What is ventilation baffles?

Baffles are installed in the attic (or should be), wherever there is an intake vent (soffit vent). Baffles ensure proper airflow into your attic space. Baffles prevent vents from getting clogged by insulation and ensure a clear channel for outside air to move into the attic through soffit vents.

Do you need vent baffles?

Attic baffles, or rafter vents, are an essential part of keeping your home well-ventilated and reducing the moisture on top of your house. If you want a well-ventilated attic that doesn’t regularly grow mold for you to remove, you’ll want to make sure your home is properly aired out.

How many baffle vents do I need?

The first step in determining how many rafter vents your home needs is to determine your home’s vent space in square feet. The general rule is that you must have one square foot of vent space for every 150 square feet of attic area.

Are cardboard baffles good?

The foam baffles hold up in Michigan’s humidity, whereas cardboard baffles can absorb moisture causing them to fall and be ineffective. In addition to offering airflow in your attic space, baffles keep attic insulation off your roof deck, which is especially important for cold Michigan winters.

How do you tell if attic is properly vented?

How to determine whether you need better attic ventilation

1. Look at your eaves and roof.
2. Touch your ceiling on a warm, sunny day.
3. Thick ridges of ice on your eaves in winter are a sign of poor attic ventilation.
4. Warm air that escapes living space also carries moisture that will condense on rafters or roof sheathing.

Can insulation touch the roof?

Attic insulation should not touch the roof. Although it can be tempting to over insulate, resist the urge. Too much insulation hinders airflow and can keep excess moisture from escaping, especially in attics.

Where should attic baffles be installed?

To install the rafter vents, staple them directly to the roof decking. Rafter vents come in 4-foot lengths and 14-1/2 and 22-1/2 inch widths for different rafter spacings. Rafter vents should be placed in your attic ceiling in between the rafters at the point where your attic ceiling meets your attic floor.

Are rafter baffles necessary?

Rafters. If you want to insulate the rafter bays rather than the attic floor in order to make the attic a heated space, baffles are even more important for proper air circulation. Baffles establish a channel for air to circulate between the insulation and the roof sheathing.

What is an integrated baffle ventilation system?

The ventilation system features polystyrene construction, which is lightweight and moisture resistant. The integrated baffle has a built-in baffle meaning you don’t need additional blocking material at your top plate. Air is channeled up and through the vent- passing through your insulation toward your exhaust vent.

What is a durovent baffle?

Installation of the Durovent Baffle eliminates the need for using a blocking material such as batt insulation between the vent and the wall top plate, as is commonly the practice for installation or rafter vents without an integral baffle. Designed to friction-fit between the rafters or trusses with the vent’s cones pushed up against the roof deck

What is the best type of vent for a new construction?

Ideal vent for new construction. The extruded polystyrene material provides a lightweight water resistant air channel through your insulation. Improves insulation efficiencies by allowing for cooler attics in the summer months, drier attics in the winter months and helps prevent ice-dam formation.

What is the construction of the ventilation system?

The ventilation system features polystyrene construction, which is lightweight and moisture resistant. The integrated baffle has a built-in baffle meaning you don’t need additional blocking material at your top plate.