On a warm day attics can get dangerously hot.
How to get to thw edge of the attic.
You want a nice big puffy pillow of insulation to stop any air leaks says olson.
Start by using a chalk reel to snap two parallel lines down the center of the soffit.
They call this a venting drip edge.
Heat also makes shingles easy to damage.
You first have to locate your attic crawl hole or attic door then you have to fi.
First determine your attic area by multiplying the length by the width.
Repeat the cut on the.
While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic.
Cut the drywall straight across between the two joists connecting the ends of the two cut lines on the far edge of the attic access hole.
Space the lines 2 in.
In of vent opening per 150 sq.
Remove the loose section of drywall.
How many vents do you need.
One great alternative to a soffit ventilation system is to install an intake vent right at the lower edge of the roof.
That will allow the vent to overlap the cutout by in.
Cover the attic hatch with a pillow of fiberglass insulation.
Lay the batts across the ceiling joists covering the existing insulation.
Continue laying down the insulation making sure the batts are pressed tightly together at all edge and end joints.
A 30 x 40 ft.
A cool day is best.
Attic for example has an area of 1 200 sq.
The venting drip edge seems to be the easiest and most common way to go.
Cut two layers of r 19 fiberglass batt insulation slightly larger than the hatch and staple duct tape to the hatch edges to secure it in place.