Additional fixing for PIR to inner leaf?

[tommyt11]

What are others' thoughts on the efficacy of PIR retaining clips. I have anecdotal evidence from someone about them working lose over time thus leading to draughty gap between inner leaf and PIR.

My wall build up (just starting) is: 100mm Thermalite, 150 gap with 100 PIR batts, 125 cotswold stone. I will say in advance that I have an excellent blockworker who is a stickler for detailing, knocking snots off, etc. He already beat me to the punch on foil taping all PIR joints (assumed I'd have to nudge on that).

I was going to start a convo with him re: sticky foaming the PIR to inner face as they work, as well as the retaining clips on wall ties of course. Overkill?

 

Cheers

Tom

[nod]

They won’t work loose 

It’s more about how well they are fitted and taped

You can always get them to lap the tape over the plastics So tgat when they rattle them they won’t move 

[Moonshine]

I havent heard of this being an issue. 

 

If you think it is, how about a blob of pink grip on the clip / tie connection.

 

Or as nod says tape this connection