Maintenance Technician GAF Buildings Materials Corp. of AmericaMaintenance TechnicianDallas, TX3. Other exciting programs and perks are available to help employees achieve work-life balance, including (but not limited to) a wellness program, free financial coaching, a referral program, and product rebates when purchased for an employee's primary residence. Under this roof, we define the future while leading the present through our deep well of experience and our responsibility to the future to drive improvements and innovation in our products.