The torrid Indian summer sun beats down on the roofs of buildings, which heat up and radiate that heat into the homes that are immediately below the roof. This results in a considerable amount of heat gain in the upper floors of the building, making them uncomfortable, even unbearable, to live in.
The rise in indoor temperatures contributes to greater air conditioning requirements and higher electricity costs, and increased discomfort in areas that are not air conditioned, such as the kitchen and bathrooms. Here are some techniques to drop the temperature by some degrees on your roof.1. Grow a roof garden One of the best ways to keep the roof cool is by growing your own rooftop garden with green grass and potted plants.
The green roof shades the building from direct sunlight while the mud within the potted plants and the lawn absorbs most of the heat that hits the roof. Before going for a roof garden, make sure that the roof is properly waterproofed so as to prevent any type of water seepage through the external walls or roof slab, which may cause damage to the building.2.
Paint the concrete floor with cool roof paints. These paints provide good thermal insulation by reflecting the sun’s rays and keeping the indoors cool. Brands such as Dr Fixit have such products on offer.A cost-effective way to keep the roof cool throughout summer is by coating the floor with white lime wash, locally known as chuna, One drawback with using lime wash is that it gets washed away during the monsoon season, hence reapplication is required every summer.For a more permanent solution one can install white ceramic or porcelain tiles on the roof.
Find roof tiling experts near you 3. Add shade The roof slabs are made of concrete, which is a very dense material – it retains heat for a very long time and then transfers it to the indoors. The temperatures can be controlled by creating shade on the rooftop because shaded areas are cooler than the surroundings.
Go for high walls or trellises along the perimeter of the roof, like in the photo here; this is an interesting way to shade the roof. Introduce design features, such as pergolas with creepers, to create shade.
In this image, just see how a semi-permanent structure with canvas awnings in different shapes shades the rooftop. I love the way these awnings raise the aesthetic appeal of the terrace.
Tip: Another way to reduce roof temperature is by spreading bundles of damp straw or hay on a plastic sheet on the roof. Sprinkle water on the straw to cool the roof. Take a look at more roof designs 4. Go for heat-resistant flooring
Go for flooring materials such as wooden deck tiles or terracotta tiles that do not absorb or transfer as much heat to the lower floors and are comfortable to walk on even during the peak summers.Brands like Johnson Endura have introduced cool roof tiles that reflect most of the solar heat. These tiles work as an insulator that prevents heat from entering the top floor rooms.
5. Install solar panels Alternatively, one can cover the roof with solar panels. The solar panels comprise photovoltaic cells, and block the heat from hitting the roof, as in his example. Instead, these panels capture the sun’s energy and convert it into electricity.
- 1 How do you cool down roof space?
- 2 What is the cheapest way to cover a roof?
- 3 Does painting roof white reduce heat?
- 4 Why can I see daylight through my roof?
- 5 How do you get sunlight through your roof?
How do you cool down roof space?
How do you put a good roof ventilation system together? – A good ventilation system isn’t too complicated. It consists of vents and a fan. The vents let fresh air in and stale air out. The fan speeds up the process. Universal Fans stocks a range of products for this purpose, including super efficient solar powered fans and mains-powered roof ventilators.
The trick to making sure that your ventilation system works well is putting the fan and vents in the right spots. Install the fan high in the roof because warm air rises. From a high point, the fan will be able to move the warm air. The out going vents should also be placed high in the roof. The fan draws in fresh air from the lower vents, pushing the warmest air (highest in the roof) out through the high vents.
Of course it’s unusual for a roof to have no existing ventilation. It’s important to make a thorough assessment of the existing spaces where air may enter and exit the roof cavity. This includes gaps between tiles and weatherboards. Place incoming vents low in the roof, ideally in a cool place. Summary – Mechanical ventilator at highest point of roof to extract warm air. Passive vents under eaves to allow for fresh (ambient temperature) air to enter the roof space. The combination of both results in a noticeably lower temperature during summer. Length of Roof x Width of Roof x 1/2 Height of the Roof = m3 roof size m3 roof size x Air exchange Target (we recommend 10) = total m3/hr volume required
Which is best for roof cooling?
Terra-Cotta Tiles and Ceramic Roofs – There’s a reason this roofing material is so popular throughout the Southwest, and it has nothing to do with its appearance; although, terra-cotta does make an excellent choice for those hoping to capture a bit of Spanish colonial style.
