Mineral wool rolls: the standard for loft floors
Most lofts we do get mineral wool rolls: one layer between the joists, a second across them. Good value and easy to lay to full depth.
Illustration: mineral wool laid on the loft floor
| Comes as | Rolls, usually 100 mm and 170 or 200 mm thick |
|---|---|
| Laid | Between the joists, then across them |
| Total depth | Around 270 mm commonly recommended |
| Best for | Almost every loft floor |
| With storage | Add a raised floor so it isn’t squashed |
How it’s laid
A thinner roll fills the gaps between the joists. A thicker roll goes across the top at right angles, covering the timber. Together they reach the depth that’s commonly recommended.
With storage
Mineral wool only works when it’s fluffy. Boards on top squash it, so if you want storage we fit a raised floor on legs.
Handling
It can itch while it’s being handled, so we wear protection. Once laid and left alone, it settles and stays put.
Common questions
Can you measure my loft and quote?
Yes. The quote is free and in writing, with every part priced.
Why two layers?
Joists are only around 100 mm deep. The second layer covers them and makes up the depth.
Full depth below. Room to store above. Get a price.
Tell us about your loft and we’ll quote the insulation, boarding and ladder in writing. Free, no obligation.