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Green Roofs and Solar Power – Biosolar Roofs are Smart Green Infrastructure. Solar system on terrace

Green Roofs and Solar Power – Biosolar Roofs are Smart Green Infrastructure. Solar system on terrace

    green, roofs, solar, power, biosolar

    Green Roofs and Solar Power – Biosolar Roofs are Smart Green Infrastructure

    Green roofs and solar power – often referred to as Biosolar roofs – is Smart green infrastructure.

    There is a perception that a roof can either have a green roof or solar power but not both. This is however not the case. Combining the two technologies is common in many countries in the world. Switzerland, Germany and Austria lead the way in the approach.

    Green Roofs and Solar Power – the Biosolar Approach

    A biosolar roof generates energy as well as providing all the benefits of a green roof. but in fact, both systems can benefit each other too.

    There is substantial evidence from Germany and Switzerland that combining solar panels and vegetation can produce the following benefits:

    • Solar/Photovoltiac panels can work more efficiently on a roof when installed over a green roof system. The micro-climate around the panels is important. If it is too hot, the panels can lose efficiency. The green roof element can have a cooling effect, especially in summer. Year round, green roofs can help to keep ambient temperatures around the panels at or near 25 0 C. This is the best temperature for solar panels to work most efficiently.
    • A green roof makes the installation of A-frame panels easier. The green roof element provides the ballast to hold the A-frames and panels in place. This means there is no impact on the waterproofing layer below.
    • The PV panels should also increase the diversity of vegetation and therefore also fauna using the green roof. The panels can create shaded areas underneath, with rain run-off making damper areas to the front and drier areas behind. This creates a ‘habitat mosaic’, allowing a wider variety of vegetation to flourish, in turn attracting a wider range of butterflies, bees, beetles and other species.

    Smart Green Infrastructure on One Roof – Specialist Designers and Installers Required

    However, if biosolar roofs are not design and installed correctly, things can go wrong. All too often, solar panels are seen as the important element. They do provide energy after all which has a clear financial value. But if the green roof is just treated like window-dressing around the panels. the positives mentioned above can quite easily turn into negatives. The image above illustrates the problem, where panels have been placed too close to each other and the wrong kind of plants have taken over.

    Successful Biosolar Roof Projects

    There are a number of exemplar biosolar roof projects around the world that combine green roofs with solar energy. In London, the roof of the Olympic Park Media Centre in Stratford is one. Standard Chartered Bank’s biosolar roof in the City is another. With an increased interest in solar energy on roofs from the current Mayor of London, such projects are likely to increase.

    In Switzerland, there are biosolar roof projects throughout the country. The Messe Hall in Basel installed in 2000 was one of the first. It is also one of the largest solar roofs in the country.

    In Germany, many green roofs combined with solar panels are found in Freiburg and elsewhere in the country. It will be interesting to see what happens in France, now there is a national law to encourage solar and green roofs. Whether this leads to more biosolar roof projects is to be seen, as the law is ambiguous on whether they should be combined together.

    The Future Should be Green Roofs and Solar Power at Roof Level

    Sadly, architects all too often choose to separate the two technologies on a roof. But with pressure mounting to meet renewable energy targets and create resilient cities, green roofs with solar energy generation are surely part of a Smart future for cities.

    If you want a greener environment for your roofs, residential solar panels are definitely the one for you!

    Solar Panels obtains direct energy from the Sun causing less pollution as it replaces fossil fuels. Putting up Solar Panels to your roof is a great way towards preventing climate change.

    If you want to help change the world in your own little ways with a few costs that are worth a long time, consider a Solar Panel Installation now!

    But before installing one, here are some Roof Requirements for Solar Panels you need to check:

    Is Your Roof Ready To Support Solar Panels?

    Do you know how old is your roof? When was the last time you had them repaired?

    If your roof shows signs of cupping, lifting or other damages, make sure to have them repaired first before considering solar panels. You may inquire with our Roof Repair Services to know if your roof can already support the solar panels you need.

    You may also check the warranty of your roof and the solar panel that you will get. If the warranty of your solar panel is about 10 years and the warranty of your roof is only about 5 years, you may want to consider finding a new roof to better support the solar panels needed to be installed.

    Consider The Size Of Your Roof

    Does your roof have enough space where the solar panels will be placed? An average size for a good space of the roof would be 400-600 square feet.

