How do we install those rectangular soffit vents under the eaves of our house so that our attic is vented?

Answer 1

Earlier answers have this question just about nailed down.

I'll add this: in most houses, especially ones where there was inadequate soffit vents, there is the insulation issue (in the attic) to contend with. Grab a smaller sized light-weight rake and bring it up into the attic with you. Pull any excess insulation away from where your new soffit vents will be letting cooler air into your attic.

They also sell platic inserts that you can place on top of the insulation to hold it back and retain your air flow.

While your up there, you can assess the amount of air flow that you have from the top of your roof. Ridge vents, air turbines, gable vents, etc. Make sure it about matches the amount of air you are letting in from the soffit vents.

Answer 2

If your installing a series of single vents, cut an opening in the existing soffit, screw vents over hole, and your done. If your trying to install vinyl or alum. vented soffit, refer to the earlier answerer. Either way, if the peak of your house and/or the ridge isnt vented, your soffit vents wont do you much good. Heat rises, and without a point of escape near the top, soffit vents wont help. You must have both for proper venting, 1 or the other just wont do. Good luck, if you need more info, feel free to contact.

Answer 3

run the track along the house side, make sure the track is even
with the fascia bend. once that is in place cut the soffitt pcs
to the width of your opening, start at one end and they slide
together. where the rafter continues to your fascia place a nail
thru the soffit material. If you have wood fascia two tracks are
required, just level them with each other,and follow the above steps

Answer 4

Well you can drill holes into the face plates in the eaves and put covers on them.