A specialized roof that works better than a standard roof when it comes to reflecting more sunlight and absorbing lesser heat is called a cool roof. A cool roof could be made out of reflective shingles or tiles, a sheet covering, or paint. Almost any kind of structure can benefit from having cool roofs. However, there are certain factors that need to be considered before deciding to install one.
A Myrtle Beach cool roof can be compared to donning a light-hued garment, which helps in keeping you cool on a warm sunny day. Dark or regular roofs could hit temperatures of at least 150°F during the summer season. On the other hand, a cool roof can stay for at least 50°F cooler under similar conditions. It could also help you cut costs and save energy as it utilizes less air conditioning.
Advantages of Cool Roofs
A cool roof can help a building as well as the people inside it by:
- Lowering energy expenses by cutting down air conditioning needs
- Enhancing indoor ease and comfort for spaces that aren’t air conditioned, like covered patios or garages
- Minimizing roof temperature, which could prolong the roof’s life expectancy
Aside from the building itself, cool roofs could also help the environment, especially if a lot of buildings within a community have them. Cool roofs could:
- Lower the urban heat island effect or commonly known as the local air temperatures
- Reduce peak electricity need, that could stop power blackouts
- Decrease power plant byproducts, such as sulfur dioxide, carbon dioxide, mercury, and nitrous oxides, by lessening cooling energy utilization in buildings.
Different Types Of Roofs And Tips To Make Them Cool
There are numerous kinds of roof systems on the market these days, however, the surface that is exposed to sunlight is the one that decides if it is a cool roof Myrtle Beach. You can make a roof cool by choosing the right surface.
Cool roof coatings are special or white reflective pigments that bounce off sunlight. Coatings are comparable to thick paints that could shield the surface of the roof from ultraviolet rays as well as chemical deterioration, and a few provide restorative features and water protection. These products are usually offered for almost all types of roofs.
Low Sloped Roofs
Single-ply membranes are pre-constructed sheets rolled and attached to the roof using mechanical fasteners, chemical adhesives, or put in place using ballasts.
How can they become cool roofs: redeveloped or re-coat black membranes so they will become reflective.
Built-up roofs have a base sheet, fabric support layers, and a dark-colored protective surface layer.
How to make them cool roofs: The surface layer could be created in various ways, and every one of them has cool options:
- Replace reflective marble chips or perhaps gray slag for darker gravel in a flood coat of asphalt
- Make use of reflective mineral granules or perhaps a factory-added layer instead of a dark coating over a mineral surfaced sheet
- Put on a cool coating right on top of a darker asphaltic emulsion layer
Improved bitumen sheet membranes have at least one layer of rubber or plastic material along strengthening fabrics and are also surfaced with mineral granules or maybe a smooth finish. These may be used to surface a hybrid roof.
How to make them cool roofs: Add in a cool roof coating at the manufacturing plant.
Spray polyurethane foam roofs are built by combining two liquid chemicals that expand and react to generate one solid part that sticks to the roof. Foams are extremely prone to moisture, mechanical, and ultraviolet damage, and depend on a protective coating.
How to make them cool roofs: The protective layers are generally already reflective and provide cool roof functionality.
Steep Sloped Roofs
Shingle roofs have overlapping panels created out of different materials like fiberglass asphalt, metals, wood, and polymers.
How to make them cool roofs: Purchase cool asphalt shingles that utilize uniquely covered granules that work better when reflecting UV rays. Other sorts of roof shingles could be lined at the manufacturing facility or in the field so they would become more reflective.
Tile roofs could be created out of clay, concrete, or slate. Tiles could be glazed to offer waterproofing functionality or coated to give personalized surfaces and color attributes.
How to make them cool roofs: A few are typically reflective enough to get cool roof specifications, and surface treatments may turn tiles possessing low solar reflectance into cool roof tiles.
Steep and Low Sloped Roofs
Metal roofs can be obtained with natural metallic finishes, granular coated surfaces, or perhaps oven-baked paint finishes.
How to make them cool roofs: Unpainted metals are usually great solar reflectors however weak thermal emitters, so they hardly ever meet low slope cool roof specifications. Painting metal roofs could boost its solar reflectance as well as their thermal emittance, permitting it to attain cool roof functionality. On the other hand, you could put on cool reflective finishes.
You should also think of putting in a green roof. Green roofs are best for urban structures that have shallow pits or flat roofs and may consist of anything from standard plant layer to a garden. The key reasons for making use of this type of roof are addressing storm water as well as experiencing rooftop open space.
Green roofs also offer insulation, reduce the demand for heating and cooling, and could decrease urban heat island effect. This type of roof could be costlier to put in place compared to other effective roof alternatives, so you need to thoroughly evaluate your property and talk to a professional roofer Myrtle Beach prior to the installation of a green roof.
Determining If You Should Install Cool Roofs
When determining whether or not to get a cool roof, you will have to find out if the cost will warrant the energy savings. The volume of energy that you will get to save relies on many factors like your home’s environment and climate, your roof’s insulation status, the kind of roof you’ve got, as well as the efficiency of your air conditioning system.
In case you are constructing a new house, you could make a decision during the preparation stage which kind of roof to put in and whether or not this must be a cool roof. If you would like to change a current roof into a cool roof, you’ve got 3 standard choices:
- Reconstruct the roof using unique heat-reflective material
- Recoat the roof using tile coating or other waterproofing surfaces
- Change the roof with a cool one
In case your roof is in weak condition or close to the end of its life, it is almost always advisable to recoat, swap, or reconstruct the roof.
Energy and Cost Savings
A cool roof is not always more expensive than a standard non-cool roof, particularly if you’re putting in a brand new roof or changing a current one. However, transforming a regular roof that is in great shape into a cool roof could be pricey. Major roof costs consist of upfront unit installation like materials and labor and recurring upkeep, which includes repairs, recoating, as well as cleaning. Other cool roof expenses include specialized labor and materials.
Cool roofs could help you save a good amount of money in a number of ways including rebates, incentives, as well as energy savings, reducing the need for HVAC equipment, and prolonging the roof lifespan. A good method to calculate the amount of energy you’d save by mounting a cool roof by using a Cool Roof Calculator.
Environment and Climate
Your climate is a crucial factor to consider when determining if you should have a cool roof. Cool roofs obtain the huge cooling savings in hotter climates but could raise energy expenses in colder climates because of lesser beneficial wintertime heat gains.
In moist and warm places, cool roof surfaces could be more prone to mold or algae growth compared to hot roofs. A few roof coatings may have unique chemicals that stop algae or mold growth for a couple of years.
In cold environments, roofs can build up moisture via condensation, and it’s also likely that cool roofs may become more vulnerable to amassing moisture compared to dark roofs of the exact same style. Condensation could be prevented through appropriate design methods.
Know more about cool roofs by calling Contract Exteriors, a trusted professional roofing company.
Myrtle Beach, SC