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How Does Asphalt Roofing Metrical Cost Affect the Cost of Shingles?

Aug 6

How does Asphalt Roofing Metrical cost affect the price of Shingles

There are a variety of aspects to asphalt roofing. In this post, we will look at some of the main factors that go into determining how well a shingle will stick to the roof. We will also go over important terms such as melting viscosity and penetrating value. Learn how these parameters affect the price of shingles.

Penetration values

The values of penetration are a measure of the asphalt roofing's durability. These numbers show the resistance of asphalt to abrasion, and other forces. In general, these numbers are based on the hardness of asphalt. It varies between 40 and 80 percent. Increasing the hardness of asphalt increases the penetration while reducing it will reduce the point of softening. To determine the value of penetration it is necessary to look at the softening point and the penetration ratio for every type of asphalt.

There are two main ways to determine the asphalt's penetration value. The first method uses the brass cup which is filled with asphalt and heats it at a steady rate. The second one uses a small flame to flash the sample. The temperature that is recorded in this instantaneous flash represents the flash point. In the end, you can find out the maximum penetration rate of an asphalt roofing applying this method. This method is also very loved by engineers and architects as it helps them choose which materials are the ideal for a particular structure.


It is essential to know the melting viscosities of asphalt shingles prior to you decide. The capacity of the material to stretch and harden is known as the melt-viscosity. An acceptable range is between 130 and 420 cps, at 400 deg F/204 deg C. However the melt viscosity that is the first could be any of the ranges from 425-500cps 400deg F.

NIST (National Institute of Standards and Technology), has done studies on asphalt viscosity. This is the property that determines the degree to which asphalt flows and adheres to reinforcing feels. According to the NIST's suggestions roofers must apply between 1 kilogram per square meter and 2 kilograms of asphalt per 100 square feet. A proper application technique will ensure that the asphalt interply recommended is applied to the roofing substrate. The optimal viscosity of asphalt for roofing is 0.125 Pa.s and 75cP (0.75 Pa.s) is suitable for mechanical spreader application.

To develop an accurate specification for asphalt materials, the concept of rheology could be integrated into the process. For example, ASTM D36 and D5 are both used to measure the characteristics of asphalt. They test the melt-viscosity level of asphalt at 25 deg C and 400degree F. The Brookfield viscometers, Models LV and RV, can determine the viscosity of asphalt material. To make the right choice in grade, it is essential to understand the complete flow curve. For the purpose of defining processing conditions Rheological data can also be beneficial.

Granules' weight

Asphalt shingles are made mainly from asphalt, with additional granules to shield against UV Rays. The granules are created from natural stone. They're then crushed and screened in order to achieve different gradations. In the process of manufacturing, they are selected with certain proportions of the mix. The quantity and size of the aggregates determines the way asphalt shingles are classified.

As the weight of asphalt roofing granules rises, the roofing's thickness will rise. Materials that have overlap be heavier per square foot. Granules can weigh up to 30-40 percent less than a brand new shingle. However, a shingle that has an older age weighs less than half the weight of a new one.

Cost of shingles

You may be interested in the cost of asphalt shingles that can be used to replace your roof. The answer will depend on the area you live in, the complexity of your project and whether you'll require assistance from a professional. Asphalt shingles are the most affordable kind of shingles and they also come in the lowest cost per square foot. Check out the prices of different kinds of asphalt shingles and find out the cost estimate.

Asphalt shingles are measured in kilograms. One pound equals one kilogram. They are offered in multiples of ten kilograms, and there are a variety of shades of asphalt shingle. The distinction between metric and imperial units is small, which makes them an excellent option for shipping internationally. If you're planning to ship them to Europe in metric units you should be aware that they may not be readily available in all countries.


Asphalt shingles that are metric in nature are very inexpensive and a great option for international shipping. Be aware that not all countries utilize the metric system. It is possible to convert the price when shopping in Europe. We appreciate you taking the time to read. We hope that you find this article helpful.

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