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  • COMMAIK
    • Contact Form
    • Imprint
    • Privacy Policy
  • The Villa
    • The top floor
    • The upper floor
    • The first floor
    • The cellar
    • The garden
  • Stories from the construction
    • irrigation
    • Photovoltaics
    • Pool and terrace
    • SmartHome
    • The planning
    • The demolition
    • The installation
    • Machinery
    • Restoration and working techniques
    • This and that
  • Videos
    • Build & Renovate
    • Irrigation
    • Carport
    • Gabions
    • Garden
    • Garden kitchen
    • Pool
    • Smart Home
    • Drying
    • Tutorials
  • TESTED & RATED
    • Heating solutions & energy
    • Outdoor & Garten
    • Pool & garden kitchen
    • Security & Smart Home
    • Tools & DIY
  • Commaik Music
  • Privacy Policy
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  • Draining and waterproofing basements: Effective measures against moisture and flooding

    A worn, empty concrete pit with rusty beams, exposed pipes, and draining buckets—one orange and one green—sits against stained, aged walls in a dimly lit basement-like area. www.commaik.de

    Draining my cellar was a lengthy and challenging project that I implemented using various methods to permanently combat damp and mold. From waterproofing with injection methods to installing a pump sump and retrofitting a horizontal barrier – I share my experiences, the challenges and how the measures have proven themselves even under extreme weather conditions. Draining and waterproofing basements: In this blog post, I describe how homeowners can effectively combat moisture and mold to create a dry and healthy basement. Draining a damp cellar was an important step for me to preserve the building fabric and prevent mold growth. In this article, I’ll shed some light on the measures I…

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    A man stands beside images of a backyard with a pool. A Reolink Trackmix PoE security camera is shown on the left, with the Reolink logo at the top right and smart home icons above the garden scene. www.commaik.de

    Reolink TrackMix PoE – 4K dual lens surveillance camera review

    20. July 2024
    A black Reolink NVR device is shown against a gray background. A large text in German reads "Hard disk retrofitting". The Reolink logo appears in the bottom left corner. www.commaik.de

    Expand Reolink NVR storage space – Installing and configuring hard disks correctly

    26. February 2026
    A Lymow One Plus robotic lawnmower with tank-like tracks sits on green grass, slightly dirty from use, in an outdoor area. www.commaik.de

    Lymow One Plus in test: RTK robot mower for large areas & difficult terrain

    29. March 2026
  • Draining the basement with a new horizontal barrier – conclusion after 9 months

    A man with gray hair and a thoughtful expression stands in front of a textured beige wall with faded markings, while a large white arrow points to a spot where a horizontal barrier was installed for drying purposes. www.commaik.de

    It is now nine months since our old damp cellar was drained with a retrofitted horizontal barrier – time to take stock. In a building over 100 years old like ours, which was built without the foundation waterproofing that is common today, moisture in the basement is a real challenge. As the rising damp in our cellar became increasingly visible, I installed a new horizontal barrier with injection cream in the thick cellar walls to create a barrier against the ground moisture. In this article, I show in detail what effect the moisture barrier has had, where problems still exist and what other measures seem sensible to keep the cellar…

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    A Lymow One Plus robotic lawnmower with tank-like tracks sits on green grass, slightly dirty from use, in an outdoor area. www.commaik.de

    Lymow One Plus in test: RTK robot mower for large areas & difficult terrain

    29. March 2026
    A pair of secateurs lies on a wooden board and cuts a branch in the midst of green plants and flowers in a sunlit garden, with a bench and a house in the background. www.commaik.de

    Bypass and anvil in comparison – find the perfect secateurs for your plants

    10. March 2025
    An outdoor Rain Bird irrigation control box with wiring is surrounded by gravel, drip tube, and plants, indicating the installation or maintenance of a garden watering system. www.commaik.de

    DIY ornamental bed with automatic Rain Bird drip tube irrigation

    2. February 2024
  • Drainage – retrofitting a horizontal barrier yourself

    A gloved hand holds a white stick near a moldy wall. On the wooden floor, a silver packet labeled NOVUstick für nachträgliche Horizontalsperren contains 10 sticks for creating an effective horizontal barrier and improving drainage. www.commaik.de

    In addition to draining the outside of my villa, which was built in 1900, some of the basement walls also need to be sealed from the inside. The horizontal barrier in the 36 to 80 centimeter thick walls is no longer in tact. This time I dared to install a retrofit horizon blocker and used the NovuSticks for this. Here I describe my approach and my experiences.

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    A person stands on a rooftop with solar panels and a balcony power plant, pointing toward a graphic showing a Zendure SuperBase energy storage unit. A modern house and trees are visible in the background. www.commaik.de

    Optimize balcony power plant – New modules and 220V battery storage for maximum efficiency

    26. July 2024
    A modern backyard with a rectangular pool, surrounded by gray tiles. There’s a covered terrace with bar stools, a small palm tree, and a blue shed in the background. www.commaik.de

    Build your own pool terrace with stone slabs on a slope

    8. June 2025
    Close-up of a partially constructed wooden deck, ideal for a garden terrace renovation, with a drill, screws, hammer, and metal brackets on top of the decking boards; metal framing and groundwork visible underneath. www.commaik.de

    Renovating the garden terrace: switching from wood to WPC and aluminum profiles

    17. March 2024

Autor & Blogger

In this construction diary, we share our experience in the renovation and modernization of our Art Nouveau villa and hope to give a few suggestions and tips to some of you.

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