How To Hang Insulation In Attic

After you finish blowing the insulation you ll need to build box on top of the attic access hatch to avoid any heat escaping through it.

How to hang insulation in attic. Use fireproof caulk to seal up cracks holes and openings around all penetrations such as pipes ducts and cables. However you must complete an important step before installing any insulation. The higher the r value the greater the insulation performance. For this reason faced insulation is typically installed on the.

The r value of the batt measures the thermal resistance so the higher the r value the more effectively. In this video this old house general contractor tom silva and host kevin o connor explain how to insulate an attic. The purpose of insulation facing. Here s a handy chart.

Choose fiberglass insulation batting. Lay the batts across the ceiling joists covering the existing insulation. Blanket type insulation comes in two forms. Then fill the box with insulation and close the hatch.

To this you can simply build a box that matches the perimeter of the opening and is the height that you filled your insulation to. Rolls and batts either of which is a good choice for insulating interior open stud walls. If you don t have an attic however there is no alternative but climb a ladder and do it by hand before you hang the drywall. Because it is forced through a tube and blown into space loose fill is best suited for unfinished attics and hard to reach areas.

You ll want to check your local code for the insulation recommendations in your zone. Loose fill and blown insulation. While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic. Covers topics from hatches to ventilation baffles and provides links to publications and videos for more information.

This necessitates professional installation however. The facing on kraft faced insulation is made of kraft paper with an asphalt coating that makes the paper impermeable to water vapor. There are various grades of insulating batting for different locations in the house so you ll need a different insulation for interior exterior attic or basement walls. It covers specific information on attic insulation and ceiling insulation that will assist with proper installation to meet resnet grade 1 criteria for fiberglass and mineral wool batt insulation.

The paper creates a vapor barrier that helps keep the water vapor in the warm moist heated indoor air from migrating outward into the wall or other structure. The grade of batting will vary depending on the wall that you re insulating. For our area r 13 batt insulation is recommended for interior walls and r 38 for attics since we need the extra shield from the extreme heat and cold coming from our attic.