ᐅ Building Services / Sustainable Construction

Discover how to make your home environmentally friendly, energy-efficient, and future-proof using modern building technology and sustainable construction methods!

Electrical Planning for New Construction – Experiences and Feedback

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jspawn1•1 Aug 2021 20:15

Answers: 27

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motorradsilke • 9 Aug 2021 21:54

Electrical Planning in the Garden (5 x 1.5 mm²)

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MarcoGT•30 Jun 2021 16:02

Answers: 14

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nordanney • 30 Jun 2021 19:58

Electrical Installation for a New Single-Family Home – Assessment and Suggestions

dynaudio79•19 Jun 2021 23:28

Answers: 29

i_b_n_a_n • 29 Jun 2021 14:54

What is a standard outdoor water connection?

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Heidi1965•27 Jun 2021 20:36

Answers: 12

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HilfeHilfe • 28 Jun 2021 06:11

How to Achieve KfW 55 EE Standard Using an Air Source Heat Pump?

Hendrik1980•25 Jun 2021 09:17

Answers: 3

Nida35a • 25 Jun 2021 13:38

Experiences with hydronic ceiling heating?

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Aika1958•5 Feb 2021 16:45

Answers: 11

schwalbe • 24 Jun 2021 22:17

Does vinyl deform under intense sunlight?

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Reltaw2021•16 Jun 2021 18:01

Answers: 30

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Reltaw2021 • 20 Jun 2021 15:16

Home Security: What Is the Best Way to Implement It?

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Hausbauer2021•3 Jun 2021 19:21

Answers: 35

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Steven • 9 Jun 2021 13:11

Moisture Levels in New Buildings Increase During Wet Weather – Experiences?

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riverstorm•4 Jun 2021 08:23

Answers: 12

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nordanney • 4 Jun 2021 14:38

Thermal pleated blinds / honeycomb blinds – different fabrics / manufacturers?

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Faltenträger•3 Jun 2021 14:14

Answers: 0

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Faltenträger • 3 Jun 2021 14:14

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

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SamSamSam•18 May 2021 13:00

Answers: 21

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SamSamSam • 19 May 2021 15:17

Looking for a CO2 Sensor with Data Logger as a Standalone Device – Experiences

i_b_n_a_n•19 May 2021 10:01

Answers: 0

i_b_n_a_n • 19 May 2021 10:01

KfW Energy Calculation with a Cooling Heat Pump

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Markus254•22 Apr 2021 10:51

Answers: 22

Mycraft • 18 May 2021 09:07

Infrared heating throughout the entire house?

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Wandervogel85•12 May 2021 19:26

Answers: 58

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AllThumbs • 17 May 2021 13:43

Purchase from the property developer; any questions regarding the energy performance certificate are being dismissed.

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FamilieP•16 May 2021 19:20

Answers: 0

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FamilieP • 16 May 2021 19:20

Connecting an LED ceiling light – multiple wires hanging from the ceiling

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Handwerkerin•5 May 2021 15:42

Answers: 27

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Handwerkerin • 8 May 2021 12:54

Automatic water pressure control unit for 15-meter suction hose

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ManuelaE•28 Mar 2021 21:02

Answers: 2

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Schwabe23 • 25 Apr 2021 16:55

Multi-utility house entry – routing cables out of the building

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Hausner•15 Apr 2021 06:04

Answers: 8

rick2018 • 23 Apr 2021 05:09

Pressure loss in the potable water supply line

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Kadir1989•21 Apr 2021 18:35

Answers: 1

K1300S • 21 Apr 2021 20:34

How do you properly balance the requirements of the Building Energy Act against the standards of KfW 55, 40, and 40 Plus?

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--Lars--•14 Mar 2021 16:10

Answers: 45

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WilderSueden • 18 Apr 2021 10:42

Installation shaft and chimney flue combined in one?

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BauFamily•12 Apr 2021 21:33

Answers: 49

11ant • 15 Apr 2021 16:01

Intersecting utility lines from different service providers

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aHOD_88•10 Apr 2021 19:33

Answers: 12

11ant • 11 Apr 2021 13:38

Doorbell, intercom system, and door release

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Hausner•10 Apr 2021 08:54

Answers: 1

Mycraft • 10 Apr 2021 09:17

What type of cable is this (telephone / fiber optic / other)?

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Torben791•31 Mar 2021 09:58

Answers: 2

andimann • 31 Mar 2021 10:07

What installation methods are used for circulation pipes in newly built apartment buildings?