The words terra-cotta literally translate to “cooked earth” in Italian, and it’s that baking process — in a kiln at high temperatures — that gives these tiles their weather-resistant properties. In fact, clay tiles have been known to stand up to the heat for centuries, regularly lasting as long as 50 years or more.
The curved shape of the tiles makes a difference, as well, allowing air to circulate below the surface, which keeps roofs and interiors cooler. The only drawbacks for this stylish energy-efficient choice are the weight of the tiles and the material costs.
Clay tiles weigh somewhere between two to four times as much as conventional asphalt roofs, so many homeowners find they need their roofs reinforced before they can install terra-cotta on their homes. Furthermore, they’re also one of the most expensive materials because they run around $700 to $1,000 per square (that’s 100 square feet if you’re not up on your roofing lingo).
Still, considering their long lifespan, they may just make back your initial investment.
What is the cheapest way to cover a roof?
3 more things to consider when deciding which asphalt shingle is right for you – Now you know that asphalt is the cheapest roofing material for your roof replacement. You also just learned which asphalt shingle is right for someone on a tight budget. While cost is the main thing every homeowner thinks about, there are a few more things to consider when deciding which asphalt shingle is right for your roof replacement.
Does roof painting reduce heat?
ASIAN PAINTS FOR HEAT REDUCTION As a significant amount of heat is reflected away, it not only cools down the surface area but also helps in decreasing the overall temperature of the building structure.
Does painting roof white reduce heat?
Paint Your Roof White, Bring The Mercury Down Bhubaneswar: More and more people across the country are painting their roofs white in what looks like the best way to escape the unapologetic summer heat. “We have been painting our roofs every year for the last 10 years and the difference can be felt right away – our top floor feels as cool as the ground floor.
It has helped us cut down on electricity bills as well,” said Kalpana Mishra, a retired lecturer living in Cuttack. “It is a huge relief and on some days we can even do without AC,” says Kritika Behera, a Bhubaneswar resident who has been painting her roof white for three years now. How does it work? This age-old technique relies on the simple principle that darker colours absorb more light and heat, while lighter colours reflect it away.
White being the lightest colour, reflects up to 90 per cent of sunlight (as opposed to traditional black roofs which reflect only 20 per cent of sunlight) according to whiteroofproject.org and keeps interiors cooler by around 7-15 degrees Celcius. Great for the environment? A hot roof (grey or black) also radiates heat in the evening.
By painting the roof white, we can prevent this heat from heating up the city too, something termed as “urban heat island effect”. According to Lawrence Berkeley National Laboratory in Berkeley, “White roofs cool the world, offset CO 2, and delay global warming” by reflecting the heat back to space.
It also reduces air conditioning bills by 20 per cent. A research at the Swiss Federal Institute of Technology (ETH) in Zurich said that painting every roof and surface white can help reduce overall temperatures of cities by 2-3 degrees Celsius. The city of Los Angeles painted its roads white to reduce the urban heat island effect. Los Angles Streets Painted White White roof options:
Slaked Lime or choona (Lasts a season)
Slaked Lime mixed with adhesive (usually Fevicol ) is the cheapest solution. It is very effective in keeping the heat away but it doesn’t last when it rains heavily.2. White cement paint (Lasts a year) This is also affordable but lasts longer than slaked lime. White Cement Painted Roof. Photograph: Suprakash Mishra 3. Elastomeric Paints (Lasts over 7 years) If you can afford and don’t want to reapply every year, elastomeric paints such as Dr. Fixit Newcoat, Asian Paints Damp Proof, Xcel Coatings Roof Paint, etc are the best solution for you.
This paint can last around 5 years and will also water-proof your roof, helping increase its life span. Some companies like Asian Paints give a 5-year warranty for their elastormeric roof paint, which costs Rs 30 per sqft, including labour charges. Elastomeric paints cost 5-7 times what cement paint does.4.
Ceramic Tiles (Lasts almost a lifetime) Putting white ceramic floor tiles on the roof is one permanent solution. Make sure to install vitrified double charged tiles with proper grouting, or else the tiles can break due to expansion and water absorption.
Glazed tiles with high reflective index work better. Tiles can make your roof water resistant and increase life span as well as make it more useful. Cost: Rs 70 per sqft (starting price).5. Green Roof Growing grass and plants on your rooftop can also help reduce the heat as well as generate fresh oxygen.
