Metal roofs are typically expected to last 50 years. With proper design and installation, a good metal roof can last beyond its expected lifespan. But what are the features of a quality metal roof?
Every roof has a slope. In fact, even so-called “flat” roofs are slightly sloped to allow them to drain rainwater. One of the best reasons for choosing metal roofing is that it works on any roofing slope. For projects that involve building or rebuilding the roofing structure, metal roofing provide flexibility on the roof design, including how steep the new roof should be. The steeper the slope, the more visible the roof is from the ground and, therefore, the stronger the curb appeal will be. The right roof slope can achieve a perfect balance between efficiency and aesthetics.
Metal roofing is available in different thicknesses or gauges. The thicker the gauge, the better it resists impact damage and may also require relatively less roof maintenance. It should be noted that the weight is directly proportional to gauge. Therefore, you have to make sure the roofing structure will be able to support the additional weight if you opt for a thicker gauge. It may also take longer to install as it takes longer to drill fasteners onto thick roofing. Experienced roofers like us can help you choose the right metal roofing gauge that will balance your budget and requirements.
As with all other sloped roofing systems, metal roofs require a waterproofing barrier between the outer layer and the substrate. The right waterproofing membrane should be able to block moisture from the outside yet allow moisture to evaporate from the roof deck. This is why materials such as tarpaulin should never be substituted for waterproofing membranes.