cutting rockwool/glasswool insulation

[barkwindjammer]

What is used to cut rockwool insulation-without making candy floss

 

[houtslager]

a big serrated bread knife is the best.

hs

 

[Rich]

I use wallpaper hanging scissors.

Rich.

 

[MikeG.]

Stanley knife, with a board underneath. You only have to cut it to length, as the rolls pull apart to standard widths.

Mike

 

[studders]

Stanley knife, with a board underneath. You only have to cut it to length, as the rolls pull apart to standard widths.

Mike

Not much good when your joists were done by 'Dead Eye ****' who never felt the need to measure things. In which case I found the best method was to use a panel saw and cut to width while the roll was still in the wrapping, then cut to length as above.

 

[jasonB]

When using the stanley knife use a straight edge on top of the insulation to compress it then the knife will go through easily, it can be done freehand but its easier with a straightedge until you get the hang of it.

Jason

 

[monkeybiter]

I've tried a saw and I've tried scissors, found scissors to be easier and much less messy.

 

[MikeG.]

I've tried a saw and I've tried scissors, found scissors to be easier and much less messy.

When are you going to try the correct tool..........a knife? Anything else is just complicating matters.

Mike

 

[barkwindjammer]

Gave Mike Garnhams method, board underneath, board on top to compress the mat-stanley knife-worked a treat, thanks for the info guys