See below for a shopping list and tools.
How to add roll insulation to attic.
Laying rolls of blanket insulation.
Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used.
Insulation level are specified by r value.
Start in a corner away from the attic hatch and fit the roll insulation between the joists facing against the drywall.
The table below shows what levels of insulation are cost effective for different climates and locations in the home.
To install fiberglass batts over existing insulation lay the batts perpendicular to the joists so they do not compress the insulation below.
So it s time to pay close attention to what s happening up there.
Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.
To add insulation to the attic floor you will require enough blanket material to do the job a heavy duty shop vacuum plastic sheeting for covering the blanket material that will insulate the attic opening a heavy duty staple gun and utility scissors with long blades.
The higher the r value the better the thermal performance of the insulation.
By reducing energy.
Attic hatch or door.
Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.
Add weatherstripping around the perimeter and a sweep to the door of a walk up attic.
Affix rigid foam insulation to the attic side of the hatch or door.
Whether you live in a warm weather state as i do or in a cooler northern climate it s hard to stay comfortable and keep your energy bills in check if you don t have adequate insulation in the attic.
R value is a measure of insulation s ability to resist heat traveling through it.
This old house general contractor tom silva and host kevin o connor demonstrate the proper way to insulate an attic.
Pull down stair or ladder.
By adding insulation to your attic you ll not only reduce your monthly utility bills but also enjoy improved energy efficiency and greater comfort throughout the year.