Rich wrote:

I am debating weather to use the Kingspan 8'x 4' sheets or
the Rockwoll roll 100 x 400 to insulate a suspended timber ground
floor.

I have looked on the repsective websites for these manufacture's and
cannot find the answer.
The Kingspan references U-Values but these mean nothing to me!

What would give me the best results bearing in mind the cost
difference per m^2.
Roughly half the price for Rockwool!



If you have the depth ise the wool, teh kingspan is superior in terms of
insulation per unit depth, so is used where depth is limited.


Regards,
Rich