    Usually, each solar panel takes about 18 square feet. The ideal roof for solar panels should be 30-40 degrees with a slanted style rather than a flat one.

    Slanted roofs are the best option for solar panels but having flat roofs is just as fair. Ask a professional Solar Panel Installation on what works best for your roof!

    green, roofs, solar, power, biosolar

    Consider The Type Of Your Roof

    Is your roof made out of shingles, clay, or slate? Make sure to inspect your roofs first before installing a solar panel.

    Solar panels work best with shingles as they are the most popular and easiest type of roof that a solar panel can be attached to. Clay or slate roofs tend to break that’s why it is not advisable for solar panels to be put onto.

    You really need to be extra careful when you have a clay or slate roof. Inquire for the help of a roof expert if you want to get your roof check for it to be compatible for solar panel installation.

    Know Which Direction Your Roof Is Facing

    If you want to get the quality amount of sunlight, you need to know where your roof is facing. You need to determine where to put the solar panels to get the best source of sunlight and have good placement for it.

    Most professionals say that your roof should be facing the South with 180-195 degrees orientation to receive the most amount of sunlight for your panels. Learn more about how solar panels work to better understand its benefits.

    Check If Your Roof Has A Clear Surrounding

    Solar panels need to be exposed to the sun for a long time to recharge the energy that it has given off the past hours. It should get a continuous amount of sunlight for about 6 hours and more.

    Obstructions such as chimneys, dormers, shadows from the trees, buildings, or neighbors whose house is taller than yours should be limited. If your solar panel does not have a clear path to get the right amount of sunlight, chances are the production of electricity is reduced.

    Let your place get checked by a professional roof installation service. Know when is the best time to put up your solar panels and know if your roof is ready for a big change!

    Determine The Strength Of Your Roof

    Installing solar panels on your roof would mean increasing the weight that it should hold. If your roof is not sturdy enough to carry the weight of the solar panel that will be installed, chances are, it will collapse.

    This will be dangerous for your family and it will cost you more expenses for roof and solar panel repairs. Not to mention the cost of an installation service for both.

    If you don’t want to experience this painstaking situation to happen, have a professional roofing service to evaluate the needs of your roof before a solar panel installation.

    Prepare Your Budget

    Making the switch to clean and renewable energy takes a lot of money. A solar installation will cost you an average between 15,000 – 29,000.

    You will be needing a big amount of money if you want to have a green alternative for your energy sources. It is a big investment but it will also help you reduce costs for a long time when you find the right solar panel installation services.

    Installing solar panels would mean a perfect renewable energy source which helps improve the environment and public health. Make the right choices now and get bigger savings tomorrow!

    If you want to more about solar panels roof requirements, hire the best solar panel installation services and call Hollister Roofing at (831)-636-0188 today!

    Start your Saint-Tropez feeling today

    Feel like you’re on holiday and enjoy a very special feeling under your new patio roof.


    Your self-generated electricity is consumed in your own home, ensuring you save 50-90% of your electricity costs. The sun does not send a bill!

    Solar protection

    Transparent solar modules make the perfect shade. No additional sunshades or awnings are necessary.

    Protection against the weather

    Protect your garden furniture from sun, hail, rain and snow by using your elegant patio roof.

    Grill party GO!

    It doesn’t matter if the sun is shining and you want shade or whether it is raining and hailing, your patio roof you give you a suitable protection.

    Generate your own electricity

    Pull the plug on the electricity price increases and make yourself independent from energy suppliers by using your own supply of electricity.

    Become your own electricity generator now.

    You can save up to 90% of your electricity costs with a solar patio roof.

    Your solar patio roof is financed solely by the sun’s rays. A direct electricity current is generated on the solar energy roof through transmitted light, which is converted by an inverter into alternating current, thus the current from our socket.

    The electricity is used in the household first, such as running the washing machine, dishwasher, and household technology. The surplus electricity is fed into the electricity grid and is guaranteed by law for more than 20 years.

    We give your garden a nice ambience.

    Your new patio roof experience begins with an idea. You will find numerous innovative and inspirational ideas for your garden using our online catalogue.

    You will be sent an individual quotation including a profit review online instantly by email.

    The electricity produced is first consumed in the house itself and only the surplus electricity is fed into the grid. You will receive the turnkey ready assembly from a single source.

    By contributing to climate protection, you save electricity costs.

    The photo gallery provides you with initial ideas. We are happy to bring our new roof patio to your home. Sign up here free of charge for our online Webinar with live demonstration.

