STOP Costly Energy Drain! with a Therma-Dome Attic Stair Cover
THERMA-DOME ATTIC STAIR COVER is designed to help block the escape of home heating dollars in the winter and to provide greater comfort and reduced cooling costs during the summer.
Constructed of 1 ½” thick polyisocyanurate foam insulation board sandwiched between layers of laminated foil, THERMA-DOME is a quality engineered product designed to last as long as your home. Its cellular foam core gasket provides a continuous seal and stops costly energy drain.
Specified and used in many energy conservation programs nationwide, the use of THERMA-DOME can help conserve enough energy to pay for itself in just one year.
Continuous foam core gasket

THERMA-DOME attic stair cover comes in an easily assembled kit, which includes six lap joint components, a tube of adhesive, foil tape, and step-by-step instructions. Equipped with only a caulking gun, scissors and a hammer, you can assemble and install this money saving stair cover in approximately fifteen minutes. Each THERMA-DOME comes with a warranty, which covers replacement of any defective parts or component within one year of the date of purchase.

Kit includes:

  • 6 lap-joint foam components
  • 1 tube of adhesive
  • 1 roll of foil tape
  • 2 mounting staples
  • step-by-step instructions

  • Six lap joint components easily assemble in about 15 minutes
    YEAR-ROUND SAVINGS
    UTILITY TESTED & APPROVED
    DURABLE CONSTRUCTION
    LIGHTWEIGHT FOR EASY PLACEMENT AND REMOVAL
    FITS ALL ATTIC STAIRS
    SPECIFICATIONS
  • Insulation R-value 13
  • Inside Dimensions 27" x 57" x 10.5"H
  • Outside Dimensions 30" x 60" x 12"H
  • Actual Carton Weight 12 lbs.
  • Yankee Insulation Products
    Bedford Rd, New Boston, NH 03070 • Tel. 603-487-2400
    A division of
    Yankee Shutter Company
    Established 1961