Rigid Insulation Timber Frame Roof

On top of the ice and water shield we start framing out a cavitiy to hold insulation.

Rigid insulation timber frame roof.

Fiberglass insulation is most commonly used in conventional stick frame construction where there are standard studs. In typical lumber frame construction roof insulation is placed between rafters and then covered up with drywall. You only insulate over the interior of the cabin all the overhangs are left free of insulation. When the rafters are exposed such as in timber frame houses this technique is not.

Most building professionals recommend that you vent your roof when using rigid foam insulation as do almost all sip manufacturers. I used 2x6s for the framing toenailing the 2x6s into the roof system. Xtratherm thin r is a quality rigid pir insulation board suitable for application in the walls floors and roof spaces of timber frame houses. This saves money and time.

In a cathedral ceiling design such as is common with exposed timbered roof systems certain roof coverings notably wood shingles or shakes standing seam metal tile and asphalt shingles perform best when the underside of the roof deck is adequately ventilated. However it can be done from the roof side at the time you replace your asphalt or cedar roof with a new aluminum metal roof. Finally insulation is added to the wall cavities. Dense pack cellulose dense pack cellulose insulation is the most eco friendly insulation and is made up primarily of recycled paper fiber usually post consumer waste.

The plan to finish my timber frame roof. Don t worry we will tie the roof down better in a later step. Build a box around the timber frame air water seal it and then add exterior insulation to completely cover the box. If you have an existing log or timber framed home adding insulation and ventilation can be a major challenge and expense due to demolition costs.

This insulation surpasses the values required by current building regulations and is notoriously used in zero carbon fabric and passive house standard timber frame homes. The basic steps for my project were.