Introduction: Why Tile Roofs Are Still a Great Choice for Solar
Tile roofs are common in many sun-rich regions like parts of Europe, Asia, the Middle East, and Latin America. Their wide use is largely attributed to their tough nature and the fact that it is able to withstand heat. However, there are issues related to its installation. The tiles used for roofs are fragile and are of a particular structure. Therefore, installing tile roof solar panels can be difficult. The mounting process and the installation expertise are very important for these types of roofs. HBOWA provides support to solar professionals worldwide with bulk-ready components for secure installations on tile roofs.
Global Prevalence of Tile Roofs and Solar Viability
Roof tiles are different from region to region. Clay tiles are prominent in the Mediterranean and Latin America, respectively. Concrete tiles are used generally in the Asia Pacific region and in parts of Europe. Slate tiles, normally used in Northern Europe, are less spotted in solar projects mainly because of their weight and brittleness.
Tile roofing is made to last. Most kinds of tiles can remain structurally sound for about 40 to 75 years. With average lifespan of modern solar panels on tile roof is around 25-30 years, which is beneficial for the users. When set up correctly, the panels can remain in place without actually compromising the integrity of the roof.
Countries with strong solar capabilities require tile roofing. Spain, Brazil, South Africa, the UAE, and India are some of the key examples. The main reasons why solar on tile roofing makes sense are high solar radiation, combined with the long lifespan of roofs. It can be the best investment in solar on tile roof installations. However, the major hustle is that mounting systems are adjusted according to different tiles and never cause damage, including roof pitches.
In some areas where rooftop aesthetics are regulated, consideration of visual impact is still necessary. Requirements for fittings may vary among regions, as well.
Safe Techniques for Installing Solar Panels on Tile Roofs
When installing solar on tile roof structures, you need to adapt sensibly to avoid cracking and moisture entry. The solution you choose depends on the tile type, the roof’s condition, and local building codes. One of the most common solutions is to remove select tiles and attach mounting brackets directly to the roof structure below. A seal is added around flashing, and then the tiles are repositioned, or purpose-made covers are used to replace the removed tiles.
The next way involves replacing the entire tile section with a more traditional flat composite shingle section. This allows the installer to use standard mounting hardware and is easier to maintain. It is often used with older roofs where the original type of tiles is no longer available.
In some places, adhesive-mounted systems are preferred. Instead of drilling at all, the racking is secured to the surface using high-strength structural adhesives, typically applied with professional dispensing gun to ensure proper mixing and consistent application. Although this type of installation is less likely to end in breakage, it is not suitable for every climate and must adhere to local codes.
For customers looking for a more cohesive look, selections like frame-integrated modules-sometimes referred to as solar panels in roof tiles-are available. This system that most closely resembles the tile-style roof and is best suited for new builds or full roof renovations
The application of these methods has been seen being flexible. An example of it is a successful 8kW array installation of solar panels on clay tiles in Spain using a tile hook bracket over a reinforced tile. Another example is the 5KW installation onto cement tiles in India using flashing-based mounts. Neither of the installations incurred any broken tiles due to the completion of the system. Therefore, the answer to the question Can you put solar panels on a tile roof is yes if the correct strategy is chosen for the roof type and the region.
Step-by-Step Installation Process with Regional Insights
Tile-roof solar panels are set up adhering to a certain set of steps, which also change in different regions around the world. The installation begins with a proper site evaluation where the installer reviews the condition of the roof, the type of tile, and the kind of structure. This provides an idea of the mounting plan, where the efficiency of tiles, the cutting, removal, and resin to be used.
After the evaluation process, the selected tiles are taken out or adjusted in a way to accommodate the brackets. The installer bolts the mounts through the battens or rafters at a selected distance from the tiles. The areas are then sealed and dressed with anti-corrosive flashings to ensure that water does not come in, particularly in regions that receive heavy rainfall or snowfall.
Flashings are installed into position; then, the mounting system is anchored and aligned. Racking is then attached to make a framework that will hold the panel array. Once the racking is done, the solar panels on the tile roof are anchored, and then cables are attached to the panels, turning them into a circuit.
The wires are connected to an inverter, and finally, the integration of the electrical system is done – running of a conduit from a roof to the inverter; proper earthing is done, and finally, the panels are connected to the main service panel or a hybrid inverter.
The process in the European region needs to abide by the EN regulation – solar panels have to be CE certified, and the overall structure, safety, and durability must meet the EN standard as well. In the Asia-Pacific region, installers ascertain the inclination needed for rainwater to drain away during the monsoon.
HBOWA solar products work well with all popular mounting systems. N-type TOPCon solar panels and PERC modules work well with Deye inverters and Growatt inverters under different climatic conditions. Our solar panels have been deployed across the globe in various conventional, industrial, and residential projects and have shown that they are durable on different types of tile roofs. Solar panels have been successfully installed on tile roof structures across the globe when installed following regional best practices supported by good quality hardware.
