How To Insulate A Mono Pitch Roof

Of insulation plus room for an air gap of at least 6 in.

How to insulate a mono pitch roof.

After cutting the plasterboard to width so that it fits between horizontal centres of rafters screw the insulated plasterboard to the rafters. The first decision is whether to insulate a pitched roof at ceiling or rafter level. Specify roof trusses or conventional framing deep enough for 12 in. The mono pitch roof is always made out of one single roofing surface.

As this requires fitting insulation above the rafters the roof covering will have to be removed in order to fit the insulation. A mono pitch roof consists of a single surface of the sloping roof which is generally not attached to another roof surface. Between the top of the insulation and the roof sheathing. If making a warm pitched roof construction you should opt for some type of rigid insulation boards such as kingspan k7 pitched roof board orcelotex xr4000 pir insulation boards which can be installed both between and over the rafters and offers a level of fire resistance if important and applicable.

In older buildings the usual method is to install fiberglass batts or cellulose on top of the leaky ceiling with a gap of a few inches or sometimes a few feet between the top of the insulation and the roof sheathing. The current trend is for a warm roof where insulation is installed between the rafters thereby keeping the roof timbers warm. Insulating along the sloping rafters forms a warm roof and is an option for both new builds and refurbishment projects. Please note that these boards require a breather membrane over the.

The insulation can be installed between the rafters and underneath the rafters to extend the thermal envelope up along the pitch of the roof allowing for a new heated room within the loft space. Let us now get to the characteristics of the mono slope roof along with some of its advantages and disadvantages. The bottom of the insulated plasterboard should meet the floor level of the roof space. To create a warm pitched roof insulation such as kingspan kooltherm k7 pitched roof board should be fitted between and over the rafters.

In some cases but not all there is an attempt to vent the air space above the insulation to the exterior. How to insulate a roof. Fitting the insulated plasterboard.