

Expert Insights for Your Construction Projects
Explore trends, tips and professional advice to enhance your building projects with premium materials.
Sourcing Building Materials for Trade Businesses in the Kreis Mettmann
Between Düsseldorf, Wuppertal and Solingen the building sites lie close together — the flow of materials often determines the schedule. This article shows what matters when choosing a supplier in the region.
Planning Tile Joints Properly: Width, Material and Colour
The joint is not a leftover between the tiles but a load-bearing part of the covering. This article explains how width, grout material and colour relate to one another and what to bear in mind for care and regrouting.
Hansgrohe or Grohe: Where the Two Tap Ranges Really Differ
Two similar names, two independent companies: this article sorts out the origins, series logic, cartridge and shower technology of both manufacturers. And it shows which criterion carries the most weight in the long run with concealed installations.
Slip Resistance of Tiles: R Classes for Bathroom, Terrace and Commercial Use
R9 to R13 and the evaluation groups A, B and C measure two completely different things and are nevertheless confused constantly. This article separates the two systems and shows what each figure actually applies to.
Accessible Bathrooms to DIN 18040-2: What the Standard Really Requires
DIN 18040-2 describes circulation areas, door widths and fixture dimensions for accessible bathrooms. Whether it is binding in an individual case depends on the state building regulations – this article separates the two cleanly.
Large-Format Tiles: Advantages and Disadvantages for Trade and Clients
Large formats look calm and are easy to clean, but they place high demands on the substrate, the tools and the planning. This article sorts the advantages and limits as they really occur on site.
Renovating a Bathroom in an Old Building: Pitfalls in Wilhelminian Houses in the Bergisches Land
Timber joist floors, pipework grown over decades and heritage protection make renovating a bathroom in a Wilhelminian house a planning task. This article names the typical pitfalls in the Bergisches Land and shows where structural engineers, contractors and authorities are needed.
Tiling Over Old Screed: Checking the Substrate Step by Step
Voids, residual moisture and unevenness determine the durability of a tiled surface more than the tile itself. This article shows how old screed is checked before tiling and which guide values apply.
Understanding Insulation Values: WLS, Lambda Value and Thermal Conductivity Classes
Lambda value, WLG and WLS describe the same thing with differing precision. This article sorts the key figures, shows their limits and makes clear at what point an energy consultant should take over.
Frost-Resistant Tiles for Terraces and Balconies
How frost-resistant tiles can really be identified, why indoor material fails outdoors and what matters in the build-up beneath the covering. An overview of water absorption, falls, drainage and typical installation mistakes.
Bathroom Renovation: What Really Drives the Price
Why blanket price figures say little about a bathroom renovation and which factors actually determine the cost. A factual overview of the biggest cost drivers, sensible stages, typical mistakes and the right questions to ask your contractor.
Which Tile Size Suits Which Bathroom?
Format, grout pattern and laying direction determine the look, the effort involved and the amount of waste in a bathroom. This article sorts the common formats and shows where large formats make sense — and where they do not.
Sustainable Building Materials for Future-Proof Projects
How durable materials, efficient production and smart product selection reduce the environmental footprint of your construction project.
Premium Sanitary Ware: What Really Matters
From faucets to WC ceramics – a guide to quality features that make the difference in modern bathrooms.
Choosing the Right Floor Tiles for Modern Interiors
Learn how premium ceramics and German-engineered materials can elevate durability, design and long-term value in residential and commercial spaces.