Selecting the appropriate insulation can be a complex process, especially with all of the specialized terminology that comes with the territory. One of the most commonly used descriptors to determine the quality of any insulation is R-value. In this week’s article we are going to discuss what exactly that number means, why it is important in commercial and industrial applications, and what you need to know in order to maximize the benefits of high R-value insulation materials.
What is R-Value
R-value measures how well an insulation material, such as foam insulation, can resist heat through conduction. The higher the R-value, the greater the performance of the insulation. This value is calculated using temperature difference, heat flux, and exposed surface area to give you a material’s absolute thermal resistance.
Which Elements Affect R-Value
It’s important to recognize that R-value is typically measured in a lab and not in a real life scenario. Because of this, you can’t rely solely on a material’s R-value without considering the elements that will potentially work against it. For example, humidity, wind, and sudden temperature shifts can alter the pressure between insulated surfaces, create air pockets, or even harbour condensation that can lead to mold and insulation breakdown. Furthermore you will need to consider the compressive strength and dimensional stability of the insulation. These terms refer to the material’s ability to withstand crushing forces, twisting, or vibration. In the case that insulation is damaged by any of these factors, the R-value will no longer be relevant.
Maximizing Insulation’s Potential
Heat doesn’t just travel through conduction, which is the type of movement that R-value refers to. It travels through convection, radiation, and air infiltration as well. By utilizing materials and installation methods that consider all of these ways by which heat transfers, you can create an informed and effective insulation design throughout your building. Furthermore, regular maintenance and inspections will ensure that all of these measures are working properly for years to come.
At Westcal Insulation, we don’t expect you to become an expert in insulation materials, that’s what we are here for. To find out if your commercial or industrial insulation is performing the way its R-value claims it should, contact us today for a consultation.
