How To Lay Insulation In Attic

If installing shredded insulation fill the attic space at least 15 inches high with insulation.

How to lay insulation in attic.

Typically this is done either by placing batt or roll insulation in between the ceiling joists or by using a blower to blow loose fill insulation in between the joists. Calculate how much you need. Lay down boards or plywood sheeting to help you be able to walk safely in the attic space. If installing fiberglass mats start by laying the mats at the furthest point from the attic access.

Check pipes and vents. So if you re installing insulation in an attic that doesn t have any used faced insulation and put the paper side down toward the ceiling. Choose your insulation type. Roll the sheets out and cut them perpendicular.

Installing a vapor barrier. Before installing determine the insulation material best suited for your home. The pros often use spray foam insulation or blow shredded insulation. How to insulate an unfinished attic preparing an attic for insulation.

Place planks 1 by 6 or 1 by 8 or plywood sheaths across floor joists to improve. You only want one vapor barrier in your attic and it should be as close to the ceiling as possible to prevent warm moist air from coming up from the heated house and condensing when it hits the cold air in the attic. Continue laying down the insulation making sure the batts are pressed tightly together at all edge and end. Batts and blankets insulation often comes with a vapor retardant facing and some varieties.

To keep the blown in insulation from falling through the attic hatch opening make a 2x12 dam around the hatch perimeter. How to install fiberglass insulation step 1. Lay the batts across the ceiling joists covering the existing insulation. When laying insulation it s a common mistake to cover up the soffit vents.

Then to really seal the attic access up tight says olson lay fiberglass batt insulation on the inside of the hatch or door and wrap it up tight like a christmas present photo 3. While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic. Once the old insulation has been removed and the attic is cleaned the installation of the new insulation can begin.