    You will be sent an individual offer including a profit overview in the online planner instantly by email.

    Making use of the sun’s rays and thereby saving your own electricity costs

    If it is unbearably hot on the terrace in the summer, a canopy can provide the necessary shade. With a solar patio roof you can kill two birds with one stone: a cool and shaded peaceful area is created under the patio roof and the solar glass converts the incoming sunlight into electricity.

    With the electricity generated there you can do your washing, blow-dry your hair or watch a movie on TV. All electrical appliances in the home can easily be powered by solar power. If you happen to own an electric vehicle, it can also be charged by the solar electricity generated by the canopy.

    If you do not consume all the electricity generated by the solar patio roof, it will be fed into the public electricity grid, thus reducing your electricity bill. The solar panels thus provide excellent sun protection while at the same time being so transparent that it is not too dark underneath them. The modules are, for example, safe from hail and yet so robust that they can be accessed even for maintenance.

    Your desired style and personal taste dictates the material

    If you want to mount a solar patio roof on your patio you can choose between a structure made of wood or aluminium. Wood is the building material most commonly used. The natural material creates a cosy and warm atmosphere on your patio.

    The wooden structure made of spruce or pseudotsuga laminated wood is extremely stable and particularly suitable for higher spans. At the plant, we offer final treatment with a varnish or opaque paint, such that every patio roof ends up a unique look which is adapted to your house.

    If you call a modern house in Bauhaus style your own, patio roofs made of aluminium will fit perfectly. Your terrace will have a modern and at the same airy appearance with them.

    A canopy roof in aluminium is not only very stable, but scores points simultaneously due to its relatively delicate appearance and a low-maintenance and weatherproof surface. However, the raw aluminium material is €500. €800 more expensive than our wood finishes in laminated wood.

    The aluminium profiles receive a high-quality powder coating and are available in more than 1,625 RAL colours. Aluminium is highly resistant to weather and other environmental influences, does not rust and does not need further care.

    We also offer a low-cost kit with our premium solar glass for the patio roof made of aluminium. You can build your new sunscreen on your patio by yourself with a little technical skill. You will find a first impression of aluminium patio as a kit here.

    Your canopy in the corner, as a wall-mounted or freestanding entity?

    While most patio roofs nestle in the house with wall purlins, there is the solar patio roof in addition, which comes as a freestanding canopy. This means that the assembly could also be used for a non-structural façade for a number of different reasons.

    We offer a patio roof in different sizes made from different materials according to your own wishes. It is stably positioned on the ground with a point foundation (30 cm x 30 cm and 80 cm deep) and usually anchored to the house, so you are completely protected from hot sun rays, rain and other effects of weathering.

    Since such a patio roof is wind and weatherproof, the garden furniture can simply be left outside when the weather is bad. If the patio is completely covered, the roof not only offers protection from the scorching heat of the sun’s rays during the day, but retains the heat for longer periods in the evening. So, you can enjoy evenings outdoors for even longer and prolong the summer so to speak. You can also have a suitable heat radiator delivered to you on request.

    The solar patio roof thereby adapts to the size and shape of your house: does your terrace stretch around corners alongside the two sides of the house? This is also no problem for the patio roof. You can either protect a part of the roof or the whole patio roof around the corner of the roof.

    The amount of electricity generated by the patio roof is a function of the size of the area that you wish to cover. The more surface area available, the greater the total area of the installed solar modules. and hence the amount of electricity thereby produced.

    Select the freestanding canopy roof, it acts like an airy pavilion and can be erected in the garden completely independently of the house.

    What Is the Best Roof for Solar Panels?

    If you’re looking to acquire solar panels, your first step is to determine whether your roof is suitable for a solar panel system. And if you plan to use solar panels on a home you’re building, roof design should be on your mind as well.

    Either way, roofing styles and materials come in many different types. Understanding how these factors influence solar panel installations can be challenging.

    At Freedom Solar, we’ll give you insights about which roofs work best for solar panels. When you know the best roof for solar panels at your home, you’ll make sure your system stays stable and secure for optimal performance.

    What Type of Roof Is Best for Solar Panels?

    Many types of roofs work great for solar panels, but here are the top types to choose from.

    Mounting Solar Panels on Shingle Roofs

    Shingle roofs are the most common type of roofing on homes and comprise either composite or asphalt shingles. Composite shingles are made of a combination of materials, such as laminate, wood and slate. Asphalt shingles are made of either a cellulose mat or fiberglass, with asphalt added at the end of the manufacturing process.

