Do not use plastic sheeting in this case.
How to properly insulate attic rafters.
If the plastic sheeting is in pieces overlap the pieces by 8 inches and staple it in place directly to the roof rafters and the wall.
To cut blanket style insulation place the product over a piece of plywood with its paper or foil side down.
You can use rigid foam panels or do as tom silva does with nearly all houses these days.
If you re considering turning your attic into conditioned storage or living space it s worth changing tactics to insulate between the rafters and wall joists instead of the floor.
Lay a two by four on top temporarily compressing the insulation to a manageable.
To effectively ventilate your roof create a 1 in.
Use 3 8 inch heavy duty staples every six inches.
Minimize thermal bridging and reduce heat loss through the foundation.
If there is a floor you will need to remove it to properly insulate the roof rafters.
Attach the insulation to the rafter scab board by the paper flange so as not to compress the fiberglass.
How to insulate an unfinished attic preparing an attic for insulation.
Hire a pro to install spray foam insulation.
Make the foundation part of the thermal mass of the conditioned space thereby reducing.
Place the plastic sheeting on top of the rolled insulation.
To install the air chutes staple them directly to the roof decking.
Staple them directly to the roof decking for better insulating roof rafters.
To install insulation.
Installing a vapor barrier.
Install ventilation baffles into the space between the rafters before you install the insulation usually by stapling into place.
How to install rafter insulation.
Protect the damp proof coating from damage during backfilling.
Garages built without attics are.
Provide some protection against moisture intrusion.
Staple it to the rafters or scabbed on boards with a staple gun so that the paper backing is toward the interior of the room to act as a vapor barrier.
Place planks 1 by 6 or 1 by 8 or plywood sheaths across floor joists to improve.
Batts and blankets insulation often comes with a vapor retardant facing and some varieties.