No Insulation In Roof

When you don t have any insulation you re constantly leaking lots of heat out the roof keeping the sheathing warm so if it gets wet it dries out quickly.

No insulation in roof.

The big concern with roof ventilation and insulation is moisture control in the roof sheathing. The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow. Chauk line to idenify where your rafters are. Insulating and venting when there is no roof soffit may 21 2016 in most residential homes the soffit and associated vents is the structural part of the roof that hangs over the side of the home.

Run a 2x4 flat around the parmiter of the roof. Strip off the roof. A roof without good insulation is a great contributor to energy loss. Here are just a few of the highlights.

Reduce under roof insulation level to 3 fiberglass r 11 under the cathedral ceiling not good energy savings not recommended but functional just poor insulation value. Fill the area with 1 5 inches thick polyiso. Starting at one edge accross the roof to the other edge. Wood can wet without issue but keep it wet and then the problems arise.

The movement of air into indirect conditioning of an unvented attic is a slow gradual process that will not be noticeable by occupants and typically will not put any strain on the hvac system. Adding insulation where it was never designed to go mainly the walls of an old house causes a host of problems all due to the moisture issues it creates. Here are some older home cathedral ceiling roof insulation and ventilation options that you may consider. Use construction adhesive between 1x4 and insulation board.

Running with the slope lay 1x4 lumber flat onto the insulation 2ft o c. For the same reason insulation shouldn t touch the roof s underside. If your roof deck or insulation is developing water droplets chances are your forehead is too. The principle behind soffits is to allow air to circulate in and around the attic.

Although moisture problems in the roof assembly can be due to waterproofing deficiencies don t neglect the effect of condensation. But with proper design and maintenance principles you don t have to sweat roof condensation issues. 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. There is no insulation in that ceiling and in the summer that room heats up and forces the a c to run constantly in what seems like a losing battle to cool that space.