ᐅ Lintel above the window, uninsulated / main entrance door

Created on: 6 Jan 2021 11:08
U
Uhu2207
U
Uhu2207
6 Jan 2021 11:08
Hello everyone,

We took the following images using a thermal imaging camera. My question is: do the temperature fluctuations indicate a defect?

The house is a solid concrete structure with lightweight concrete.
Above the windows, there is an unheated attic space
which is separated from the upper floor by 24cm (9.4 inches) of cellulose insulation. In case that is relevant.

Thank you very much for your suggestions.

Thermografieaufnahme einer Wand mit Temperaturunterschieden und BOSCH-Logo


Thermografische Innenraumaufnahme eines Grundrisses mit Wärmeverteilung und Temperaturanzeigen


Thermografisches Bild eines Fenster- und Türrahmen mit Temperaturunterschieden


Thermografisches Innenraumbild: Temperaturverteilung grün/blau, Messpunkt 20–21°C.


Thermische Innenaufnahme eines Raums mit Temperaturverteilung von ca. 18–21°C


Thermografie Innenraum mit Temperaturunterschieden und Heizungsrohre.
J
Jann St
8 Jan 2021 08:02
Hello,

Could you please share a photo of the area?

At first glance, it is clear that while this is a cooler spot, it is not one that would cause problems with mold growth or condensation. Additionally, there are always so-called thermal bridges—areas with reduced insulation (like in your case)—which are accounted for in energy efficiency calculations and need to be assessed in terms of their quantity.

In short: individual areas that are cooler than the rest but do not fall below the critical temperature of 12.7°C (55°F) are not considered defects if they were built according to the plans and the requirements of the thermal insulation certificate.

Best regards,
Jann
U
Uhu2207
9 Jan 2021 11:33
Hello Jann,

Thank you for your message and information. Sorry for the delayed response. I have also attached a picture of the room for you. We reviewed it with my construction manager and identified the problem. The issue is in the cold roof. See the pictures.
The concrete conducts the cold downwards while the heat pushes upwards from below. We will solve the problem by adding insulation on the sides of the cold roof and sealing the edges with foam to ensure everything is airtight 🙂

The ceiling is 32 cm (12.6 inches) thick, incorrect info.


Thermographic image of a building showing temperature differences and a yellow heat conduction line.


Thermography image of a building services component showing heat distribution and cold areas.


White double window with closed shutters, light blue walls in the room.


Wooden floor on the left, light wall on the right; corner between floor and wall.


Attic with visible wooden beams and rough concrete/plaster wall in the background.


Attic with wooden beams, plastic boxes and a picture frame with white flowers.


Attic with sloped wooden beam roof, colorful plastic storage boxes on the left, floor with papers and cardboard boxes.