Target price for 100mm cavity batts.

[epsilonGreedy]

Just wondering if £5.78 + VAT per m2 is a decent quote for glass mineral wool full-fill cavity batts?

 

p.s. (Supply to site, not fitting).

Edited January 15, 2020 by epsilonGreedy

[James94]

Seems ok to me, I’ve been paying £6.10 + VAT per m2 for DriTherm 32. 

[PeterW]

Expensive ....

 

No.1 - I’m assuming that’s Superglass and it’s horrid to work with

No.2 - Earthwool is better and cheaper

 

https://www.wickes.co.uk/Knauf-Earthwool-100mm-Dritherm-Cavity-Slab-Insulation-455-x-1200mm-4-37m2-Pack-8/

 

£4.19 + VAT per swim from Wickes, free delivery over £75 so it’s a no brainier. 

 

2 minutes ago, James94 said:

Seems ok to me, I’ve been paying £6.10 + VAT per m2 for DriTherm 32. 

 

That is very expensive - list price is only £6.35 for DriTherm 37

 

[epsilonGreedy]

Hmm the Drytherm 37 at Wicks is on for a special price at the moment.

 

Drytherm 32 is an extra £8 per pack at Wicks, I also have nagging doubts how they squeeze the extra u-value performance out of the same basic material.

 

I should think some more about this order because I need 260 m2 of the stuff.

[epsilonGreedy]

27 minutes ago, PeterW said:

Expensive ....

 

No.1 - I’m assuming that’s Superglass and it’s horrid to work with

No.2 - Earthwool is better and cheaper

 

 

Not sure about the details of the material, here is the product page.

 

https://www.isover.co.uk/products/cws-32

 

Have to admit the specifics of "earth wool", "superglass" and "glass mineral wool" just go over my head at the moment.

[nod]

I used Buildbase For a large order 

the rep blew everyone else out of the water Including Encon 

As with the slates they stored it at the branch and let me take it as I needed it 

[A_L]

7 minutes ago, epsilonGreedy said:

I also have nagging doubts how they squeeze the extra u-value performance out of the same basic material.

 

There is an optimum relationship between density, size of air spaces and thermal resistance. You should find that 0.032 has a greater density and smaller/more air spaces than 0.037

[PeterW]

25 minutes ago, epsilonGreedy said:

Hmm the Drytherm 37 at Wicks is on for a special price at the moment.

 

Drytherm 32 is an extra £8 per pack at Wicks, I also have nagging doubts how they squeeze the extra u-value performance out of the same basic material.

 

I should think some more about this order because I need 260 m2 of the stuff.

DriTherm 37 is the industry standard hence why it’s cheaper. 

260sqm is 60 packs and I’ve just been quoted £1180 delivered plus VAT for DriTherm 37 

 

[MikeGrahamT21]

18 hours ago, epsilonGreedy said:

Hmm the Drytherm 37 at Wicks is on for a special price at the moment.

 

Drytherm 32 is an extra £8 per pack at Wicks, I also have nagging doubts how they squeeze the extra u-value performance out of the same basic material.

 

I should think some more about this order because I need 260 m2 of the stuff.

The 32 is a denser product, and IMO a much nicer one to work with, cuts nicer