cheap loft insulation

**DrGreen** · 11-02-20, 07:36 AM

I need to do 1 last grow before i move house . How can i insulate the loft without spending big on kingspann etx?

Lookin at all options but i got 5x4m to insulate some how ?

**Murdock** · 11-02-20, 07:45 AM

Just try polystyrene sheets 25mm or 50 , they’ll do the job

**Slazenger** · 11-02-20, 09:50 AM

Rockwool probably cheapest option but it's pants. Look on your local Facebook market place. Always a building site getting rid of kingspan for usually half price.

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**British green** · 11-02-20, 10:25 AM

Old fashioned rock wool and plasterboard
It's good insulation soundproofing and fire retardant

in a green and pleasant land

**DrGreen** · 11-02-20, 03:10 PM

Originally Posted by British green

Old fashioned rock wool and plasterboard
It's good insulation soundproofing and fire retardant

in a green and pleasant land

Any in mind ? Like how thick does it need to be under the plaster board.
Take it ya fill the beams to the tiles sheeting. And board it off ye ?

I looked on facebook they also say the kingspan isnt fire retardant so wil go up in smoke...
Rockwool doesnt i dont care how fiddley it is if i saves me cash

**British green** · 11-02-20, 03:17 PM

Originally Posted by DrGreen

Any in mind ? Like how thick does it need to be under the plaster board.
Take it ya fill the beams to the tiles sheeting. And board it off ye ?

I looked on facebook they also say the kingspan isnt fire retardant so wil go up in smoke...
Rockwool doesnt i dont care how fiddley it is if i saves me cash

I'd personally leave a air gap between slates and insulation of around 50mm this will allow the roof to breathe

in a green and pleasant land