Proper attic insulation is a game-changer for regulating home temperature and reducing energy bills. When soffit venting isn't part of the equation, insulation requires strategic adjustments to ...

They have a very inexpensive Styrofoam or cardboard “baffle” that you slide into place over the soffit vent which prevents any insulation plugging up that air passage. So, that’s it.

Baffles provide a channel for air to flow through certain parts of the attic. Baffles, also called rafter vents or insulation baffles, are made from polyvinyl chloride, rigid foam board, or ...

A great way to avoid this misstep is to use vent baffles — pre-shaped channels designed to allow air to move freely from soffit to roof vent. (One example is this Durovent Rafter Ventilator 70 ...

Attic ventilation can be achieved in a variety of installation methods including installations of soffit vents, mechanical and nonmechanical roof vents, ridge vents and gable vents.

Given the age of your home, I suspect that there is probably a vapor barrier, so the 1 to 150 ratio should suffice. The vent area should be divided equally between soffit and roof (or gable) vents.

In addition, unless insulation baffles are carefully installed in the rafter cavities above the soffits, a vented soffit may be closed off or clogged with insulation, rendering it useless.

A. I used to have similar leaks until I installed baffle vents and a plywood subfloor. After installing the plywood, any snow that blew in landed on the floor, melted, and eventually evaporated.

The standard these days for attic insulation is R-38. That translates into a full 12-inch thickness of blown in or batt insulation. But beefing up the insulation alone may not solve the problem.

Overstuffing Insulation: Packing insulation tightly in the joist space reduces its effectiveness. Ignoring Ventilation: Even without soffits, flow of air is crucial to an unconditioned attic.