ᐅ Facade Renovation: Connection to a Cold Roof System

Created on: 2 Jan 2023 12:07
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paulch7
Hello everyone, how should a new ventilated facade with 20 cm (wood fiber, fiber cement panels) be connected to the existing cold roof (hip roof, 11-degree pitch, ventilated) without thermal bridges? I am concerned that the knee wall remains uninsulated, which could lead to mold in the inhabited ground floor below. Is it necessary to remove the eaves? The attic/floor of the old building (1970) was insulated from the inside and is not inhabited (storage room).

Thank you

Exterior view of a house: rough plaster wall, gutter, white roof edge, window frame made of granite.
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paulch7
4 Dec 2023 14:02
Hi Till, thank you very much. This means that with VHF, the facade mainly needs to be inspected from the inside. I suspect the old images with Seek are somewhat misleading. I have now found a Flir T440 for rent; it costs a bit more, but it provides certainty. At one spot, I found a "leak" with 11°C (52°F) and would like to re-measure. The recalibration didn’t work properly with the attachment.

Thermography of a house with door on the wall; left side cold, right side warm, temperature readings.