How much to insulate 64 sq metres?

A neighbour's flat has no insulation in the roofspace. Their lease is for 999 years and so the landlord is not going to put any insulation in!

My main question to you DIY regulars is:

VERY APPROXIMATELY, HOW MUCH WOULD LOFT INSULATION COST TO COVER

64 SQUARE METRES ?

Payless and B&Q's websites are impossible to use to find the price of a single roll. And I can't easily work out the true area to be covered because there are joists (is that what they are called?) in the loft.

A coupl eof years ago I saw some pink loft insulation which seemed to be made in such a way that it was a lot "friendlier" (less problems with skin and repisration as it as softer and more flexible) than the insulation I saw about 15 years ago.

QUESTION: Does this reflect a new minumum standard for loft insulation or have the regulations changed and this is the minumum quality permitted for sale?

QUESTION: Would a top floor flat which is occupied 24 hours and heated by gas central heated be likely to recover its costs in a single winter? My neighbour may not stay for two years and doesn't want to spend time and money of it is not worth their effort.

Thank you.

Reply to
JS
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I got some in B&Q that was encased in plastic film - orange one side and reflective aluminium the other. Available in a range of thicknesses and very easy to handle. The width should coincide with the gap between joists - so all you need calculate is the length. I paid half the 'standard' price so it's worth checking for offers.

Reply to
John Cartmell

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