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Hausi99•30 Mar 2021 08:59

Answers: 3

Knöpfchen • 30 Mar 2021 21:21

Which wall assembly is suitable for being vapor-permeable?

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Hausbauer2021•15 Mar 2021 12:34

Answers: 66

bauenmk2020 • 27 Mar 2021 11:19

Bathroom mirror mounted above wall outlet

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DerGuteTon•20 Mar 2021 21:31

Answers: 12

bauenmk2020 • 21 Mar 2021 22:55

Domestic hot water production according to DIN 1988-200 / Below 60 degrees Celsius in large-scale systems?

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Hausi99•4 Mar 2021 10:21

Answers: 5

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Hausi99 • 4 Mar 2021 11:08

Retrofitting Child Safety Covers / Touch Protection for Electrical Outlets

bauenmk2020•24 Jan 2021 16:24

Answers: 22

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WilderSueden • 1 Mar 2021 19:15

Air source heat pump – is ice formation normal?

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Andre77•14 Feb 2021 11:18

Answers: 10

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HilfeHilfe • 18 Feb 2021 08:06

Retrofitting Residual Current Devices (RCDs) in Older Electrical Systems

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rennschnecke•27 Jan 2021 20:26

Answers: 18

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WingVII • 12 Feb 2021 17:33

How to seal the gap between a ventilation pipe and the wall after a core drill?

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Tx-25•5 Jan 2021 14:02

Answers: 4

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BBaumeister • 9 Feb 2021 16:19

Service Pipe Entry into the House

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Andre77•27 Jul 2019 21:59

Answers: 15

hausnrplus25 • 29 Jan 2021 23:41

2 water-proofing layers and three ventilation units are required in a duplex with a granny flat.

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LudwigMuc•19 Jan 2021 09:59

Answers: 4

rick2018 • 19 Jan 2021 19:19

Okal house built in 2001 – how to open the roller shutter box

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Oliver-HD•17 Jan 2021 17:22

Answers: 3

SchwalbenFahre • 19 Jan 2021 14:06

Pressure drainage system (for wastewater only)

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drjack2000•5 Jul 2020 22:30

Answers: 15

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drjack2000 • 18 Jan 2021 22:05

Alarm system for drainage – which mobile data plan?

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Sir_Batman•17 Jan 2021 18:38

Answers: 5

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Sir_Batman • 18 Jan 2021 09:01

Is an air-to-water heat pump a practical option for renovating a listed building to meet Efficiency House standards (160% energy savings regulation)?

RomeoZwo•14 Jan 2021 09:11

Answers: 21

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WilderSueden • 15 Jan 2021 19:58

Finding a Skilled Trades Contractor for Owner-Performed Work

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marco72•30 Nov 2020 09:16

Answers: 26

K1300S • 10 Jan 2021 17:20

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

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Tx-25•6 Jan 2021 18:24

Answers: 25

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WingVII • 7 Jan 2021 19:01

Potential Savings in Lighting Selection

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Chris.D•4 Jan 2021 16:16

Answers: 12

Nummer12 • 6 Jan 2021 15:45

Problems with the telecom provider. Crossed wiring?

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Sedax182•16 Dec 2020 19:10

Answers: 33

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Sedax182 • 3 Jan 2021 14:30

Programming shading systems – experiences and tips?

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Matthias 40•5 Apr 2020 15:29

Answers: 19

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derdietmar • 22 Dec 2020 17:03

Intermittent signal interference on the TV since the internet became available

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Tx-25•17 Dec 2020 09:58

Answers: 22

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Tx-25 • 20 Dec 2020 18:02

Sole-water heat pump only with a decentralized ventilation system?

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schichtler91•13 Dec 2020 18:22

Answers: 13

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Schelli • 14 Dec 2020 20:18

Domestic Hot Water Temperature According to DIN 1988 3-L System – New Regulation Planned?

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Hausi99•9 Dec 2020 09:13

Answers: 1

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Hausi99 • 9 Dec 2020 09:36

Satellite System / IPTV / Cable – New Construction

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exto1791•7 Dec 2020 05:09

Answers: 9

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dhd82 • 7 Dec 2020 08:04

Condensation Water on Walls – What Measures Should Be Taken?

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MFJFRFMF•6 Dec 2020 19:13

Answers: 5

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hanse987 • 7 Dec 2020 00:13

Planning Heating and Ventilation Systems for a KfW 40 Plus Single-Family Home

DaSch17•30 Sep 2020 09:56

Answers: 65

OWLer • 1 Dec 2020 16:08

Which type of hose material is best for a rainwater cistern?

