You will find that a lot of companies carry R Panel sheeting. The problem with R Panel as you can see in the diagram below, is that when you run a screw into the two sheets where they overlap, the screw will hit an unsupported lip and push it down rather than puncturing it and drawing it up tight. With R Panel you are much more likely to have leaks. Our buildings come standard with PBR Paneling for roof and walls. This allows for a much tighter seal virtually eliminating leaks.
Gauge refers to the thickness of the metal; the lower the number, the thicker the metal. We use either a 24 or 26 gauge steel for our sheeting, depending on location or roofing selection. Many companies use a 26 gauge steel sheeting, which is the industry standard, and they may tell you they carry the heaviest gauge sheeting. However, gauge of the material is not what’s important. The tensile strength of the material is what you want to pay close attention to. Tensile strength is the hardness and density of the metal. Our sheeting has a tensile strength of 80-90 thousand pounds per square inch. You will find that many companies use a 40-50 thousand pound tensile strength in order to lower the cost of manufacturing the building. The lower the tensile strength of the sheeting, the softer and more susceptible to damage it becomes.