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Building Technology / Ecological Construction

Find out how to make your home environmentally friendly, energy-efficient, and future-proof with modern home technology and ecological building!

Moisture in new buildings increases during wet weather - experiences?

5 Stern(e)
8 Voting

2021-06-04 08:23:50

Answers: 12

Thermoplissee / honeycomb pleats - different fabrics / manufacturers?

5 Stern(e)
5 Voting

2021-06-03 14:14:21

Answers: 0

Single-family house 140m² KfW efficiency house 55 achievable through insulation and air-to-water heat pump?

4.5 Stern(e)
4 Voting

2021-05-18 13:00:31

Answers: 21

CO2 sensor with standalone data logger wanted - experiences

4.5 Stern(e)
4 Voting

2021-05-19 10:01:48

Answers: 0

KfW energy calculation with cooling heat pump

4.5 Stern(e)
6 Voting

2021-04-22 10:51:44

Answers: 22

Infrared heaters throughout the entire house?

5 Stern(e)
11 Voting

2021-05-12 19:26:53

Answers: 58

Purchase from the developer, inquiries about the energy certificate are "blocked".

4.5 Stern(e)
6 Voting

2021-05-16 19:20:56

Answers: 0

Connecting LED ceiling lamp - several cables hanging from the ceiling

5 Stern(e)
4 Voting

2021-05-05 15:42:52

Answers: 27

House water automatic device for 15m suction hose

4 Stern(e)
5 Voting

2021-03-28 21:02:36

Answers: 2

Multi-branch house introduction - lead the cable out of the house

5 Stern(e)
7 Voting

2021-04-15 06:04:14

Answers: 8

Pressure loss in the drinking water supply line

4.5 Stern(e)
4 Voting

2021-04-21 18:35:56

Answers: 1

How does one correctly balance between the Building Energy Act and KfW 55, 40, and 40 Plus?

5 Stern(e)
8 Voting

2021-03-14 16:10:09

Answers: 45

Installation shaft and chimney shaft in one?

4.5 Stern(e)
7 Voting

2021-04-12 21:33:32

Answers: 49

Crossing lines of various supply lines

4.5 Stern(e)
3 Voting

2021-04-10 19:33:45

Answers: 12

Doorbell, intercom, and door opener

4.5 Stern(e)
3 Voting

2021-04-10 08:54:35

Answers: 1

What is this cable used for (telephone / fiber optic ...)?

4.5 Stern(e)
4 Voting

2021-03-31 09:58:30

Answers: 2

What types of construction methods for circulation pipes are there in new multi-family residential buildings?

4.5 Stern(e)
6 Voting

2021-03-30 08:59:00

Answers: 3

Which wall structure is meaningfully vapor-permeable?

5 Stern(e)
4 Voting

2021-03-15 12:34:44

Answers: 66

Bathroom mirror on wall outlet

4.5 Stern(e)
6 Voting

2021-03-20 21:31:05

Answers: 12

WW Production DIN 1988 200 / Below 60 degrees in large systems?

5 Stern(e)
4 Voting

2021-03-04 10:21:18

Answers: 5

Retrofit child safety socket / touch protection

5 Stern(e)
11 Voting

2021-01-24 16:24:33

Answers: 22

Air heat pump - Is ice formation normal?

4.5 Stern(e)
5 Voting

2021-02-14 11:18:46

Answers: 10

Retrofitting FI switches, older electronics

5 Stern(e)
4 Voting

2021-01-27 20:26:02

Answers: 18

How to close the gap when core drilling between the ventilation pipe and the wall?

5 Stern(e)
5 Voting

2021-01-05 14:02:58

Answers: 4

Supply pipes house entry

5 Stern(e)
8 Voting

2019-07-27 21:59:02

Answers: 15

2xWP and 3x ventilation in DH with granny flat necessary

4.5 Stern(e)
6 Voting

2021-01-19 09:59:07

Answers: 4

Okal house built in 2001, open roller shutter box

4.5 Stern(e)
5 Voting

2021-01-17 17:22:27

Answers: 3

Pressure drainage (wastewater only)

5 Stern(e)
4 Voting

2020-07-05 22:30:00

Answers: 15

Alarm system for drainage - which mobile tariff?

4 Stern(e)
5 Voting

2021-01-17 18:38:55

Answers: 5

Is an air-to-water heat pump sensible for renovation as an efficiency house monument (160% Energy Saving Ordinance)?

5 Stern(e)
5 Voting

2021-01-14 09:11:49

Answers: 21

Find a craft workshop for self-performance

4 Stern(e)
9 Voting

2020-11-30 09:16:25

Answers: 26

Outdoor air-to-water heat pump is smoking and steaming

5 Stern(e)
6 Voting

2021-01-06 18:24:27

Answers: 25

Savings potential in lighting sampling

4.5 Stern(e)
5 Voting

2021-01-04 16:16:30

Answers: 12

Problems with Telekom. Crossed cable?

