From polystyrene. Rockwool thermalite blocks per inch thickness or is there something better
2007-03-22 02:21:29 · 5 answers · asked by noddy 2 in Home & Garden ➔ Maintenance & Repairs
They all have an R rating or similar, the higher the R rating the better the insulation. 20-22 is very good.
2007-03-22 02:25:09 · answer #1 · answered by Del Piero 10 7 · 1⤊ 0⤋
Take a look at this site:
http://www.rvalue.net/
They discuss the R value which is the relative insulation value of several materials. Thickness is not an indicator of good insulative value.
My experience has been helping my parents blow in Rockwool after theirs had settled after being in the house for many years. This is not an uncommon occurrence.
2007-03-22 02:27:23 · answer #2 · answered by AuntLala 3 · 2⤊ 0⤋
With any type of insulation - the higher the R value, the better.
2007-03-22 03:34:18 · answer #3 · answered by Julie F 4 · 0⤊ 0⤋
r= resistance to heat , higher # heat passes slower through it
people hate rock wool, but it's better than fibergless r value
that spray foan is great , but you can't afford it...same with the blown blanket fiberglass
batts & blow - rockwool , cellulose - ( chewed up newspaper-I wouldn't ), fiberglass
2007-03-22 03:34:47 · answer #4 · answered by Bonno 6 · 0⤊ 0⤋
what are you tring to insulate
2007-03-22 02:27:53 · answer #5 · answered by biloguide 4 · 0⤊ 0⤋