Stone Wool Insulation Vs Fiberglass

Their relative strengths and weakness are listed above. The stone wool insulation is slightly more expensive but I did find SafenSound on sale for less than fiberglass.

What S The Difference Fiberglass Vs Mineral Wool Insulation The House Designers

Wool vs Fiberglass Insulation Fiberglass insulation the pink stuff consists of superfine woven and compressed glass fibers that are produced in mass and cut into rolls or batts of insulation.

Stone wool insulation vs fiberglass. Mineral wool insulation or rockwool typically costs more per inch than fiberglass insulation. It has a higher R-value per inch compared to fiberglass about a 22-37 higher R-value. Prices can vary at any time but expect to pay around 010 more per inch for mineral wool versus fiberglass.

With a density over three times that of fiberglass mineral wool has superior sound-deadening properties. The same materials used in batt insulation are manufactured in rolls too. In many ways mineral wool is a superior insulation product.

A while back I asked about adding my 15 thick pieces of mineral wool insulation batts ontop of my 12 thick fiberglass I am installing in my attic. It contains 70 recycled material making it a greener product than fiberglass at 20-30 recycled material. Fiberglass insulation for a 26 wall costs between 57 cents and 72 cents per square foot.

Fiberglass offers an R-value of 22 to 27 per inch while rock wool has an R-value of 30 to 33 per inch making it a slightly better insulator than fiberglass according to the US. In batts offered for 26 walls mineral wool comes in R-23 fiberglass comes in R-19 and again you can special order higher R. This makes rockwool a little better at insulating than fiberglass.

Installing Rockwool and Fiberglass. The first 25 mm 1 in of these materials in a building cavity can increase an assemblys sound transmission class STC value by three or four points in some constructions. General use of rockwool and fiberglass Both materials are versatile and popular choices among constructors.

In batts offered for 24 stud walls mineral wool comes in R-15 while fiberglass comes in R-11 or R-13 although it can be special ordered in R-15 in the US. Fiberglass insulation costs 25 to 50 percent less than mineral wool. Fiberglass has an R-value of 22 27 per inch while rockwool has an index of 30 33 per inch.

By comparison sheep wool may also be cut into batts but this. Its also interesting to note that Owen-Corning is moving into mineral wool insulation manufacture too. Fiberglass insulation for a 26 wall costs between 57 cents and 72 cents per square foot.

Both stone wool and fiberglass share some advantages when it comes to installation. Roxul and fiberglass have similar acoustic properties when compared to similar products. Both types are popular and readily available.

As I have began doing this I am seeing that the fiberglass is so fluffy that throwing on the 15 thick batts weighs the fiberglass down an inch or more. 1Cellulose insulation is regulated by the CPSC as a ﬁre threat Cellulose insulation under certain conditions poorly air sealed moisture-rich cold environment can contribute to corrosion in steel and copper pipes whereas mineral wool and ﬁber glass do not Wet applied cellulose requires up to 36 hours or more to dry out reducing. For example downtime for the two materials is nearly zero in comparison with other insulations like cellulose applied wet and requiring several days to set up prior to encasing behind drywall or sprayed polyurethane foam SPF which demands 24-hour evacuation.

Sound absorbent by nature fiberglass and stone wool insulation significantly reduce sound transmission in wall ceiling floor and HVAC assemblies. Most batt insulation is fiberglass or rock wool stone wool. It starts at about 30 for fiberglass and rises to 43 for rock wool.

What Makes Stone Wool A Smart Insulation Choice This Old House