Roof Rating System

A standard fire test is used to determine the fire rating of a roof covering.

Roof rating system.

In cr s roofing tests we found that some shingles are more than twice as strong as others that. Class a class b class c or unrated. As you research shingles check our comprehensive ratings to see what the best roofing lines are. Your roof can have one of four fire ratings classifications.

This test evaluates the following performance criteria. The cool roof rating council accepts test reports from approved testing laboratories and then compiles the information in an easily accessed database. A class a roof is ideal for fire protection and may be required by your building codes depending on your place of residence. Fire ratings may pertain to resistance to fire from above the roof system the familiar class a b or c ratings or fire exposure from the building interior the underside of the roof deck.

There are experienced inspection companies system suppliers and organizations that provide opinions on what ratings should be used for roofing inspections. We have collected reviews on more than 30 different brands of roofing shingles. Numbers can also be combined with a color rating as a visual indicator. Roofing systems must meet or exceed building codes and insurance requirements.

One principal aim of the guideline is addressing the need to certify existing buildings. These tests may be conducted at ul inc fm global or any other certified testing laboratory. The cool roof rating council was created in 1998 to develop accurate and credible methods for evaluating and labeling the solar reflectance and thermal emittance radiative properties of roofing products and to disseminate the information to all interested parties. A new rating tool roofpoint is designed to assess energy efficiency environmental impact longevity and other complex roofing issues that a comprehensive whole building system like leed may overlook.

Astm e108 defines fire test methods for roof coverings. The cool roof rating council is a not for profit organization that validates the reflective and emissive properties of cool roof products. It is designed to evaluate both new and replacement roofs for commercial and institutional low slope buildings says craig silvertooth executive director of ceir. The shingles with the highest level of satisfaction appear first lower levels come later in the list.

In short roofpoint is a voluntary guideline and roof rating system developed by ceir. How are roofs rated.