4.5 Stern(e)
6 Voting

2020-12-16 19:10:03

Answers: 33

Shading programming - experiences, tips?

4.5 Stern(e)
3 Voting

2020-04-05 15:29:23

Answers: 19

Irregular signal disturbance on TV since the internet became available

5 Stern(e)
5 Voting

2020-12-17 09:58:11

Answers: 22

Sole-water heat pump only with decentralized ventilation system?

5 Stern(e)
8 Voting

2020-12-13 18:22:13

Answers: 13

WW Temp. Din 1988 3L Regulation - New regulation planned?-

4.5 Stern(e)
5 Voting

2020-12-09 09:13:07

Answers: 1

SAT system / IPTV / Cable - New construction

5 Stern(e)
5 Voting

2020-12-07 05:09:47

Answers: 9

Condensation water on the wall - What measures should be taken?

4.5 Stern(e)
6 Voting

2020-12-06 19:13:32

Answers: 5

Planning of heating and ventilation technology for KfW 40-Plus single-family house

4.5 Stern(e)
10 Voting

2020-09-30 09:56:59

Answers: 65

Which hose (material) for cistern?

4.5 Stern(e)
5 Voting

2020-11-29 17:32:35

Answers: 3

Is estimating KFW55 useful, or is the Energy Saving Ordinance preferable?

4.5 Stern(e)
6 Voting

2020-11-24 08:07:59

Answers: 11

Laying underground cables - how do I seal the empty conduit coming out of the house?

4.5 Stern(e)
9 Voting

2020-11-29 15:29:01

Answers: 7

Water softener - What should be considered? Recommendations?

4.5 Stern(e)
7 Voting

2018-05-17 01:33:02

Answers: 27

Protection of water and heating pipes from damage during the construction phase

4.5 Stern(e)
5 Voting

2020-11-24 16:07:24

Answers: 1

Final energy demand achievable without insulation

5 Stern(e)
10 Voting

2020-11-20 19:58:24

Answers: 13

Humidity 60% Masonry damp

4.5 Stern(e)
6 Voting

2020-11-21 16:01:33

Answers: 23

Retrofitting external air supply for chimney

4.5 Stern(e)
5 Voting

2020-11-17 11:58:29

Answers: 22

Internet connection: Deutsche Telekom vs. cable network

4.5 Stern(e)
7 Voting

2020-03-17 12:45:31

Answers: 33

Is a central water filtration system useful (descaling)?

5 Stern(e)
3 Voting

2020-11-09 14:53:11

Answers: 8

Dimmable built-in ceiling spotlight, >450 lm, adjustable color temperature

4.5 Stern(e)
5 Voting

2020-11-03 18:51:15

Answers: 6

Single-family house with KfW55/controlled residential ventilation or Energy Saving Ordinance standard - experiences and opinions?

5 Stern(e)
9 Voting

2020-10-31 12:45:40

Answers: 22

WLAN / LAN - Which devices will come?

5 Stern(e)
7 Voting

2020-10-27 23:02:44

Answers: 18

Last chance to plan things for electrical - ideas/tips

5 Stern(e)
14 Voting

2020-10-15 14:16:19

Answers: 45

Energy consultant cost / benefit?

5 Stern(e)
4 Voting

2020-10-06 10:26:14

Answers: 9

Planning sockets and burn sites

5 Stern(e)
9 Voting

2020-09-29 14:02:30

Answers: 36

Planning a dimmer - still relevant?

5 Stern(e)
4 Voting

2020-10-11 10:53:52

Answers: 7

Cutting slots for wall lights

4.5 Stern(e)
5 Voting

2020-10-05 15:43:21

Answers: 6

New front door, who performs the sealing of the threshold?

5 Stern(e)
4 Voting

2020-09-23 09:15:37

Answers: 3

Auxiliary heating, hot water, granny flat

5 Stern(e)
4 Voting

2020-09-28 16:00:53

Answers: 3

Burglary Protection: Planning Outdoor Lighting with Sensors

5 Stern(e)
4 Voting

2020-09-27 13:26:35

Answers: 22

Building acceptance - Preliminary inspection - Your tips?

4.5 Stern(e)
4 Voting

2020-09-14 07:27:09

Answers: 21

Multi-division house introduction yes or no

5 Stern(e)
6 Voting

2020-09-09 13:50:34

Answers: 26

House connection pillar in the garden vs. house connection directly in the utility room

4.5 Stern(e)
3 Voting

2020-07-08 14:32:16

Answers: 35

Endoscope purchase, what should one pay attention to?

