Technical assessment of the building - what to look for?

Roof construction - the foundation of success

Let's start with the most important thing - the construction of the roof. It is she who will be the basis of the entire system, therefore it must meet certain requirements:

Tilt angle

The minimum roof slope for the eTile system is 15 degrees. This is a key parameter that ensures not only the correct drainage of water, but also optimal energy production. You can easily measure the angle of inclination using a mobile application with a protractor or ask for help from a roofer.

Strength of the structure

The eTile systems are lighter than you might think - they weigh about 15 kg/m² for the eTile Flat and 13.6 kg/m² for the eTile Classic. For comparison, a traditional ceramic tile weighs about 40-45 kg/m². However, it is always worth consulting with the constructor, especially with older buildings.

Technical condition of the roof truss

If you are upgrading an existing building, check carefully:

• The condition of the rafters - they should not be rotten or attacked by pests
• The distance between the rafters - the ideal distance is 80-100 cm
• Quality of structural joints
• The presence of possible leaks or dampness

Assembly space and logistics

Dimensions and shape of the roof

For effective assembly you will need:

• A minimum of 15-20 m² of floor space on one slope for optimal installation
• Processing space near chimneys, roof windows and other elements
• Adequate access to roof slopes for the installation team

Electrical installation

The key aspects are:

• Location of the main switchboard
• Inverter mounting space (minimum 50 cm spacing on each side)
• Ability to conduct wiring (preferably in cable trays)
• Internet access at the inverter installation site (for monitoring system)

Aspects related to the environment

Shading

Check out potential sources of shading:

• Surrounding buildings
• Tall trees
• Chimneys and other architectural elements
• Antennas and installations on the roof

In the case of partial shading, you do not have to give up the installation - we can use power optimizers that will significantly improve the performance of the system.

Roof orientation

The ideal direction is south, but eTile systems are also great for eastern and western slopes. Thanks to power optimizers, you can effectively use even several differently oriented slopes.

Practical checklist before assembly

Before deciding on the installation, make sure that:

1. You have up-to-date technical documentation of the building
2. The roof structure is in good condition
3. The angle of inclination of the roof exceeds 15 degrees
4. You have enough space for the inverter and accessories
5. You have analyzed potential sources of shading
6. The electrical switchboard is prepared to connect the system
7. It is possible to bring the Internet to the inverter

Practical tips

• Always start by consulting an expert - an initial technical assessment is usually free
• Make accurate photographic documentation of the roof and surroundings
• Prepare a land development plan and technical documentation of the building
• Consult the constructor for older buildings
• Consider future energy needs (e.g. planned heat pump or electric car charger)

Remember that each project is different and requires an individual approach. Our experts will help you choose the optimal solution, tailored to the specifics of your building.

Did you know that...

• Your roof is illuminated by the sun with an energy equal to a small power plant? By using only part of this energy through the eTile system, you can meet all the energy needs of your home.
• Although it seems that the solar roof is heavy, the eTile system weighs less than a traditional ceramic tile - it's like comparing the weight of a mountain bike to a city bike!

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