Flat Roof Replacement Process
Because everyone’s home and needs are different, build the roof system that is right for you, customized with exclusive features to fit your home for enhanced performance.
Process
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The details of a flat roof are more complicated than pitched roofs. Their complexity requires training and experience. The various materials and systems are designed to last from 10 to 30 plus years. Some flat roof owners have become accustomed to replacing their flat roof every 10 years. Do your homework before you decide on a roof or a roofer. You get what you pay for. Not all flat roof material types have been shown in the “Design Your Flat Roof Section” as there are too many to display.
Steps
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1. Tear off and haul away the roof system, including plumber’s flashings and vents. Remove or hammer nails flush with sheeting/roof deck. | ![]() |
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2. Inspect entire roof area for dry rot damage in roof deck and replace with new. | ![]() |
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3. Inspect entire edge perimeter for dry rot in fascia boards and barge rafters and replace with new. | ![]() |
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4. Have HVAC contractor disconnect AC unit(s). | ![]() |
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5. Replace rotten “sleepers” and blocks with new pressure-treated lumber. Anchor AC unit(s) to sleepers, OR, construct a new platform to accommodate AC unit(s). Platform to have a new metal cap that hangs over the side of the platform to overlap the new roof. Anchor the AC unit(s) to the platform. | ![]() |
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6. Have the HVAC contractor reconnect AC unit(s). | ![]() |
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7. Add new AC disconnects where needed. | ![]() |
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8. Install fire sheet or EPS fanfold insulation over roof where needed. | ![]() |
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9. Take roof above apart and tie in with materials to match roof above, where applicable. | ![]() |
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Design FiberTite (KEE) single ply roof, including membrane, boots, flashing vents, curbs, perimeter flashings and fasteners for entire roof area. | ![]() |
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11. Fasten and install FiberTite membrane with FiberTite plates and screws. The color “standard white” is the most popular and reflective. This product qualifies for Title 24 and is Energy Star Certified. | ![]() |
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12. Fasten and install FiberTite membrane to parapet, where applicable. | ![]() |
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13. Fasten and install FiberTite perimeter flashings, including fascia cap, drip edge, fascia bar. Seal flange of fascia bar/cap with FiberTite caulking where applicable. | ![]() |
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14. Install new FiberTite boots over plumbing stacks and weld-band-seal, and caulk, where applicable. Set drains and caps. | ![]() |
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15. Install new FiberTite at existing curbs, skylights, where applicable. | ![]() |
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16. Install FiberTite safety walking pads from roof access to HVAC equipment and mechanicals for foot traffic personnel, where applicable for rooftop access. | ![]() |
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17. Install FiberTite roof vents, one per 1,000 square feet, for vapor drive-moisture control and for increased roof-system wind uplift where applicable. | ![]() |
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18. Install roof top safety sign for FiberTite and Eastman Roofing & Waterproofing, describing care, warnings and notices for foot traffic personnel. | ![]() |
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19. Clean up all debris and haul away. Sweep lawn, driveway and yard and or parking lot area daily with magnetic sweep. | ![]() |
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20. Thirty-year (30) warranty on all material, labor and installation for commercial applications, transferable. Homeowner limited lifetime material, labor and installation warranty, transferable. |
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