back to front , supporting stud wall somewhere in the middle.

Now I know you can add parallel 6x2/7x2 etc but could I glue and screw some 3x2 4x2 ontop of the current joists making them higher?

Now I know automatically someone will say you should leave a gap
or a risk of the weight cracking the old lat ceiling underneath which I would normally agree however we are lowering the ceilings upstairs by 3 inch and boarding them ( and insulating ) these new studs will be running the opposite way to the current loft joists.

Hope you get what I’m saying lol
Thanks
Jake

 

[RandomGrinch]

but could I glue and screw some 3x2 4x2 ontop of the current joists making them higher?

Thats exactly what I suggested (via Tony1851), in your last post...

New joists in loft

Hi This is my Loft, there’s no Other like it ! Thank Goodness lol any how i Need to strengthen the joists I haven’t got the head height to lay Them Above the old joists so will To go next to them Parallel. The current joists are joined as shown in the picture And these rest obviously rest on...

www.diynot.com

 

[Jake2021]

Hi Random ,
Indeed I recall that… it was more of the thought of my ceiling is getting lowered directly below my current ceiling would that give me adequate strength instead of using 7x2 and reaching the required insulation depth
Thanks
Jake