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 You Must Ask these Questions while Hiring Roofing Companies   Business,Construction Small percentage of an industrial building’s initial construction cost is represented by a roof. But significant amount of time and expense is required for maintaining it over the course of the building’s lifetime. Making the right decision about roofing companies in okc and how best to maintain it and who to use requires some homework like, preventative maintenance, emergency repairs, and semi-annual inspections. But in your operating budget doing that homework can save considerable dollars and to other building projects it help you divert more capital. You can receive proof of compliance with important requirements when the contractor is self-performing the work, such as: •Compensation of workers •General liability insurance coverage •Protocols and Safety ratings •Policy regarding drugs •Background checks of criminals •State licensing •Documentation of workers You cannot be sure whether  the subcontr