Comparison Table: Mounting Techniques for Tile Roofs
The mounting technique is a key to the integrity of the tiled roof structure of solar panels. Tile material, physical location can determine the slant, and which mounting method could prove to be the best method of installation. The comparison of mounting solar panels on the tile roof structure in different countries:
Each method has some disadvantages. Tile hooks are cheap and are used extensively. However, using it may damage the tile on old or brittle tile roofs. It, however, is an excellent and widely used meal mounting method.
The use of Replacement Mounts ensures added protection and strength whilst helping to ward off any breakage or slippage, especially in the event of seismic or high-wind areas. Adhesive, an old technology used to mount panels on flat cement roofs, requires local code approval as it isn’t stabilized and has higher slippage chances. Inset systems might be a better-looking option with waterproofing; it is complex to install and costs more.
HBOWA solar panels use innovative techniques and thus are 100% compatible with all the above methods. The modular design and sturdy build of the branded tier-1 solar panel providers such as Longi, Trina, Canadian, Jinko, and JA, and other accessories by HBOWA which guarantee an equal and secure holding for all roof types, maintaining the required system efficiency to work.
Common Global Installation Challenges & How to Overcome Them
There are many challenges to installing a solar conversion product on clay or concrete tile roofs. In several cases, solar production on tile roofs has fallen by more than 20% on their solar panel in a 24-hour period, negatively impacting the system’s effective cost.
Mounting solar panels on tile roofs comes with major solar installation challenges by geography and roofing material type. Here are some of the problems:
- Mounts are misaligned or inadequately affixed. Often, during solar panel installation and later under thermal stress, the ceramic or concrete block tiles get cracked. This is frequently encountered when clay tiles are installed on uneven tile surfaces.
- The installer lacks experience. To work on such a delicate tile roof, the installer is supposed to have undergone specific training. An inexperienced general installer might apply more pressure or use the wrong electrical tools, resulting in damage to the roof. If the roof seal is not corrected soon, the warranty will expire too.
- Waterproofing failure is another common issue, particularly in tropical regions and areas where monsoon rains are severe. Lack of flexible rubber sealant around the brackets and flashings allows a little water to get through, but also results in moisture build-up underneath the tile layer without you knowing it.
- Sometimes, the solar work interferes with existing roof warranties. Various roofing manufacturers void the warranty before repairing the modified roof. You need to understand who, be it the installer, the roofer, or the manufacturer, is responsible. In some cases, the installer or the equipment manufacturer can be held accountable.
Global Case Study: 12kW System on Clay Tiles Across 3 Continents
In many places in the world, we have installed tile roof structures and installed solar panels. Although many people in the world believe that installing a solar panel on a tiled roof can crack the tiles or make them weak, which cracks after some time.
In Brazil, a residential 12 kW solar panel system was installed by using HBOWA Tier-1 panels with a hybrid Growatt inverter on a roof with traditional clay tiles. The tile hook with flashing method was used for the setup, and installation was successfully completed in only four days with zero cracking of the tiles. The average daily production is 48 kWh after 12 months of installation; it has also completed the hot summers in that region.
In Italy, we also installed an 8 kW solar panel system on the tiled roof of a private household. Terracotta was the tile type of the roof house, so we replaced the tile in the solar panel installation process. With a plan of the Deye inverter and optimized racking, we installed the panels on the roof. Zero tile breakage was reported, and the average daily production varies slightly seasonally, but you’ll get a 70% energy bill reduction. The installation is only completed in three days.
In South Africa, another 10 kW solar panel was added to a tile roof with concrete tiles. The hybrid adhesive and bolt mounting process was used for mounting over the concrete tile roof. No report of the installation procedure causing a single tile to get cracked. The high temperature and thermal expansions will not affect the HBOWA’s mounting system and installation process for the South African site. A combo of both adhesive and bolt didn’t pose any trouble, isn’t waterproofing or structural damage.
Conclusion: A Global Solar Solution for a Timeless Roof Type
Tile roofs solar panels are not limited to solar energy production. They are an opportunity for timeless and efficient solar solutions. Even the tile roof designs can now accommodate solar projects in an efficient manner, with modern mounting systems, compliance with different regions, and trained installers concerned.
HBOWA presents high-efficiency N-TYPE TOPCon and PERC panels, hybrid inverters, and advanced LiFePO4 battery storage to support the installers at their best. The hybrid inverters and batteries are all packed to ensure compatibility with different types of tile roofs designed in different climates.
For global B2B solar professionals to scale up their projects using tile roofs, HBOWA and top products are the solutions and support provided to get it right from day one on the plant.
