View Single Post
  #8   Report Post  
Posted to uk.d-i-y
[email protected] edward@pixelstripper.com is offline
external usenet poster
 
Posts: 4
Default insulation under screed - best insulation ?

Thanks for all the info - much appreciated.

I found out the cost of screed from the one and only supplier here.

£66 a ton and an extra fiver a ton for adding fibromesh.
Delivery is £26 an hour with no minimum order.

I was thinking of putting in 50mm of Kingspan K3 (will cost me £139
for enough to do 25m square - this is a quid more than jablite and the
same price as TP10 but K3 seems to have a slightly better U-value than
both these. Says it is a different material than TP10 in the Kingspan
details) which will give me a screed of 85mm (fibromesh and chicken
wire).

Not sure how many tons to order ?!

25m square by 0.085m is 2.125m cubed.

Not sure how heavy screed is per metre cubed... bit over a ton ? So I
need 2.5 tons ?

I ordered concrete for the foundations and slab last year but have
lost all the paper work. Doh.

THink I shifted 8 tons of concrete for the slab in 45 mins with a mate
last time but know that screeding is a bit more precise so will try
and get at least three of us.

How long do you have from unloading to the screed going off? THink
they use LaFarge cement over here which goes off a bit faster than
Portland blue circle.

Cheers for any advice - think I am getting there !
Ed