Is this a good price for a 10-pack?

At $229.90 at Amazon as of November 7, 2026, it works out to about $23 per 8-square-foot board. Only one store lists it new, so there is no recent low to compare against; check local building-supply yards for bulk pricing.

What R-value does 1-inch ProRox give?

Mineral wool runs roughly 3.8 to 4.3 per inch, so a 1-inch board adds about R-4. It is better suited to fire blocking and sound control than to insulating a whole wall.

Can I use it around a wood stove or flue?

Yes. The 680°F maximum service temperature and non-combustible rating suit stove surrounds, pipe shields and penetration fire stops. Keep to local code clearances and the appliance maker's instructions.

Use a serrated insulation knife or fine-tooth saw and press the board flat. Wear gloves, long sleeves, eye protection and a dust mask, and work in a ventilated area.

Does it absorb water?

Water absorption is listed at 1.0 kg/m² or less, so it resists moisture better than glass fiber batts. It is not a vapor barrier; keep it dry and pair it with proper drainage and air sealing.