ᐅ Results – Does Insulation Fulfill Its Purpose? Exterior Thermal Insulation Composite Systems (ETICS) – A Myth?
Created on: 4 Jun 2016 00:06
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theoretiker
Hello, do you have any results yet on whether the promised savings were achieved?
For example, an energy consultant calculated a 35% heating energy savings for an external thermal insulation composite system (ETICS / WDVS) on an older building.
How much have you or someone you know actually saved?
For example, an energy consultant calculated a 35% heating energy savings for an external thermal insulation composite system (ETICS / WDVS) on an older building.
How much have you or someone you know actually saved?
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toxicmolotof4 Jun 2016 11:56theoretiker schrieb:
how did the indoor climate change during the hot summer We moved out after the house was completed, so we couldn’t gather any long-term experience. But since it was up to 28°C (82°F) before, it hardly could have gotten worse.
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garfunkel4 Jun 2016 22:13I am currently working on a top-floor apartment.
The following was explained to me by a professional:
- Adding external roof insulation reduces heat entering the apartment through the roof, as well as cold entering from the roof. It also helps retain heat inside the apartment, including reducing heat loss in winter and cold penetration.
- For top-floor apartments, how the roof itself is insulated is less important during summer. There is a difference between insulation from the 1970s and modern insulation, but the real issue with top-floor units is always the windows.
- Windows need to be as well insulated as possible, ideally triple glazing, and external shading of the windows is especially important.
Without proper external shading on the windows, all insulation efforts in summer are basically ineffective. A top-floor apartment will always be the warmest spot in the building. This is annoying in summer but pleasant in winter. Fortunately, here in Germany, for about three-quarters of the year, temperatures make the heat retention advantage beneficial.
My top-floor apartment had 1970s-standard insulation, three roof windows without external shading, and limited ventilation during hot summer periods, with nighttime temperatures reaching 28°C (82°F).
The new roof will be installed soon, and the hot summer phase is approaching. I will be getting 18cm (7 inches) of external roof insulation. All roof windows will be removed, and dormers with vertically positioned windows and external shading will be installed.
If I don’t forget, I’ll be happy to report back on how the temperatures behave afterward.
The following was explained to me by a professional:
- Adding external roof insulation reduces heat entering the apartment through the roof, as well as cold entering from the roof. It also helps retain heat inside the apartment, including reducing heat loss in winter and cold penetration.
- For top-floor apartments, how the roof itself is insulated is less important during summer. There is a difference between insulation from the 1970s and modern insulation, but the real issue with top-floor units is always the windows.
- Windows need to be as well insulated as possible, ideally triple glazing, and external shading of the windows is especially important.
Without proper external shading on the windows, all insulation efforts in summer are basically ineffective. A top-floor apartment will always be the warmest spot in the building. This is annoying in summer but pleasant in winter. Fortunately, here in Germany, for about three-quarters of the year, temperatures make the heat retention advantage beneficial.
My top-floor apartment had 1970s-standard insulation, three roof windows without external shading, and limited ventilation during hot summer periods, with nighttime temperatures reaching 28°C (82°F).
The new roof will be installed soon, and the hot summer phase is approaching. I will be getting 18cm (7 inches) of external roof insulation. All roof windows will be removed, and dormers with vertically positioned windows and external shading will be installed.
If I don’t forget, I’ll be happy to report back on how the temperatures behave afterward.
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