160mm PIR Insulation

[Lincolnshire Ian]

My building spec is for 160mm PIR in the floor. This is OK, but I am struggling to find any insulation thicker than 150mm and to keep things simple I would like to avoid using two different thicknesses. 

Does anyone know where I can get 160MM PIR? 

Thanks 

[BotusBuild]

I got mine from the insulation seconds place in south wales.

 

Alternatively, 100mm and 60mm in two layers, or whatever you can buy

[JohnMo]

10 hours ago, Lincolnshire Ian said:

Does anyone know where I can get 160MM PIR

You do two layers with staggered joints. The layers can be equal in thickness or not, it doesn't matter.

[Russell griffiths]

Far better to do two layers and stagger the joints. 
150mm is a pain to cut. 
if it comes bent it’s hard to straighten, two layers would be my choice every time. 

Edited April 19 by Russell griffiths

[Super_Paulie]

2 layers for me. Cutting 50mm compared to 120mm was an absolute dream. Meant I could double secure for air tightness as well as I did that between the layers.

[Nickfromwales]

[Benpointer]

Regarding Seconds and co, they advertise their PIR boards as being 70/80mm or 90/100mm but I want 100mm, not 90mm nor do I want a mixture of 90 and 100mm.  

 

How do I know what I'm going to get?

[JohnMo]

13 minutes ago, Benpointer said:

How do I know what I'm going to get?

You don't

 

Shop around and buy what you want - simple. I couldn't be bothered guessing, or messing about with odds and ends, so I shopped around, bought exactly what I needed. 

[Super_Paulie]

14 hours ago, JohnMo said:

You don't

 

Shop around and buy what you want - simple. I couldn't be bothered guessing, or messing about with odds and ends, so I shopped around, bought exactly what I needed. 

Same. Looked at the seconds & co option and there were too many little things like delivery criteria, sizing "alternatives" etc. I just thought sod it and bought exactly what I needed. Each to their own I guess. 

I bought from Pinks in the end, they essentially just have it delivered from a local supplier they have a deal with as it had Newcastle on the delivery note.