Blanket vs bat insulation

Blanket insulation

Blanket insulation is the category name. It refers to insulation that comes in flexible sheets or rolls.

• Usually made of fiberglass or mineral wool

• Sold in rolls or pre-cut sections

• Designed to fit between studs, joists, and rafters

👉 Batt insulation is actually a type of blanket insulation.

Batt insulation

Batt insulation is blanket insulation that’s pre-cut into standard sizes.

• Sized to fit common stud spacing (like 16" or 24" on center)

• Faster and easier to install than rolls

• Common in walls, ceilings, and floors

• Often has paper or foil facing (for vapor control)

Roll insulation (the other blanket type)

Also part of blanket insulation:

• Comes in long continuous rolls

• Can be cut to length on site

• Better for long, uninterrupted spaces (like attics)