All About Roofers Gazette News

Cooling Your Roof: Here are Some Ways

Feb 11

Cooling Your Roof: Here are Some Ways

By Katy Roof Repair


The temperature of a typical black roof's top can rise to 50 degrees Fahrenheit (10 Celsius) above the surrounding temperature on a bright sunny day. It's not surprising then that the air inside large metropolitan areas with many blocks of dark, heat-absorbing rooftops maybe 6 to 8 degrees warmer than the rest of the city.


Are you ready to convert your old hot roof into a cool, new roof? Continue reading to discover ten ways you can keep your roof cool.


6. Spread the modified Bitumen on the ground.


The cool roof requirements will depend on the roof's slope.

Cool roofs are possible on virtually any type of roof. Even existing roofs can easily be transformed to cool roofs through the addition of coatings and surface materials.


You can determine the slope and cost of roofing materials for your home or building by determining the slope. After that, you will choose the cool roof product which best suits your architectural style, budget, slope, and budget.


Modified bitumen roofs can be used for low- or flat-sloped roofs. Modified bitumen roofing consists of a membrane made up of rubberized or plasticized asphalt sheet that is held together with rolled reinforcing cloth and attached to the roof deck with hot adhesive or asphalt.


5. Choose a membrane made with just one ply.


A single-ply roof membrane is another cool type of roofing material for low-sloped rooftops. Single-ply membranes consist of vinyl or plastic sheets prefabricated with solar reflective coatings. The sheets are rolled onto roof decks and then secured using a combination of chemical adhesives or mechanical fasteners. The single-ply membranes provide cool roof characteristics without the need for additional coatings.


4. Strengthen it


Built-up roofing is the traditional, tar and gravel roof. It's a popular choice for roofs with flat or low slopes. On top of a bitumen sheet or asphalt base sheet, a protective coating of gravel, mineral granules, or another form of aggregate rocks is applied.


3. Roof cooling costs


A cool built-up roofing system will cost you around $1.20 to 2.15 per square ft. It is nearly the same as a traditional roof, but the third option, which involves applying coatings on an existing surface, can be slightly more expensive, at $.80 or $1.50 more per square ft.


2. Give your body a cool coat


Good condition low-sloped roofs make the best candidates for cool roofing coatings. Source: Environmental Protection Agency. Cementitious coatings that are made up of concrete or ceramic particles and Elastomeric coatings which contain additional polymers that are less brittle to building surfaces can be separated into two categories.


Elastomeric and cementitious coatings are both effective in improving the solar reflectivity on roof surfaces. Elastomeric coats are water-resistant, while cementitious must be applied over roof materials that have been waterproofed completely [source: EPA].


1. Select the best shingle


You can substitute standard fiberglass asphalt shingles with cool asphalt shingles to help reflect sunlight better on steep-sloped roofings like the ones found in most American homes.


You can substitute standard fiberglass asphalt shingles with cool asphalt shingles to help reflect sunlight better on steep-sloped roofings such as those on American homes.


To improve the sunlight reflection on steep-sloped roofs as seen in most American homes, standard fiberglass asphalt shingles can be replaced with cool asphalt. You can apply coatings to shingles made of wood, polymer, or metal to improve their solar reflectivity. [source: Department of Energy].



Katy Roof Repair

Katy, Texas

(213) 554 1890