EWI to clipped eaves with room in roof (insulation to rafters)

A detail for external wall insulation to deal with a potential cold bridge at eaves where new insulation to rafters meets external wall insulation. To be used where there is an existing room-in-roof or loft/roof insulation to be applied to existing rafters.

Where there is a limited overhang at the existing eaves, an integral gutter is required to enable water run-off. The EWI is used to form a verge, which is then capped with a Stainless steel gutter.

Target values:

Target Roof U-Value: 0.18 W/m²K Target Wall U-Value: 0.18 W/m²K

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EWI to clipped eaves with hidden gutter

A detail for external wall insulation to deal with potential cold bridging at eaves; where new or existing loft or roof insulation meets external wall insulation.

Where there is a limited overhang at the existing eaves, an integral hidden gutter is required to enable water run-off; to facilitate this the EWI is brought up to form a verge, which is then capped with a stainless steel gutter.

Target values: Psi Value: 0.0778 W/mK

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