Should you insulate eaves?

To answer simply: no, your soffits should not be insulated, and there is a chance that your insulation has been damaged by this. On a positive note, congratulations on having 24-inch eaves.
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Do you insulate the eaves of a house?

It's not necessary to have the entire attic lid insulated with spray foam, but having spray-foam insulation installed at the eaves is a great way to help compensate for the lack of space at these locations.
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Should I insulate in the overhang?

A cantilevered overhang can create more space in your home, but it also must be insulated properly to make your home more energy-efficient.
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Should soffits be covered with insulation?

Soffit vents are the openings located on the underside of your roof's eaves. They are designed to allow air to flow into your attic and help keep it cool. You should not cover soffit vents with insulation, as this will prevent the air from flowing and could cause moisture damage to your insulation.
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Do you put insulation over soffit vents?

The most common mistake homeowners make when installing insulation is to block the flow of air at the eaves. NEVER COVER ATTIC SOFFIT VENTS WITH INSULATION — use rafter vents and soffit vents to maintain airflow.
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Roof eaves: insulation & airtightness for a typical W. Yorkshire terraced house



When should a soffit be vented?

So, does my roof need soffit vents? A roof may need soffit vents if there is no other ventilation allowing for adequate air movement. However, if the attic space is properly sealed and insulated, there is no need for this type of ventilation. There is no question that a standard attic space should be vented.
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How should eaves be insulated?

Blown or spray foam insulation should cover the tops of the ceiling joists. Batts should completely fill the joist cavities; an additional layer of batts can be layed over top of and running perpendicular to the joists. Shake batts to ensure proper loft.
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How far should insulation be from eaves?

You'll need to start laying with a minimum gap of 25mm between the eaves and the insulation to ensure a suitable air gap. Maintain this gap along two opposite sides of the loft.
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How much space should be between ceiling and roof insulation?

In most of the U.S. — everywhere but Climate Zone 1 — building codes require the installation of ceiling insulation rated at R-38 or R-49. Achieving these R-values with cellulose or fiberglass requires at least 11 inches of insulation for R-38, or 14 inches for R-49.
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How do I insulate the overhang of my house?

How to Insulate a Floor Overhang with Rigid Foam Sheathing
  1. Inspect the structural integrity of the wall and the overhang. ...
  2. Perform any needed air sealing of the floor joist cavities. ...
  3. Install rigid foam insulating sheathing at the underside of the overhang (See Figures 1, 3, 4 and 5).
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How do you insulate overhangs?

Spray foam insulation is the perfect solution for cold floors in cantilevered overhangs, floors above garages, and floors over unheated or unconditioned spaces. By using spray polyurethane foam, you prevent any air movement that you would normally have in a fiberglass insulated floor.
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Do roof overhangs need to be vented?

This movement of air is essential for preventing condensation build-up that can rot the framing and promote mold growth; it also keeps the attic -- and house -- cooler in hot weather. In general, the Uniform Building Code requires that the total venting area be equal to 1/150 of the attic floor space.
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Should you insulate between roof rafters?

The general advice we give is that you should always insulate between and above the rafters (warm roof) or between and under the rafters (cold roof).
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Can you insulate the underside of the roof?

Open-cell spray polyurethane foam or closed-cell spray polyurethane foam (ccSPF) insulation can be sprayed along the underside of the roof sheathing to provide a conditioned and insulated attic space that can be durable and efficient in all climate zones (see Figure 1).
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Can insulation touch the roof?

We've done some searching and have the answer for you. 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.
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Can you have too much loft insulation?

Lofts can't just chip off a layer of insulation, so the need to breathe is far more important. So, can too much loft insulation cause condensation? Yes it can, and it can cause havoc in your home as well.
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Do eave vents work?

If you have a home ventilation system, installing eave vents is the most effective way of ensuring enough air is available for your roof ventilator to work effectively.
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What is the difference between eaves and soffits?

To summarise, an eave is part of a roof system and a soffit is part of the eave. In simple terms, eaves and soffits are two different parts of the same structure.
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Are soffit vents important?

Soffit helps your home achieve the right amount of airflow circulation without allowing moisture to accumulate around the beams and interior elements of your home. This ventilation is achieved through mini-holes or vents in the soffit. These vents make your home breathable and provide air circulation to your attic.
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