Mineral Fiber Insulation Vs Fiberglass

Fiber glass mineral wool vs.

Mineral fiber insulation vs fiberglass.

Fiberglass insulation is less than half the price of rigid foam insulation when calculated by r value per square foot. Mineral wool is a great solution for the firebreaks required at the top of stud walls and for the linear breaks required every 10 along a basement wall. Thanks gregory for the excellent article which should help dispel common misconceptions about mineral wool vs fiberglass. With so many insulation types and sometimes conflicting information on the safety of insulation materials it s vital to weigh the pros and cons.

Both types are popular and readily available. Fiberglass is a non organic product made from melted glass spun into a mat of fine fibers. How they stack up. On a square foot basis mineral wool batts cost more than fiberglass batts.

It costs about about 25 to 45 more than fiberglass but i feel its benefits more than justify the additional costs. When building or remodeling a house the issue of insulation is an important one. Mineral wool is easier to install correctly more water resistant and with a better r value. Determining the final selection is often based on cost temperature range or meeting a certain specification.

Prices can vary at any time but expect to pay around 0 10 more per inch for mineral wool versus fiberglass. Fiberglass has an r value of approximately 2 2 to 2 7 per inch of thickness. Both insulation materials are effective solutions for the insulation of tanks and offer unique advantages and disadvantages. There are at least three brands of mineral wool batts for thermal wall insulation.

The manufacturing process involves taking molten rock and spinning it while blasting it with cool air. The thermal resistance of insulation is measured by what s commonly known as the r value and the higher the r value the better. Fiber glass mineral wool engineered to outperformtm vs. Mineral wool has a slightly higher r value ranging between 3 0 and 3 3 per inch.

Be aware though that. Mineral wool is a stone based mineral fiber insulation comprised of basalt rock and recycled steel slag. Overall mineral wool batts are a much better product than fiberglass. Fiberglass insulation by daisy cuinn hunker may earn compensation through affiliate links in this story.

For example insulating a 10 square foot wall area to r 15 costs about 3 40 to 4 00 with fiberglass insulation while a comparable r value for rigid foam costs roughly 10. Johns manville tempcontrol roxul comfortbatt and thermafiber ultrabatt. Mineral wool is also a non organic product made from volcanic sand melted at.