
Insulating Your Attic Is Easy!
You can do it yourself in an afternoon. And it's surprisingly affordable.
Use this handy checklist to determine what you need before you head to the store, and for helpful hints during installation.
What You Need
Insulation
How much?
Use our Insulation Calculator to find out.
Batts or Rolls?
Most people use rolls. They're easier to transport and get into the attic.
Faced or Unfaced?
Faced - If no existing insulation (install the faced side down)
Unfaced - If adding to existing insulation
Basic Tools
- Lightweight, squeeze-type stapler
- Straightedge or 2 x 4 (for scoring and/or cutting)
- Tape measure
- Utility knife
- Portable work light
- Pole or rake (to push insulation into tight spots)
- Work gloves
- Loose-fitting, long-sleeved shirt
- Safety glasses
- Dust respirator mask
What You Need to Know
Installation Tips
- Use boards or sheets of plywood for sitting/kneeling and for cutting insulation.
- Begin installing at the outer edge of the attic and work toward the center.
- If your joist cavities are already filled, lay the new insulation in long runs perpendicular to the joists. Use leftover pieces to fill small spaces.
- If your joist cavities are not completely filled, fill them first with the appropriate thickness of insulation. Then continue as directed above.
- Unfaced Fiberglas™ insulation will not burn, but can cause heat-producing devices to overheat, which can be a fire hazard. Leave at least three inches between insulation and recessed lighting, metal chimneys, gas water heater flues, or other heat-producing devices. ONLY recessed lighting fixtures rated I.C. (insulated ceiling) are designed for direct contact with insulation.
- Areas around masonry chimneys, however, may be stuffed with small pieces of unfaced insulation.