How do you know if you need a roof coating? What are the signs? When do you put the roof coating on your roof?
It's important for you find a good coating for your roof: you want a coating that will protect your roof from the elements and make it last even longer than it traditionally would. You have several main choices for roof coatings. There are pros and cons to each. Roof coatings can be put on your roof at any time during the life of your roof. However, it's usually best to put the coating on the roof when your roof is replaced or if your notice any leaks in your roof.
• Acrylic latex coatings–These types of coatings are liquid based and are available in many colors.
Pros–They can be used on asphalt or metal roofs, and can be made to look as if they're really asphalt or metal. Acrylic latex coatings can come in any color you want.
Cons–Acrylic latex coatings are fairly high in price.
• Asphalt coatings–They come in three main types.
• Aluminum pigment coatings–This coating is used to give a reflective or shiny appearance to your roof. You can use it on asphalt or metal roofs.
Pros–The reflective coating repels heat and keeps heat out of your home. The heat repellant also keeps the roof protected, as heat won't get to the roof as easily.
Cons–The cost of a reflective coating is higher than other coatings for asphalt.
• Emulsion coatings–This coating type is basically asphalt pieces mixed with water and clay. You can use this coating on asphalt and metal roofs.
Pros–This coating won't blister. It will also chalk slowly.
Cons–You need to make sure this coating type has ample drying time. It needs to get plenty of heat, sun, and proper humidity in order to dry. You need to make sure it's thoroughly dried before it is subjected to rain water. You also need to make sure your roof surface is clean and free of debris before applying it.
• Solvent coatings–These coatings are made of asphalt combined with petroleum solvents and asbestos. They can be used on cement, metal, or asphalt roofs.
Pros–You can use this type of coating during many different temperature gradients.
Cons–You need to be sure your roof is completely free of moisture before applying this coating. It is known to blister and bubble if there's any moisture underneath.
• Alkyd-base aluminum coatings–These are made from oil alkyd resins and petroleum solvents. They are mixed with aluminum pieces and some minerals. You can use this coating types on metal or masonry roofs.
Pros–These coatings are reflective in nature and repel heat from your house and your roof.
Cons–They are among the most expensive roof types. If the roof you are applying the alkyd-base aluminum coating to is moist at all, it can blister and bubble.