If your attic is empty other than insulation lay the foil over the insulation.
How to install foil insulation in attic.
This method keeps heat out in summer and heat in during winter months making it ideal for year round benefit.
Attaching radiant barrier insulation to the rafters is the most effective method to employ but both methods have their advantages and disadvantages.
If your attic floor has no insulation install faced batts or faced rolls between each joist with the moisture barrier facing down against the drywall or plaster ceiling below.
Run the unfaced strips perpendicular to the joists and butt each strip tightly together to form an airtight blanket of insulation.
If there is already insulation between the joists increase the r value by installing unfaced roll insulation right on top.
If you have items in your attic that are heat sensitive staple the foil up first then add a second layer over the insulation to get year round results.
Foil insulation installation in an existing attic you can either staple rolls of foil radiant barrier insulation to the rafters or lay the foil out on top of the insulation.
How to install reflective foil in an attic 1.
Starting at one end of your attic install our ultima foil breathable radiant barrier over across attic floor joists.
Make sure that there are no leaks or openings for rainfall to infiltrate the.
Visually inspect the interior roof area.
When laying the foil insulation it is not.
Over insulation method cold or mixed climates create a green energy barrier by laying the radiant barrier foil out over the existing insulation on the attic floor.