The best way to reduce heat is by spraying polyurethane foam insulation. You can spray 5 ‘ of 1/2 LB. closed cell foam on the underside of the cement panel or you can spray 2’ or more of 3 lb roofing foam on the top of the panel, or both.

How do you keep a sheet roof from getting hot?

Top insulation – Terrace gardens will prevent heat absorption. The plants and grass shade the roof. The earth will insulate the roof. Wetness in the mud will certainly cool the roof. However, consult your structural engineer if the roof can carry the garden load and a landscape architect to design a maintenance-easy garden.

Traditionally, “Surkhi”, a mix of brick bat, lime, maravajra (natural adhesive) and Antvalakai (gum fruit) was used as weather proof layer to protect the roof from getting heated. It is not popular nowadays because of lack of skill and know-how. Weather proof clay panels are commonly used for insulation.

Each clay panel comes with three tube-like holes. This void helps to avoid heat transfer. Besides, clay does not absorb and retain heat too much. It is laid over the concrete roof with cement mortar. Foam concrete panels can be used instead of clay panels mentioned above, in a similar manner.

The sponge-like perforation in the lightweight concrete block prevents heat transfer to the roof slab. A layer of 40 mm gravel (railway jelly) laid on the roof can effectively prevent the roof from getting heated. The gravel shades the roof by day. The polygonal surface of the gravel makes minimal contact with the roof.

This prevents heat transfer. At night, the gravel gives out the heat to the cool air. The disadvantage of this remedy is that we cannot walk comfortably on the roof to use the terrace. In Jodhpur, Rajasthan, roofs are painted white with lime. White lime reflects a great deal of heat that will otherwise be absorbed by the roof.

However, the top will have to be painted almost every year. Many manufacturers use the same technology and offer roof coatings that will last for many years. While some coats are white the others are silver in colour to enhance reflectance. The vendors claim 5 degree reduction of heat. Bituminous sheets with silver coating on one side are available for top insulation of the roof.

They not only reflect heat and insulate but also protect the roof from water leakage. They are about 8 mm thick and have a silver coating on the exposed side. They are glued to the roof with bitumen liquid. Silver coating reflects the heat and the bitumen insulates.

Do concrete houses retain heat?

Concrete @ your Fingertips Thermal mass of concrete When we touch concrete we feel it as a ‘cold’ material. However concrete is also used in electrical night storage heaters. Why? The answer is ´Because of its high thermal mass´. The thermal mass, or heat capacity, of a material plays an important part in designing an efficient and comfortable structure.

1. It is a measure of how much heat a material can hold.
2. Water has a heat capacity of 4.2 kJ/kgC whereas many building materials are in the range 0.8 to 1.3 kJ/kgC.
3. This property is significant for heavy, high thermal mass materials where the heat capacity is calculated from the volume and the specific heat of the material.

The ratio of the surface area exposed to the volume affects the rate at which the heat is absorbed and released. Concrete can be used to absorb heat to keep the interior of a building cool throughout the day, but overnight natural ventilation can be used to cool the concrete down and warm the room space.

The pattern is repeated each 24 hours. Approximately 50% of UK CO 2 emissions come from heating, lightig and cooling buildings. Clearly reducing the need for air-conditioning or space heating can have a significant impact on this figure. (See also Environmental aspects/Structure and associated sub-entries.) Ideally modern buildings should be constructed in such a manner as to minimise temperature build up in the room space during warm weather and yet prevent the loss of this excess heat in cold periods.

To achieve this, a combination of insulation to exterior walls is required for colder weather and a high thermal mass to act as a heat sink for hot weather. Concrete has a high thermal mass with properties similar to brick and stone. It is possible to absorb heat from the atmosphere in warm weather and release it during cooler periods, e.g.

overnight. This is known as the ‘thermal flywheel’ effect. In a passive concrete design the cooling capacity of concrete can be up to 25W/m 2 and with an active system, e.g. by ducting of air through a concrete slab, up to 40W/m 2 can be absorbed. As well as being able to act as a passive air conditioning system for buildings, concrete and cementitious-based products have good sound insulation and deadening properties For further information see The thermal mass of concrete, published in CONCRETE in October 2003, p52 and The changing climate for thermal mass, published in CONCRETE in June 2005, pp.7–9.

Copies are available as free downloads from the Members Area of the Concrete Society web site. : Concrete @ your Fingertips

Do concrete houses get hot?

It is made out of concrete blocks and cement floors. So it has poor insulation and it has a low, exposed roof. So the structure gets very very warm in the summer even when its reasonably cool outside. The temperature difference between the inside and outside can easily be 10 degrees or more.

How can I keep my slab cool in summer?

Paint It White In much the same way the ice/snow reflects UV rays instead of absorbing the heat like the oceans do, white roofs/terraces reflect the heat and help keep the house cool. This is why a coat of white lime wash on a flat terrace can help the slab to remain cool throughout the summer.

Which type of roof will keep the room cooler?

White Roof Coatings While changing the reflectivity and color of your roof will help to keep your house cooler, looking for a material with a high solar reflectance will come in handy. The best materials are usually white and smooth or even using foam roofing instead of shingles.

How do you reduce wall heat?

