Use this attic stair insulator to close the biggest gap in your home's insulation
Seal your attic door access from heat loss and cold drafts with DraftCap.
If your home has a pull down attic stair or uninsulated attic entry door, you are vulnerable to heat loss during colder months. Typical attic entry doors are not adequately insulated and since they don't seal tightly, you can experience a "chimney effect" with cold air spiraling out of your living area.
Since it is impossible to roll fiberglass insulation over your attic door once it is closed, Draft Cap is your solution. Draft Cap eliminates drafts as well as providing R-11 protection, giving you a "1-2 punch" to dramatically lower heating costs. With it's light weight, DraftCap can be easily slid out of the way for access to your attic without the need for tools; and it slides easily back into place when you're done.
Installation of this durable polystyrene foam product takes less than 5 minutes and can save you on average $19/month in heating and cooling costs. Click for PDF Report.
The draft cap is rated as having an R11 insulating value. Its "one size fits all" design means it accommodates nearly any home's attic entry, and it works with 2x6, 2x8, 2x10 and 2x12 ceiling joist sizes.
Increase the energy efficiency of your home and lower your utility bills with Draft Cap.
Draft Cap Details
- Fits a standard 25.5" x 54" R.O. opening.
- Outside dimensions approximately 31" x 59.5" x 10.5"
- Underside clearance is 7-7/8"
- Weight is approximately 7 lbs.
- May be used in 2x6, 2x8, 2x10, and 2x12 attic ceiling joist construction
- Has a wall thickness of 2-3/4"
- Constructed of dust-free expanded polystyrene (EPS) foam
- Made in the USA under Patent Number 6,966,153
To easily check if Draft Cap will fit, simply pull the attic hatch down so that it is roughly at a 45 degree angle. Then step around the back side of the door and measure just the plywood door or panel (not the molding.) If this measurement is in the vicinity of 24" x 52", then you have a standard-size pull-down stair unit and Draft Cap will fit perfectly.
DraftCap Assembly and Installation Step by Step Instructions
DraftCap ships in two sections which are quickly and easily assembled. Download the DraftCap assembly and installation instructions here.
Draft Cap Specifications
|Insulation Value ||R-11|
|Opening size ||25.5 x54" R.O. opening|
|Outside dimensions ||31" x 59.5" x10.5"|
|Weight ||7 Lbs.|
|Wall Thickness ||2-3/4"|
|Material ||dust-free expanded polystyrene (EPS) foam|
|Country of Manufacture ||USA|
|Patent Number ||6,966,153|