Gross Roofing & Sheet Metal LLC Gross Roofing & Sheet Metal LLC has been a recognized name in the local Richmond, Indiana roofing industry for over 16 years. Gross Roofing & Sheet Metal LLC is a Richmond roofing contractor specializing in commercial, industrial and institutional roofing company. Gross Roofing & Sheet Metal LLC services include: roof inspections, construction, consulting, custom design, estimation, repairs, installation, maintenance, preventative maintenance, waterproofing, energy savings and environmental solutions. Products we install include: Single Ply, Modified Bitumen, BUR and Sheet Metal.