Which Kit Do I Need? – Ladder, No Trusses
Now, let’s take a look at how much room you have. Measure the length and width of your opening along with the clearance between the attic floor (if no flooring, measure from floor joists) to the roof or any obstruction above.
The Energy Guardian® Standard Pull Cover with an R-38 insulating value (PS1-38-11A)
The Energy Guardian® Standard Pull Cover with an R-20 insulating value (PS1-20-11A)