If there is already insulation between the joists increase the r value by installing unfaced roll insulation right on top.
How to install foil insulation in attic.
Roll out the reflective foil in a large.
How to install reflective foil in an attic 1.
Visually inspect the interior roof area.
Run the unfaced strips perpendicular to the joists and butt each strip tightly together to form an airtight blanket of insulation.
This method keeps heat out in summer and heat in during winter months making it ideal for year round benefit.
Continue covering the attic floor by overlapping each section of radiant barrier already rolled out by 2 inches.
Starting at one end of your attic install our ultima foil breathable radiant barrier over across attic floor joists.
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.
When laying the foil insulation it is not.
Access the attic and measure the floor space s length and width with measuring tape.
Make sure that there are no leaks or openings for rainfall to infiltrate the.
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.