    While both options are flexible, composite shingles are a bit more durable than their asphalt counterpart.

    Overall, installing solar panels on shingle roofs is quite simple, requiring standard penetrating mounts that easily attach.

    For installation, technicians drill studs into the roof for the solar panels to attach to. Then, they close off the spaces between the panels and studs. Finally, they seal the system with flashings to prevent water from leaking between the roof and panels — and potentially into your home.

    Many homeowners (or homebuilders) use shingle roofing because it’s inexpensive and durable. In fact, shingle roofing lasts between 12 and 20 years, which makes it great for attaching solar panels that you’ll likely keep on your roof for decades.

    Mounting Solar Panels on Metal Roofs

    Metal roofs work great for solar panel installations. If your home has a metal roof with standing seams, technicians can easily attach solar panels because they don’t require any drilling for attachment. And because there’s no need for drilling, there’s no need to hire contractors or crews, which saves you labor costs during the home solar panel installation process.

    Additionally, metal roofs are beneficial on homes and businesses in sunny, warm areas — such as Texas, Colorado and Florida. That’s because metal roofs reflect any light that doesn’t hit solar panels, which keeps houses and buildings cooler.

    One of the main reasons that people choose metal roofing for their homes is because of its impressive life cycle. A metal roof can last anywhere from 40 to 125-plus years.

    On the downside, metal roofs are about two to three times more expensive than other roofing materials and can be noisy during inclement weather. Luckily, if you have solar panels on your home, the panel system blocks some of the noise.

    Mounting Solar Panels on Tile Roofs

    If you have a tile roof, technicians can install solar panels using a standard penetrating mount that raises them slightly above the roof. Because tiles don’t always have uniform shapes, cutting or removing some tiles might be necessary to make way for mounts. In turn, this effort can result in extra labor costs.

    Tile shingles can be made of slate, concrete and clay. Installing solar panels on clay tile presents some hurdles that aren’t present with standard shingle roofs.

    For one, how you move across the roof itself is radically different. Clay tile is highly resilient to the elements, but it’s not so resilient to installation teams’ footsteps. However, Freedom Solar is meticulous when servicing this market — we’re well trained on moving across clay roofs without breaking tiles.

    Although tiled roofs are visually pleasing because they have more range in appearance, they’re typically heavier and more expensive than other roofing materials. (Granted, they’re not as expensive as metal roofs.) Nonetheless, they’re long-lasting and generally more waterproof than other roofing types.

    Tile roofing is widespread in California and Arizona, and it’s growing in popularity nationwide. For example, in areas like Central Texas, preferences are changing alongside spiking population rates.

    Mounting Solar Panels on Tar and Gravel Roofs

    Although most tar and gravel rooftops are flat (some sloped roofs use tar and gravel), you can still install solar panels on them. However, you’ll need to ensure technicians mount and angle your solar panel system at 30 degrees with tilt brackets. This guarantees your panels receive optimal sunlight for energy generation.

    And even though working on flat roofs is easy, you should still consider hiring a labor crew or contractor to mount and orient your solar panel system. This is doubly true if you’re inexperienced with the installation process.

    Many homeowners like tar and gravel rooftops because they’re budget-friendly and have about a 20- to 25-year life span. Plus, they have tight seals to prevent cracks and leaks and provide a strong, flat support surface for your solar panel system.

    What Is the Best Roof Angle for Solar Panels?

    Ultimately, the best roof angle for solar panels is about 30 degrees to maximize energy output. However, that doesn’t mean solar panels won’t work for roofs with steeper or flatter slopes.

    For optimal solar panel performance, you’ll want to add 15 degrees to your latitude in the winter, then tilt the solar panel system to whatever that number is. For the summer, subtract 15 degrees from your latitude and angle the solar panel system accordingly.

    Can a Roof Be Too Steep for Solar Panels?

    Most roofs aren’t extremely steep. Even if yours is, your solar panels will likely still function well enough to produce enough energy for your home. Although the ideal roof angle is about 30 degrees, if your roof tilt is at 40 degrees, this decreases energy generation by only about 1%.

    Any roof that’s over 40 degrees is probably too steep. If full energy independence is your goal, then a solar panel system might not be a feasible addition to your home.

    Solar Panels on Flat Roofs

    You can find solar panels just as easily on flat rooftops as on sloped rooftops.

