Main differences between commercial and residential roof maintenance and repair

Commercial roofs and residential roofs have the same job, which is to protect one’s property. However, there are key differences in their maintenance and repair. Also, they are designed and constructed differently. Certain roofs require special maintenance and repair methods, and some roofing materials require certifications for handling and installation. Importantly, commercial and residential roof maintenance and repair is much more complicated in certain aspects. We have talked with certified roofing engineers from DNB Construction LLC about this topic. Here are the main points and conclusions of our discussion.

1.Different construction

Most residential roofs are sloped to facilitate water runoff, while commercial roofs are apartments to accommodate heating, ventilation, and air conditioning (HVAC) or solar systems. Each style has its advantages and disadvantages. Commercial roofs that do not slope, for example, often have problems with waterlogging and runoff. When it refreezes, it can lift the shingles and create large gaps that allow even more water to seep in.

A good roofer knows the areas where your roof is most susceptible to damage. For example, on residential roofs, ventilation shafts, dormers, and masonry chimneys are inspected first. Commercial roofs, on the other hand, lack these structures, so roof experts look for other things, such as problems with flashings and surface erosion.

2.Different composition

While residential roofs are typically made of shingles or tiles, commercial roofs use modified single-ply rubber or plastic membranes. Different materials require special equipment and skills. So, an expert in residential roofs is not automatically qualified to install or repair commercial roofs – and vice versa. A roofer who specializes in commercial roofs may not know that the overhang of shingles must be exactly between one and one-and-a-half inches. A smaller overhang allows water to seep in, and a larger overhang risks the shingles being carried away by high winds.

3.Different maintenance and repair

Both commercial and residential roofs require regular inspection. Inspecting commercial roofs is a bit easier, as you can simply walk on a roof to see if there is debris buildup in the gutters that needs to be removed, or if the flashings are damaged and need to be replaced. Keep in mind, however, that only roofing experts should repair or replace your roof. Your untrained eye might miss a small problem that can turn into a big one.

On the other hand, residential roof inspection and repair should only be done by roofing experts. You should never climb on a home’s roof to inspect it for damage because standing on sloped surfaces can lead to accidents.

Finally, no matter what type of roof you have, only trust roofing professionals for repairs and maintenance. DNB Construction LLC has a lot of experience serving residential and commercial customers. If you have any questions about residential or commercial roofs or would like a free estimate, call us at 301 – 362 – 7663.