5 Stern(e)
4 Voting

2020-09-04 10:35:07

Answers: 17

New construction - Telephone/Internet connection

5 Stern(e)
4 Voting

2020-09-12 11:03:37

Answers: 27

Base load air-water heat pump for 30% living area?

4.5 Stern(e)
5 Voting

2020-09-03 13:32:35

Answers: 7

Differences of wooden houses

4.5 Stern(e)
5 Voting

2020-08-16 10:11:30

Answers: 54

Blower-Door-Test result (n50=1.13)

4.5 Stern(e)
4 Voting

2019-01-31 23:35:55

Answers: 49

Single-family house - 18,000 kWh in two years - what could be the problem?

4.5 Stern(e)
6 Voting

2020-08-17 16:38:13

Answers: 43

Is energy storage also unprofitable for electric cars? Costs of wallbox + storage

4.5 Stern(e)
5 Voting

2020-08-11 07:54:28

Answers: 79

Roller shutters or blinds on the ground floor

5 Stern(e)
5 Voting

2020-06-24 09:25:28

Answers: 82

Control a second lamp with a motion sensor lamp?

4.5 Stern(e)
5 Voting

2020-07-27 15:02:57

Answers: 7

LED recessed spotlights distances, prices

4.5 Stern(e)
5 Voting

2017-05-07 10:44:50

Answers: 4

Newly built single-family house KfW55 standard - How to heat?

5 Stern(e)
5 Voting

2020-07-19 12:19:43

Answers: 136

Build a gas heater today?

4.5 Stern(e)
5 Voting

2020-05-05 23:13:41

Answers: 35

Bafa support for renewable energies

4.5 Stern(e)
4 Voting

2020-07-26 12:39:59

Answers: 7

TGA planner with passive house experience

4.5 Stern(e)
3 Voting

2020-07-18 10:24:36

Answers: 11

Backflow valve with pump or without

5 Stern(e)
5 Voting

2020-07-06 17:17:19

Answers: 12

LEDs for the suspended ceiling in the bathroom with 12 or 230 volts

4 Stern(e)
5 Voting

2020-07-09 18:54:38

Answers: 14

KfW - construction: is it necessary or not?

4.5 Stern(e)
7 Voting

2020-06-24 11:13:54

Answers: 99

Technical room in the attic, problems with soundproofing?

4.5 Stern(e)
5 Voting

2020-04-15 10:02:19

Answers: 36

Plot 1.5m below street level – lifting system?

4.5 Stern(e)
4 Voting

2020-07-06 18:25:29

Answers: 12

Floor on old wooden beam ceiling - how to build up

4.5 Stern(e)
3 Voting

2020-07-04 14:38:28

Answers: 2

Telekom Move New Construction Costs + 300€ Credit

5 Stern(e)
6 Voting

2020-06-21 09:21:19

Answers: 8

Seal exhaust pipe wall box exterior wall

4.5 Stern(e)
6 Voting

2020-06-17 21:31:54

Answers: 5

Loud cracking in the evening. What is the cause?

4.5 Stern(e)
3 Voting

2020-05-29 00:24:51

Answers: 17

Cistern (PE plastic) cracked. Repair possible?

4.5 Stern(e)
5 Voting

2020-06-13 19:38:53

Answers: 7

Water demand garden/year --> Is a cistern worthwhile?

5 Stern(e)
4 Voting

2020-05-18 13:41:03

Answers: 53

Making slits (position during ceiling installation)

4.5 Stern(e)
6 Voting

2020-06-10 13:10:00

Answers: 15

Telecommunication New Construction Semi-Detached House - What/When/How

5 Stern(e)
5 Voting

2020-06-10 09:21:52

Answers: 32

DIN standard for sound insulation in open stairwell to apartment corridor?

4.5 Stern(e)
3 Voting

2020-06-08 17:11:27

Answers: 4

Air-to-air heat pump vs air-to-water heat pump vs ring trench collector - differences

4 Stern(e)
8 Voting

2019-12-12 10:33:24

Answers: 50

Energy Saving Regulation data (building volume etc.) are high - why?

4.5 Stern(e)
4 Voting

2020-05-27 09:29:37

Answers: 10

Sound insulation VDI Guideline 4100 & DIN 4109 in prefabricated house construction

4 Stern(e)
3 Voting

2020-05-03 21:30:24

Answers: 49

Drainage of collected rainwater in the yard

4.5 Stern(e)
5 Voting

2020-05-13 16:05:54

Answers: 3

Not all electrical cables are laid in empty conduits! What to do?

4.5 Stern(e)
4 Voting

2020-05-10 18:53:00

Answers: 20

Energy Saving Ordinance or Thermal Insulation Certificate Offer

5 Stern(e)
3 Voting

2020-04-28 16:01:42

Answers: 17

Blower-Door Test (individual contract component with n50 value)

4 Stern(e)
3 Voting

2020-05-03 14:49:59

Answers: 2