(g) "Qualifying party" means the individual filing as a sole proprietor, partner of a partnership, officer of a corporation, trustee of a business trust, or party of another legal entity, who is legally qualified to act for the business organization in all matters connected with its roofing contracting business, has the authority to supervise roofing installation operations, and is actively engaged in day to day activities of the business organization. "Qualifying party" does not apply to a seller of roofing materials or services when the construction, reconstruction, alteration, maintenance, or repair of roofing or waterproofing is to be performed by a person other than the seller or the seller's employees.