ᐅ Single-Family Home Energy Saving Regulation 2016: Is Additional Insulation Recommended by Developers Worthwhile?
Created on: 17 Dec 2015 22:22 ölschlamm
Good evening, dear community,
Our project:
Single-family house according to the new 2016 energy saving regulations
Living area 150m² (1,615 sq ft) DIN
Roof insulation currently 24cm (9.5 inches) mineral wool, U-value 0.19
Exterior wall 17.5cm (7 inches) Poroton + 16cm (6 inches) EPS, U-value 0.19
Builder’s proposal:
Increase roof insulation to 30cm (12 inches), U-value then 0.16, additional cost $2,800
Increase exterior wall insulation to 20cm (8 inches) EPS, U-value then 0.16, additional cost $1,400
XPS under the slab is not an option.
I would prefer to skip the extra exterior wall insulation — the south side mostly consists of windows anyway (U-value 0.6), so there isn’t much wall left (maximum 50%).
Is increasing the roof insulation worthwhile?
To do or not? What do you think?
Thanks for any feedback
michael
Our project:
Single-family house according to the new 2016 energy saving regulations
Living area 150m² (1,615 sq ft) DIN
Roof insulation currently 24cm (9.5 inches) mineral wool, U-value 0.19
Exterior wall 17.5cm (7 inches) Poroton + 16cm (6 inches) EPS, U-value 0.19
Builder’s proposal:
Increase roof insulation to 30cm (12 inches), U-value then 0.16, additional cost $2,800
Increase exterior wall insulation to 20cm (8 inches) EPS, U-value then 0.16, additional cost $1,400
XPS under the slab is not an option.
I would prefer to skip the extra exterior wall insulation — the south side mostly consists of windows anyway (U-value 0.6), so there isn’t much wall left (maximum 50%).
Is increasing the roof insulation worthwhile?
To do or not? What do you think?
Thanks for any feedback
michael
@T21150
... It was completely different here. We were practically hoping for rain. For over 10 to 12 weeks, we had almost no precipitation at all. Consistent 30°C (86°F) and sunshine was the norm. Honestly, it got a bit tiresome after a while...
Gas consumption was 55 cubic meters from early April 15 to September 30, 2015. Early April was still cold here, and our heating was only turned off in early May. From mid-May to the end of September, it was just 20 cubic meters.
Best regards,
Andreas
... It was completely different here. We were practically hoping for rain. For over 10 to 12 weeks, we had almost no precipitation at all. Consistent 30°C (86°F) and sunshine was the norm. Honestly, it got a bit tiresome after a while...
Gas consumption was 55 cubic meters from early April 15 to September 30, 2015. Early April was still cold here, and our heating was only turned off in early May. From mid-May to the end of September, it was just 20 cubic meters.
Best regards,
Andreas
andimann schrieb:
@T21150
... it was completely different here. We were begging for rain. For over 10-12 weeks, there was almost no precipitation. Constant 30°C (86°F) and sunshine was the norm. Hi Andreas,
I know. My sister kept sending me weather reports from Bavaria with photos. It was hard to believe; it was unbelievable. When she saw my photos, she always said, "You live in a strange area... right?"
At some point, I got fed up with the weather up here, took two weeks off, and traveled down by train. Two weeks of heat and sunshine. On the way back, starting from Limburg: RAIN and 15°C (27°F) cooler...
A friend from Aschaffenburg said it was even worse there. Basically, it didn’t rain for several months. You could almost have thought the house was on the El Teide plateau, judging by the vegetation.
2015 was an interesting year weather-wise.
Best regards,
Thorsten
Yes, that’s how the world is....
For some, it’s raining while others are burdened with the Energy Saving Ordinance 2016. Looking back on investments, I can generally say: “It was only worthwhile if it was enjoyable. Financially, that was rather rare.” It starts with the season pass for the outdoor pool and ends with converting the old diesel engine to sunflower oil. All investments with great potential but little return.
So, thanks to you all. I will stick to the minimal solution. And if in 20 years I say, “Ha, that would have paid off after all” — well, then I’ll just have to live with it.
I’ll stick with the air-to-water heat pump even if it ends up running with a 2.1 COP, and I’ll keep the 0.18m (7 inches) roof insulation and 0.19m (7.5 inches) wall insulation. I’ll run the solar pipes in as a precaution, as well as the water pipes for the wood stove.
And that’s that.
Otherwise, I learned a few things again. For example, that Viessmann gas condensing boilers aren’t actually that expensive — if only I could get permission to install one. And that operating one at low load isn’t very healthy.
Greetings to all
michael
For some, it’s raining while others are burdened with the Energy Saving Ordinance 2016. Looking back on investments, I can generally say: “It was only worthwhile if it was enjoyable. Financially, that was rather rare.” It starts with the season pass for the outdoor pool and ends with converting the old diesel engine to sunflower oil. All investments with great potential but little return.
So, thanks to you all. I will stick to the minimal solution. And if in 20 years I say, “Ha, that would have paid off after all” — well, then I’ll just have to live with it.
I’ll stick with the air-to-water heat pump even if it ends up running with a 2.1 COP, and I’ll keep the 0.18m (7 inches) roof insulation and 0.19m (7.5 inches) wall insulation. I’ll run the solar pipes in as a precaution, as well as the water pipes for the wood stove.
And that’s that.
Otherwise, I learned a few things again. For example, that Viessmann gas condensing boilers aren’t actually that expensive — if only I could get permission to install one. And that operating one at low load isn’t very healthy.
Greetings to all
michael
An interesting point related to this: Real estate enforces discipline.
With money that would otherwise have been spent on vacations or a new car, you insulate your wall.
In other words, real estate might not always be profitable, but unlike a seasonal swimming pool pass, you still have something to show for it at the end of the year.
With money that would otherwise have been spent on vacations or a new car, you insulate your wall.
In other words, real estate might not always be profitable, but unlike a seasonal swimming pool pass, you still have something to show for it at the end of the year.