Hi all,

Does anyone know what size the nozzle is for blown cellulose. I’ll contact some companies over the next few days but thought this is exactly the niche info stored here!

Reason for asking: currently some of the studs are spaced at 50mm or less (around windows) etc so seeing what the best option is here.

While I’m on this.. what have people done when two I-stud panels are joined as this will not allow cellulose infill.

Thank you

2 hours ago, Jonny said:

Hi all,

Does anyone know what size the nozzle is for blown cellulose. I’ll contact some companies over the next few days but thought this is exactly the niche info stored here!

Reason for asking: currently some of the studs are spaced at 50mm or less (around windows) etc so seeing what the best option is here.

While I’m on this.. what have people done when two I-stud panels are joined as this will not allow cellulose infill.

Thank you

Gordon Lewis has done a lot of projects for or around me, and has nozzles down to IIRC 30mm; there's not a nook or cranny that man cannot fill..... His weapon of choice is about 2.5 or 3" for typical areas.

Between the doubled up panels is a bit of an issue, as we always manually fill these types of voids with rockwool, knowing that they cannot be 'blown in' later on. If you have access to these still, then drill pairs of holes every 150mm and fill these voids with expanding foam; in honesty you'll not suffer if these are left unfilled as the losses there will be very negligible in the grand scheme.

11 hours ago, Jonny said:

While I’m on this.. what have people done when two I-stud panels are joined as this will not allow cellulose infill.

We used pre-insulated I-Joists, when they were doubled up

Thank you both, the frame supplier has discussed a refill with mineral wool for the very tight/restricted areas, so that matches with above.

Good to know about nozzle sizes, I’ll give Gordon a call later. Thank you both