Insulated Sheathing For Roofs

The ventilation channel s purpose is to invite outdoor air cold air in winter hot air in summer to flow above your insulation layer.

Insulated sheathing for roofs.

Before we put any osb sheathing up we first installed the insulation in the section we planned to sheathe. Box out light fixtures. Build for the future with extreme s structural insulated panels sips the high thermal values and strength properties of extreme s sips are highly beneficial for roof construction. Once you have invited that outdoor air into your roof assembly any insulation installed on the exterior side of the ventilation channel is wasted.

The insulation went down between the roof trusses right on top of the vapor barrier above the ceiling. It creates a breeding ground for mold and mildew and ruins the air trapping pockets that block heat flow. It isn t doing you any good. This retrofit assembly is appropriate for homes with conditioned attics or where the retrofit is intended to create a conditioned attic.

Remove existing roofing and non adhered underlayment to expose roof sheathing. Water is insulation s enemy. Insulated roof assemblies can be vented or unvented. Install insulating sheathing above the roof deck on existing homes.

One of the most efficient and popular methods though is to install rigid foam insulation on top of roof sheathing. For the insulation we used knauf r 49 kraft faced ecobatt insulation batts. Insulation for an exposed ceiling must be located above the sheathing. Extreme s pre insulated sips offer an option for a high performance roof framing solution that is 15 times tighter than conventional construction practices making it easier to control indoor air environment.

Rigid insulation is usually the most practical because of its thin profile but it is more expensive than batt insulation. Insulation requirements will vary with climate and with roofing material. There are lots of different ways to insulate this type of roof but one of the best methods calls for the installation of rigid foam insulation above the roof sheathing. There are at least two good reasons why this approach makes more sense than installing the insulation under the roof sheathing.

It makes the most sense and preforms the best under most conditions. Zip system roof assembly combines our revolutionary integrated sheathing and flashing tape or liquid flashing to provide a sealed roof for protection against moisture intrusion during construction or if high winds strip the roof covering away. Look for water stains on the roof sheathing or damp or moldy spots on attic joists and existing insulation as a clue to where leaks might be. There are several options for insulated roof assembly including vented and unvented roofs.

Trust zip system roof assembly to help fortify your home against the storm.