Pitched Roof Insulation Thickness

Taking this into consideration the challenge we have is that with hybrid pitched roofs there is a rule that the amount of insulation that is over the rafters has to match or have a greater thickness than the insulation line between to prevent harmful condensation.

Pitched roof insulation thickness.

Firstly is the choice of insulation material. Arguably the most popular pitched roof solution installing insulation between and under the rafters uses the depth of the structural timbers to best effect. Kingspan kooltherm k7 pitched roof board is a premium performance rafter level insulation for ventilated or unventilated pitched roofs. For a warm roof solution you will need to install insulation in the plane of the roof pitch that is immediately below the sloping roof.

There will also be kooltherm k7 pitched roof board between the rafters image credit. This will help to avoid your roof space becoming. 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. Getting to know kingspan kooltherm k7 pitched roof board.

Go with insulation between and over or between and under the rafters. It is possible to achieve very high levels of insulation in pitched roofs where the insulation is positioned at ceiling level because the insulation thickness is largely unrestricted by construction considerations. A major factor influencing the design of pitched roofs with insulation at ceiling level is the type of roof tile underlay chosen. If 180mm is to be installed then 100mm board might be introduced between the rafters there has to be a minimum 25mm air gap between the insulation and the underside of.

Kingspan with a warm roof the usual process is to split the insulation into two layers. Its versatility is the key to its popularity whether being used to achieve.