Although serving the same purpose, there are basic differences between commercial and residential roofing, so that the first thing that an experienced roofing contractor will ask you is whether you are contracting for a commercial or a residential roofing. Be aware that the differences between a commercial and a residential roofing project are very much different, from the design, structural elements, to the materials and costs.
The first thing to mention is the size difference in constructing a commercial roof from that of a residential roof and thus the structural needs differ. As an example, take the size of the roof of your house compared to that of the roofing of a commercial building, which the load requirements, fixtures and materials will of course differ. The fact that the materials involved in each construction differ, imagine that the commercial roofs have a larger load bearing capacity compared to that of a residential roofing. In the same manner that you would need more number of crew when installing a commercial roof because it is a bigger job compared to a residential roof.
With regards to the function of the roof, compared to residential roofs, a commercial roofing has more protrusions in comparison. A residential roof may need to accommodate protrusions like chimneys, skylights and others, a commercial roofing will have to consider others like ventilation systems, smoke stacks, pipes, roof entrances and other mechanical needs. Both commercial and residential roofing of Houston residential roofing and commercial roofing contractors could have some specialized construction specifications depending on the needs. It could be a reason of the function of the building, like if a building is for a heavy machinery establishment, then the roofing must be able to withstand the discharge of heat. In residential roofing, the construction on the other hand would depend on the personal preferences of its homeowners, from the choice of appearance, durability and maintenance.
With the size and scope of the project for either commercial or residential, you have to consider too the specialized knowledge and skills of your potential roofers. While a commercial roofer has to take into account the function of the commercial building, the residential roofer on the other hand has to take into consideration the special needs of the homeowners.
These differences of roofing projects would put also the two different roofers having different needs to complete the work. Of the two contractors, the Houston commercial roofing contractor is viewed to be more difficult and more involved in the job because of the scope of the job, and in turn affecting the fact that it is difficult to find skilled workers and the number of this skilled people, which in turn would affect the cost they will give you of the project.