Insulating The Underside Of A Roof

If you re insulating from scratch put the right vapor barrier in the right place.

Insulating the underside of a roof.

When installing rigid insulation in an attic to be finished as a living space you must provide a route by which hot air can escape. The quest for greater energy efficiency in buildings has led to increasing interest and need for insulation improvements in hvac equipment more airtight construction new materials and assemblies. Your essential guide to insulating lofts and attic rooms. Materials commonly used for the insulation of the roof deck include.

In this way you prevent the heat from the rooms below escaping to the attic rooms above. Warmcel cellulose insulation made from recycled newspaper fibres is ideal for large large loft spaces image credit. For the same reason insulation shouldn t touch the roof s underside. Staple plastic or foam baffles to the roof sheathing near the eaves to keep the material away.

It can trap moisture around the timber stops tiles or slates being reused in the future and prevents inspection of the underside of the roof. But the best solution is actually to insulate both the attic floor and the underside of the roof. Senior engineer manager at icynene john broniek makes the case for the unvented attic assembly and why insulating the underside of the roof makes sense. This requires the use of soffit vents and a roof ridge vent to.

Then you could simply insulate the pitched roof.