    The solar panel installation process for flat roofs is usually much simpler than it is for sloped roofs because it’s easier to move around. And that means the installation process is quicker.

    Solar installations on flat roofs don’t need the penetration mounts that sloped roofs need for the system to stay secure. Alternatively, technicians use weighted mounting systems (aka ballast systems) for flat roofs, which don’t require drilling into the roof. This type of system eliminates the need for holes and uses gravity to ensure your solar panel system is stable.

    However, because flat roofs clearly don’t have an angle, technicians use tilt-up brackets to keep your system angled at 30 degrees.

    What Is the Best Direction for Solar Panels on Roofs?

    The best direction for solar panels is south. But if your roof doesn’t face south, you can angle solar panels southeast or southwest.

    Depending on which hemisphere you live in, this answer could be the opposite. For people in the Northern Hemisphere, the sun travels along the southern part of the sky as the Earth orbits throughout the year, so your solar panels need to face south. Similarly, people in the Southern Hemisphere need to angle solar panels north (or northeast or northwest).

    How Much Roof Space Is Needed for Solar Panels?

    The roof space you need for solar panels fully depends on your solar panel type and manufacturer, your home’s size and how much electricity you generally use daily.

    For example, 1 square foot of roof space can generate around 15 watts of solar energy with an average-sized solar panel. A smaller home might need only 200 square feet of roof space for panels. However, larger homes would need more solar panels — and thus more roof space (about 1,000 square feet) — to keep the lights on.

    If you use a lot of electricity, you’ll likely need more roof space to accommodate more solar panels to meet your power requirements.

    Generally speaking, average homes use from 19 to 23 solar panels, with each panel needing up to 18 square feet of space. Your roof should have about 400 to 600 square feet of available space. Plus, consider any skylights, dormers or chimneys that might decrease your total usable roof space.

    Roof Strength Requirements for Solar Panels

    Solar panels and their required mounting equipment, whether penetration or weight mounts, typically weigh 3 to 4 pounds per square foot. Usually, this weight is acceptable for any roof type.

    However, solar panels with weighted ballasts on flat roofs generally weigh a bit more because concrete blocks hold the system in place.

    As long as your home has a fairly new roof that’s in decent condition, weighted ballasts are a fine solution. That’s especially true if you have SunPower solar panels. SunPower offers the lightest solar panels in the industry, at about 33 pounds per panel.

    Are Solar Panels Bad for Your Roof?

    Solar panels aren’t bad for your roof, but you should consider some factors, especially during the installation process. Because drilling is necessary to secure panels to the roof, the process leaves holes that could lead to water leaks over time.

    Solar professionals can ensure installation avoids long-term damage to your roof — and ultimately to your home. Because solar panel systems have a 30- to 35-year life cycle, it’s important that technicians install your panels correctly the first time around!

    And while drilled holes in your roof never seem appealing, numerous safety measures help ensure drilling won’t result in any damage. We’ll tell you a bit about the process.

    First, technicians use drilled holes for lag bolts, which secure the solar panel system’s mounting rack. To avoid water leakage, technicians fill the holes with a sealant. Then, they surround the lag bolts with metal or plastic flashings — a sort of shield that fits under whatever roof tile type you have. Finally, they seal the flashings air-tight with either tar or another durable material to ensure your roof doesn’t suffer damage or seepage.

    Solar Panel Design Considerations: How To Get the Best-Looking Solar Panels

    If you’re worried that solar panels might make your home look … not as appealing as you’d like, remember that you have options!

    For example, black shingles typically look best with solar panels. Although black absorbs sunlight, which can make your home feel a bit warmer, darker roofs help blend the appearance of solar panels so that they don’t drastically stand out.

    At Freedom Solar, we offer SunPower solar panels in varying options. That said, their signature black aesthetic features all-black solar cells and antireflective glass, which look chic and sleek on any roof type.

    And the benefits go beyond aesthetics. Whatever type of roof or solar panels you have, they’re a good look because they represent your character, values and commitment to sustainability.

    Contact Freedom Solar for Your Solar Panel Needs

    To learn more about solar panels or the installation process for your home or business, contact Freedom Solar today! Call us at (877) 795-0577, or submit an online inquiry. We’re ready to help you go solar anytime.

    Freedom Solar also has it’s own solar panel repair and maintenance service department if needed. Our experienced team can maintain, repair and upgrade any system for maximum energy production and efficiency

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