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Kalter.Kaffee•29 Nov 2020 17:32

Answers: 3

rick2018 • 1 Dec 2020 05:29

Is it better to estimate using KfW55 standards or the Energy Saving Regulation?

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HausNebauBW160•24 Nov 2020 08:07

Answers: 11

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marco72 • 30 Nov 2020 09:23

Laying underground cables – how can I seal the empty conduit where it exits the house?

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Flauti•29 Nov 2020 15:29

Answers: 7

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Malunga • 30 Nov 2020 09:22

Water Softeners – What Should You Consider? Recommendations?

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ruppsn•17 May 2018 01:33

Answers: 27

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hampshire • 25 Nov 2020 21:34

Protection of Water and Heating Pipes from Damage During the Construction Phase

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Baulöwe2020•24 Nov 2020 16:07

Answers: 1

Mycraft • 24 Nov 2020 17:58

Final energy demand achievable without insulation

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notmaksen•20 Nov 2020 19:58

Answers: 13

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notmaksen • 22 Nov 2020 15:02

Humidity 60% - Masonry damp

Patricck•21 Nov 2020 16:01

Answers: 23

seat88 • 21 Nov 2020 21:33

Installing External Air Supply for a Chimney

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ny_unity•17 Nov 2020 11:58

Answers: 22

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Lumpi_LE • 19 Nov 2020 13:32

Internet Connection: Deutsche Telekom vs. Cable Network

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PetitJeune•17 Mar 2020 12:45

Answers: 33

Tarnari • 12 Nov 2020 10:28

Is a central water filtration system beneficial (for water softening)?

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ChrisK!83•9 Nov 2020 14:53

Answers: 8

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MayrCh • 10 Nov 2020 14:34

Recessed ceiling spotlight, dimmable, >450 lumens, adjustable color temperature

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Brainstorming•3 Nov 2020 18:51

Answers: 6

Tarnari • 3 Nov 2020 21:36

Single-family house with KfW55 / mechanical ventilation with heat recovery or complying with Energy Saving Ordinance standard – experiences and opinions?

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Mertha257•31 Oct 2020 12:45

Answers: 22

Yaso2.0 • 3 Nov 2020 18:57

Wi-Fi / LAN – What Devices Will Be Included?

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Piotr1981•27 Oct 2020 23:02

Answers: 18

Mycraft • 28 Oct 2020 14:27

Last chance to consider electrical provisions – ideas and tips

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Piotr1981•15 Oct 2020 14:16

Answers: 45

Golfi90 • 26 Oct 2020 12:01

Costs and Benefits of an Energy Consultant?

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Kickz123•6 Oct 2020 10:26

Answers: 9

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Kickz123 • 15 Oct 2020 18:16

Planning Electrical Outlets and Heating Fixtures

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SebastianH.•29 Sep 2020 14:02

Answers: 36

Mycraft • 13 Oct 2020 20:43

Planning to Install a Dimmer – Still Relevant Today?

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Hausbaer•11 Oct 2020 10:53

Answers: 7

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BobRoss • 11 Oct 2020 14:29

Chasing walls for wall lights

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Umbau95•5 Oct 2020 15:43

Answers: 6

Mycraft • 5 Oct 2020 18:10

New Front Door: Who Is Responsible for Sealing the Threshold?

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dr.evil96•23 Sep 2020 09:15

Answers: 3

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Tassimat • 29 Sep 2020 15:26

Auxiliary heating for hot water in a secondary apartment

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JfkJo87•28 Sep 2020 16:00

Answers: 3

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knalltüte • 29 Sep 2020 04:36

Burglar Protection: Planning Outdoor Lighting with Sensors

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annab377•27 Sep 2020 13:26

Answers: 22

Mycraft • 28 Sep 2020 14:24

Final Inspection – Preliminary Review – Your Tips?

kati1337•14 Sep 2020 07:27

Answers: 21

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fach1werk • 18 Sep 2020 08:54

Multi-Utility Entry: Yes or No?

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SebastianH.•9 Sep 2020 13:50

Answers: 26

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MayrCh • 17 Sep 2020 21:06

Utility connection pedestal in the garden vs. utility connection directly inside the utility room

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vorkalmatador•8 Jul 2020 14:32

Answers: 35

Tolentino • 17 Sep 2020 15:25

Buying an Endoscope: What Should You Consider?

manohara•4 Sep 2020 10:35

Answers: 17

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Kokovi79 • 15 Sep 2020 22:00

New Construction Utility Connections for Telephone and Internet

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Elrymir•12 Sep 2020 11:03

Answers: 27

Tarnari • 13 Sep 2020 20:42

Base load of an air-to-water heat pump at 30% of the living area?

