Vented And Unvented Roof Assembly

Insulating Unvented Roof Assemblies Interior Wall Insulation Roof Sheathing Roof Insulation

Insulating Unvented Roof Assemblies Interior Wall Insulation Roof Sheathing Roof Insulation

Bsi 046 Dam Ice Dam Building Science Information Roof Cladding Roof Insulation Fibreglass Roof

Bsi 046 Dam Ice Dam Building Science Information Roof Cladding Roof Insulation Fibreglass Roof

Roof Insulation Roof Insulation Roof Sheathing Cathedral Ceiling

Roof Insulation Roof Insulation Roof Sheathing Cathedral Ceiling

Insulating Unvented Roof Assemblies Metal Roof Insulation Roof Insulation Roof Shingle Repair

Insulating Unvented Roof Assemblies Metal Roof Insulation Roof Insulation Roof Shingle Repair

How To Build An Insulated Cathedral Ceiling Roof Insulation Roof Sheathing Cathedral Ceiling

How To Build An Insulated Cathedral Ceiling Roof Insulation Roof Sheathing Cathedral Ceiling

Learn How To Construct A Vented Attic Properly Review The Theory Behind Venting Understand When To Vent Your Roof When Not Roof Insulation Roof Repair Roof

Learn How To Construct A Vented Attic Properly Review The Theory Behind Venting Understand When To Vent Your Roof When Not Roof Insulation Roof Repair Roof

Learn How To Construct A Vented Attic Properly Review The Theory Behind Venting Understand When To Vent Your Roof When Not Roof Insulation Roof Repair Roof

Moisture content in roof structure must be less than 18 prior to covering.

Vented and unvented roof assembly.

Control construction moisture content with tenting or temporary roofing when necessary. Because the drying capacity of unvented roof assemblies is inherently lower than vented ones it is especially critical to control built in moisture during construction. Sc historically typical construction of homes in canada and the us have vented attics between the ceiling of the interior space and the roof. They are designed without ventilation openings and the attic is conditioned like the rest of the living space.

In other words vented roofs may well be the best design for one home while an unvented roof will be a better solution for another home. An unvented assembly can perform well but it s important to get the details right to avoid sheathing rot. Air permeable insulation such as fiberglass batts dense packed cellulose or blown in fiberglass can t be used alone for an unvented assembly since these types of insulation can allow moist indoor air to reach the cold roof sheathing leading to condensation or moisture accumulation. Unvented roof assemblies are becoming an increasingly common construction alternative to traditional vented roofs.

These assemblies are created by eliminating ventilation openings and moving the thermal moisture and air control boundaries to the plane of the roof deck.

This Insulated Sloped Roof Assembly Locates All Of The Insulation On The Exterior Side Of The Roof Sheathing Roof Insulation Details House Roof Roof Insulation

This Insulated Sloped Roof Assembly Locates All Of The Insulation On The Exterior Side Of The Roof Sheathing Roof Insulation Details House Roof Roof Insulation

Unvented Roof For Cold Climate Metal Roofing Over Exterior Rigid Foam Greenbuildingadvisor Com Metal Roof Roof Insulation Rigid Roof Insulation

Unvented Roof For Cold Climate Metal Roofing Over Exterior Rigid Foam Greenbuildingadvisor Com Metal Roof Roof Insulation Rigid Roof Insulation

Unvented Roof Assemblies For All Climates Bldg Sci Corp Roof Insulation Roof Roof Sheathing

Unvented Roof Assemblies For All Climates Bldg Sci Corp Roof Insulation Roof Roof Sheathing

Unvented Roof For Hot Climate Raised Heel Truss Wood Shingle Roofing Over Spray Foam Greenbuildingadvisor Com Roof Detail Roof Shingles Roof Sheathing

Unvented Roof For Hot Climate Raised Heel Truss Wood Shingle Roofing Over Spray Foam Greenbuildingadvisor Com Roof Detail Roof Shingles Roof Sheathing

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