8 Natural Ways to Keep Your House Cool during the Summers – Berger Blog If you resort to cranking up the air conditioning to cope with the sweltering summer heat, you are alone. In fact, going by some reports, India’s cooling energy consumption is said to grow around 2.2 times by 2027, perhaps a desperate attempt to deal with rapidly warming temperatures around the globe. Keep the windows open strategically to allow cross ventilation. The best time to do this is from 5 am to 8 am and 8 pm to 10 pm. During these times, the air is pleasant and with proper ventilation, the heat trapped within your house can escape. The temperature drops drastically at night in the summer so keep the windows open to make the most of the cool breeze. Windows can absorb the heat from outside and make your interiors extremely hot. It is important to block out the sunrays by installing blinds to keep the unwanted heat away. Close your blinds from 11 am to 4 pm. Invest in breathable and light materials like jute screens or bamboo shades. If you have ever used a leather couch in the summer heat, chances are you must have experienced how hot and sticky the material can feel against your skin. Silk, satin, leather and polyesters tend to absorb heat easily. When it comes to textiles and bedding, opt for linen and cotton upholstery. The dry summer weather conditions make it a good time to paint your walls. Give your home a seasonal upgrade that will look fresh throughout the year. Light colours like pastel yellow, aqua, millennial pink, beige and white work well. The task of painting your house will also give you an opportunity to evaluate your walls and prepare them for the monsoon season. Opting for a UV reflective paint for your roof is a smart move since it can help keep the temperature down by a few degrees throughout the house. Berger Weathercoat RoofGuard is a waterproofing coating that is specially designed for the roof. It features heat reflectance technology with good SRI property that provides a cooling effect.

• The coating helps reflect harmful ultraviolet rays, limiting heat absorption and leading to lower energy costs and negative environmental impact.
• Berger PU RoofKoat is an environment-friendly waterproofing compound for exterior wall and roof that has advance UV resistant property, helping your exteriors reflect heat instead of absorbing it.

For terrace, roof or parapet, Berger WeatherCoat Kool & Seal reflects infrared radiation to reduce heat build-up. If you live in a hot and humid climate, this coating will give your walls longevity, keeping dust, moisture and bacteria at bay whilst making your home interiors cool and fresh. While you are checking out the roof, consider more energy-efficient options for the walls too. Better insulation and cooling properties will help keep your home cooler in extreme heat. If you’ve ever wondered why white coloured clothing is recommended during the summer months, there is a scientific reason behind this.

Light colours reflect heat and dark colours absorb heat. Similar goes for light coloured walls too. If you live in a warm and tropical climate, it is best to switch your wall colours to non-heat absorbing shades like whites and pastels. Black, red and other dark hues absorb exterior heat, rapidly warming up the house.

One of the most effective ways of keeping your house cool in the summer months is to opt for cooling and UV-reflective paints in light colours like Berger WeatherCoat range. Tip 7: Bring in greenery Plants like the areca palm tree, aloe vera, and ferns can keep indoors cool since they have the ability to absorb toxins in the air. Since these plants also look aesthetically pleasing, they look great in any corner. Strategically placed shady trees and plants on the east and west sides of the house will block out the sun’s rays. Regular lights are not energy efficient and radiate a lot of excess heat which can quickly warm up the house. Use energy-efficient lights like LEDs or CFLs in high use areas. Turn off lights when not in use, especially incandescent light bulbs. Most electronics that use electricity emit heat even when they are not in use.

Unplug electronic equipment when they are idle to reduce the amount of heat they generate. Even in the hottest weather conditions, it is entirely possible to remain comfortable indoors with little to no use of air conditioning. By using these naturally cooling strategies, you can not only save money but ensure that you are doing your bit to protect the environment by being energy efficient.

With global warming concerns increasing, hot weather problems are said to arise in the future and it is essential to implement solutions that focus on short term comfort while delivering long term impact. : 8 Natural Ways to Keep Your House Cool during the Summers – Berger Blog

Do cement houses stay cooler?

Discover Solid Advantages of Concrete Homes If your idea of a concrete home is a building that resembles a battlefield bunker, it’s time to reconsider. Most concrete homes look the same as conventional wood-frame homes these days, but there’s a lot more to them than meets the eye.

1. Concrete houses are constructed with a variety of methods.
2. Most — especially in storm-prone coastal areas — have traditional concrete block walls.
3. But more and more builders are choosing foam-insulated concrete forms (ICF), with their added insulation value and ease of use.
4. Other approaches include cast-in-place and removable concrete forms (RCF), panel systems, and newer methods featuring aerated or sprayed-on concrete.

However they’re made, concrete homes offer powerful advantages to homeowners: Strength. Able to withstand 250-mile-an-hour winds and wind-borne debris, the storm resistance of concrete homes is the No.1 drawing card for people in hurricane and tornado zones, says Dave Pfanmiller of Security Building Corporation, an RCF home builder in North Carolina.

1. Energy efficiency.
2. Thanks to high energy prices, this benefit is “a close second” in attracting buyers to concrete homes, Pfanmiller says.
3. The thermal mass of the walls and the tight seals at joints enable concrete homes to excel at keeping conditioned air in and extreme temperatures out.
4. Temperature control.

The tight building envelope also means concrete houses have fewer hot and cold zones and less draftiness. Noise control. Concrete walls filter out noise from outside. Durability. Concrete does not harbor the insects and rot that can cause frame houses to deteriorate, Pfanmiller says.

Concrete houses have a building life expectancy of centuries. Fire resistance. If the house catches fire, the concrete won’t burn or enable the fire to spread. Green construction. Not only do they require less energy for heating and cooling, but concrete-walled houses also conserve resources by using fewer wood products.

Typically they incorporate lumber only for interior framing. They can provide healthy environments with fewer air-borne allergens, molds and contaminants than most frame houses, and they have cleaner indoor air. Economic value. Although concrete houses usually cost more to build than frame houses, once constructed, they are veritable saving machines due to lower utility costs.