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Rampelzampel•3 Sep 2020 13:32

Answers: 7

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hegi___ • 4 Sep 2020 08:05

Differences Between Timber Frame Houses

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joschua_85•16 Aug 2020 10:11

Answers: 54

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knalltüte • 25 Aug 2020 18:28

Blower Door Test Result (n50 = 1.13)

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Silent802•31 Jan 2019 23:35

Answers: 49

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Lumpi_LE • 25 Aug 2020 13:16

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

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titoz•17 Aug 2020 16:38

Answers: 43

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titoz • 21 Aug 2020 11:21

Are home battery storage systems for electric vehicles also not cost-effective? Costs of charging station and battery storage

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annab377•11 Aug 2020 07:54

Answers: 79

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hampshire • 13 Aug 2020 18:33

Roller shutters or blinds on the ground floor

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exto1791•24 Jun 2020 09:25

Answers: 82

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Bookstar • 6 Aug 2020 09:15

Controlling a Second Light with a Motion Sensor Light?

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Herr Stein•27 Jul 2020 15:02

Answers: 7

seat88 • 3 Aug 2020 08:55

Recessed LED Downlight Spacing and Costs

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drej777•7 May 2017 10:44

Answers: 4

rick2018 • 29 Jul 2020 13:39

New Single-Family Home Built to KfW55 Standard – Which Heating System to Choose?

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Traube348•19 Jul 2020 12:19

Answers: 136

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Heinz2k • 29 Jul 2020 13:07

Still installing a gas heating system today?

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Heidi1965•5 May 2020 23:13

Answers: 35

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ttiggerin • 27 Jul 2020 23:21

Government Incentives from BAFA for Renewable Energy

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Heidi1965•26 Jul 2020 12:39

Answers: 7

wrobel • 27 Jul 2020 18:36

HVAC planner with Passive House experience

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Bremer_Haus•18 Jul 2020 10:24

Answers: 11

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Bremer_Haus • 18 Jul 2020 20:05

Backflow valve with or without pump

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Kuota88•6 Jul 2020 17:17

Answers: 12

debaser • 14 Jul 2020 13:39

LEDs for the suspended ceiling in the bathroom, suitable for 12 or 230 volts

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annab377•9 Jul 2020 18:54

Answers: 14

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hampshire • 12 Jul 2020 10:18

KfW financing – is it necessary or not?

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Ybias78•24 Jun 2020 11:13

Answers: 99

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parcus • 10 Jul 2020 20:27

Technical room in the attic, issues with soundproofing?

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Andraho•15 Apr 2020 10:02

Answers: 36

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pagoni2020 • 7 Jul 2020 10:39

Plot 1.5 meters below street level – is a sewage lifting system required?

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ErinBrokovich•6 Jul 2020 18:25

Answers: 12

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guckuck2 • 7 Jul 2020 09:53

Floor construction over an existing wooden beam ceiling – how to build it up

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Speedy1985•4 Jul 2020 14:38

Answers: 2

HausiKlausi • 6 Jul 2020 00:01

Telecommunications Connection for New Home Construction Costs + $300 Credit

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immermehr•21 Jun 2020 09:21

Answers: 8

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Ben-man • 21 Jun 2020 12:25

Sealing the exhaust pipe through-wall vent on the exterior wall

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immermehr•17 Jun 2020 21:31

Answers: 5

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immermehr • 21 Jun 2020 09:14

Loud cracking noises in the evening. What could be the cause?

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danixf•29 May 2020 00:24

Answers: 17

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Snowy36 • 16 Jun 2020 15:09

Plastic (PE) cistern cracked. Is repair possible?

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DavidHi•13 Jun 2020 19:38

Answers: 7

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DavidHi • 14 Jun 2020 17:41

Annual Garden Water Demand – Is a Rainwater Harvesting System Worth It?

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Brainstorming•18 May 2020 13:41

Answers: 53

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Anmacatili • 14 Jun 2020 12:37

Cutting channels (positioning during ceiling installation)

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quattro123•10 Jun 2020 13:10

Answers: 15

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Stefan890 • 12 Jun 2020 17:01

Telecommunications in New Construction of a Semi-Detached House – What/When/How

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vorkalmatador•10 Jun 2020 09:21

Answers: 32

K1300S • 11 Jun 2020 14:26