Attic Insulation Eve Vents Blown Insulation

Blown insulation may require an additional block to prevent insulation from being blown into the soffit.

Attic insulation eve vents blown insulation.

Covering up the soffit vents with loose fill or batts which can happen if you stuff insulation along the eaves is a huge no no. Loose fill blown in insulation is best for tight spaces or if your attic already has a layer of insulation. There are two main types of insulation. Your options for attic insulation range from radiant barriers to sheets of mineral wool but most homeowners stick with products made from cellulose or fiberglass.

Batt and roll insulation works well between joist and stud spaces or if you have a wide open space or a crawlspace. Blown in cellulose is an environmentally friendly material made from recycled newspaper so it s easier on your skin and lungs. This is especially true with loose fiber insulation that has been blown into the attic. Wind can blow up through soffit vents disturbing insulation and moving it out of place.

This alternative to traditional building insulation fiberglass can be applied into wall cavities holes concrete slabs and even onto roof tiles and. The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow. Batt and roll insulation and loose fill sometimes known as blown in insulation. See install batt and roll insulation for details.

Once they are in place you can then place the batts or blankets or blow insulation right out to the very edge of the attic floor. Cellulose blown in ceiling insulation is a good choice for diyers. Unfortunately blow in insulation can drift. Vents placed in the underside of the roof s overhang or soffit provide a means for air to get into the attic to help cool it in the summer months.

For the same reason insulation shouldn t touch the roof s underside. Spray polyurethane foam is a chemical product that is created by two materials isocyanate and polyol resin that will react with each other when they are mixed and will expand up to 30 to 60 times its liquid volume as it is sprayed in place. Blocking the eve vents with the insulation is one of the most common causes of moisture problems in attics. We offer our review of the three most popular types of attic insulation with a look at each one s pros and cons.

Blown in spray foam batts and blankets.