Airtec Double foil insulation is recommended for cavity walls and sloping roof...
Has anyone tried it this particular type of insulation just above the ceiling?
I thought of combining the reflective property of foil insulation with the rockwool or fibreglass insulation - in particular I'm thinking of installing Airtec insulation just above the ceiling plasterboard (leaving a 25mm gap) and then fibreglass insulation (with another 25mm gap above the Airtec foil).
This way I'm combining the reflective properties of the Airtec Double foil with the insulating properties of fibreglass.
To avoid condensation I might also need to install another layer of foil (or a membrane) above the fibreglass...or maybe partially insulating the sloping roof?
Has anyone already tried something similar?
Else, should I go for the traditional method of simply install rockwool above the ceiling and the Airtec foil on the sloping roofs?
Has anyone tried it this particular type of insulation just above the ceiling?
I thought of combining the reflective property of foil insulation with the rockwool or fibreglass insulation - in particular I'm thinking of installing Airtec insulation just above the ceiling plasterboard (leaving a 25mm gap) and then fibreglass insulation (with another 25mm gap above the Airtec foil).
This way I'm combining the reflective properties of the Airtec Double foil with the insulating properties of fibreglass.
To avoid condensation I might also need to install another layer of foil (or a membrane) above the fibreglass...or maybe partially insulating the sloping roof?
Has anyone already tried something similar?
Else, should I go for the traditional method of simply install rockwool above the ceiling and the Airtec foil on the sloping roofs?