But make sure your roof structure can withstand the load and also waterproof your terrace properly before implementing. : Paint Your Roof White, Bring The Mercury Down
Why can I see daylight through my roof?
Signs that your Roof Might Need Replacing A problem with your roof can easily go undetected as you busy yourself with everyday life, but neglected repairs can cause long term, serious problems throughout your home that are difficult and costly to fix. Making regular checks (a minimum of twice a year) can help you find faults in your roofing and avoid potential disasters around the rest of the house.
Signs of Water Damage- Water damage in the upper storeys of your property is often a clear sign of a damaged roof, but can easily be overlooked. Watermarks, damp patches, mould and mildew can be blamed on a poorly ventilated room, but can be because of a roof in need of repair. As water can leak into a property from the smallest of holes, a gap or crack might not be easy to see initially. More obvious signs of water damage include sagging or bowed parts of the roof. Outside light is visible- If you can see daylight through your roof tiles in your attic or loft space, then it is likely that your roof is in need of repair. Even small gaps that allow daylight to fall through need attention, as this could be the start of a larger problem.
Missing Roof Tiles- If there are any roof tiles missing, then there is an obvious problem that needs to be dealt with straight away. A missing tile might not seem like an immediate issue during a period of dry weather, but can be the beginning of more serious problems. From water penetration to providing easy access to pests, a missing roof tile should be replaced quickly and properly. Parts of Tile in the Gutters or on the Ground – Parts of tiles, or excessive amounts of granular material on the floor or in the gutters are a clear sign of a roof in need of repair.
Replacement Roofs with Metrotile Should you find that you need to replace all, or part of your roof, then it is best to choose a long term roofing solution, rather than a short term fix. Metrotile’s roofing is perfect for those needing to replace part or all of their roof.
How do you get sunlight through your roof?
More Benefits of Sunlight –
Provides sunlight and natural ventilation in the house. Offers fresh air and remove polluted air out of the house. Reduces the cost of energy/electricity and ceiling in the house. May be used to exit in case of fire or in any emergency in the house.
; The following measures should be taken during construction of water tank to prevent the leakage. These preventive meas Flat roof will be a better choice for which they want full use of building space. It appears flat with a slope for getting rid of water pounding. Flat roof can be used as an outdoor area for amusement or recreational purposes. A kind of roof makes a vital and lasting statement about your house. The right roof should give you a secure home and also last several years, even a lifetime. Understanding about different roofing shingles can gives you the right choice about your house. Every shingle has its own benefits and drawbacks. Here are a few of the more popular types of roof shingles in the market. Modern Ceiling Design ideas are one of the most beautiful things that can happen to your home design. Here view some pictures of home Ceiling designs. 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A solid roof on building is very important for everybody living in the house. The roof should be constructed in a way that assures you great safety. Here are given details about different types of roofing. This roofing is very versatile and provides great protection. Maximum height should not be more than 4 meter while minimum height for non A.C. building is 2.75 meter. Kota stone flooring is a subtle blend of grandeur and luxury giving the interior and exterior a gorgeous look. To get maximum ventilation and natural light in your house, make sure the building is properly oriented. Orientation of building saves energy and provides comfortable living as well. This article tells you about various factors and benefits of building orientation. Preview some of the most impressive pictures of kitchen from GharExpert Gallery. A solid roof on building is very important for everybody living in the house. The roof should be constructed in a way that assures you great safety. Here are given details about different types of roofing. Frames of doors and windows are most important parts of your doors and windows. They are available in different size, height, width and shapes. Frames hold locks and hinges and support door and windows to shut and open easily. Here is what you need to know about different doors and windows frames. 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Can excessive sun exposure damage your roof?
Sun Affect Your Roof – Asphalt Damage: Shingles with asphalt coatings are especially susceptible to UV radiation from the sun. Asphalt quickly heats under the sunlight leading it to warp, run, or wear out. Shingles under direct sunlight more quickly corrode and have a shorter lifespan.
Cracking and Warping: Plastic and metal components to your roof and home are highly susceptible to sunlight damage. These materials heat more quickly and can eventually become warped or cracked. Brackets and flashings are two examples of components that may crack or warp under intense sunlight. Bleaching: Long-term exposure to sunlight can also lead to bleaching.
Bleaching is when the color begins to fade or change due to sunlight exposure. This process can leave you with a visually unappealing roof causing a decline in your home’s value.