In brief: Choosing the right building components depends on your construction project, material preferences and functional requirements. Aluminium roof windows such as PRODUCT_136348, PRODUCT_138634 and PRODUCT_136512 offer durability and a modern look. Arched entrance canopies, such as PRODUCT_113223 and PRODUCT_137601, create weather-protected entrances. We compare the best models and explain what to look for to find the right solution for your project.
Are you planning a conversion, renovation or looking to give your home more light and comfort? The right building components are essential. In our 2026 test and comparison, we present the best roof windows and entrance canopies. We help you understand the differences and make the ideal choice for your building project.
Table of contents
- Roof windows compared: What should you look for?
- Aluminium roof windows tested
- Arched entrance canopies for entrances and patios
- Materials and workmanship: A decisive factor
- Installation and fitting: Planning is everything
- Buying advice: How to find the right building component
- FAQ: Frequently asked questions about building components
Roof windows compared: What should you look for?
Roof windows transform a dark attic into a bright, welcoming living space. They are not only a source of light but also an important design feature. You should consider several criteria when choosing one.
The size and shape of the window determine how much light enters. The design affects ease of use and weather tightness. Choose between tilt-and-turn, pivot or fixed glazing. The glazing itself has a significant impact on energy efficiency and living comfort.
Tip: Pay attention to the U-value of the glazing. A lower value means better thermal insulation and helps reduce heating costs.
Aluminium roof windows tested
Aluminium is a popular material for modern roof windows. It is lightweight, stable and virtually maintenance-free. We compared various models.
Aluminium roof window Calypso
The
stands out with its slim profile. It lets in maximum light and is suitable for contemporary architecture. The emerald glass provides neutral colour reproduction.
Aluminium roof window V/U/M/M/P/C/A
The models
and belong to a flexible series. The abbreviation stands for various features. You can choose between an emerald and aluminium finish. These windows are designed for demanding requirements.
Important: Always check the exact design and included features before ordering. Series designations such as V/U/M/M/P/C/A indicate specific combinations of glazing, opening type and fittings.
Aluminium windows are corrosion-resistant and retain their shape even when temperatures fluctuate. They do not need protective paint. Simply clean the surface with water and a mild cleaner.
Arched entrance canopies for entrances and patios
An entrance canopy protects against rain and snow. It makes a striking feature of the entrance and can make outdoor seating areas weatherproof. Arched entrance canopies are particularly attractive.
Compact solutions: BV/B 160 series
The
is an example of a compact arched entrance canopy. Measuring 160 x 90 cm, it provides perfect protection for a front door or a small patio area. The clear 4 mm glazing and anthracite-coloured coating create a modern appearance.
Larger canopies: BV/B 200 and variants
For wider entrances or larger seating areas, models such as Type BV/B 200 are ideal. The larger surface provides more protection. Here too, the glazing is clear as standard, allowing light to pass through.
Material options: stainless steel and white
Alongside anthracite, you can find entrance canopies in other materials. The
in white blends harmoniously with light or classic façades. Stainless-steel variants impress with their particularly elegant and durable appearance.
Note: The supporting structure is crucial for entrance canopies. Ensure that the wall fixings are sturdy and that the specified maximum load, such as snow load, is sufficient for your region.
Entrance canopies extend your usable living space outdoors. They protect not only people but also the house wall and door from the effects of the weather.
Materials and workmanship: A decisive factor
The quality of building components is evident in their workmanship. High-quality materials guarantee durability.
Aluminium roof windows are often powder-coated. This coating is scratch-resistant and colourfast. It offers a wide choice of colours. The seals should be made of EPDM or silicone. They remain flexible even after years.
For entrance canopies, aluminium, stainless steel or coated steel are often used. Stainless steel is virtually maintenance-free. Coated steel occasionally needs to be checked for paint damage. The glazing should be made of safety glass.
Good workmanship can be recognised by clean welds, precise fits and high-quality fittings. Cheap building components rust quickly, the seals become brittle and the mechanism jams.
Installation and fitting: Planning is everything
Installing roof windows involves opening up the roof structure. Plan this step carefully.
When installing roof windows, you must take the roof rafters into account. Structural reinforcement may be necessary. The professional connection seal to the roof waterproofing must be completely watertight. Mistakes can lead to serious consequential damage.
Entrance canopies are mounted to the wall. Check the masonry. Heavy structures may require a foundation. The installation instructions provide all the important details. Follow them precisely.
For both jobs, you will find suitable tools and accessories in our range. Remember sealing materials, fixings and, if necessary, scaffolding.
Buying guide: How to find the right building component
Proceed systematically to choose the ideal product.
- Define the purpose: Do you need more daylight in the loft or a weather-protected entrance area?
- Measure accurately: Measure the installation area several times. For roof windows, the clear distance between the rafters is crucial.
- Choose the material and appearance: Should the element blend in discreetly or serve as an architectural accent?
- Check the technical data: U-value, sound insulation class, maximum load and opening mechanism.
- Plan installation and ongoing costs: Can you install it yourself or do you need a tradesperson? Are there any maintenance requirements?
Browse our building components category to see all the options. Compare the products directly with one another.
The highest-rated building components in our range compared directly:
| Model | Customer rating | Availability |
|---|---|---|
| Aluminium roof window Calypso, without glass, emerald | – | Currently unavailable |
| Aluminium roof window V/U/M/M/P/C/A without glass, emerald | – | Currently unavailable |
| Aluminium roof window V/U/M/M/P/C/A without glass, aluminium | – | Currently unavailable |
| Arched entrance canopy type BV Secco, 1500 x 900 x 320 mm, stainless steel | – | Currently unavailable |
| Arched entrance canopy type BV/B 160, 160 x 90 x 25 cm, anthracite, 4 mm clear | – | Currently unavailable |
With the products presented, such as the or the , you have an excellent selection of high-quality building components. Choose durability, good workmanship and an appearance that suits your home. This way, you will make the right choice in the long term.
FAQ: Frequently asked questions about building components
We have answered the most frequently asked questions in the separate FAQ section above. There you will find details on material benefits, installation, glazing and planning permission.
Frequently asked questions
- What are the advantages of aluminium roof windows?
- Aluminium roof windows are extremely weather-resistant, rustproof and easy to maintain. The material is strong and allows for slim profiles to maximise the amount of light entering. They are ideal for modern architecture and offer a long service life.
- What should I consider when choosing an arched entrance canopy?
- Pay particular attention to the dimensions to ensure the desired area is covered. The material determines the canopy's durability and appearance. Stainless steel is corrosion-resistant, while painted aluminium offers a choice of colours. Check the installation method and the load-bearing capacity of the structure.
- Can I install building components such as entrance canopies myself?
- Many models can be installed yourself, but this requires DIY skills and the right tools. Complex or large elements should be installed by professionals to ensure structural stability and watertightness.
- What role does glazing play in roof windows?
- Glazing is crucial for thermal insulation, sound insulation and safety. Double or triple glazing with an inert gas filling minimises energy loss. Special coatings can improve solar protection or self-cleaning performance.
- Do building components such as entrance canopies require planning permission?
- This depends on local building regulations and the size of the element. Small entrance canopies are often exempt from approval procedures. Before buying, be sure to check with your local building authority to avoid problems.