Tear off the existing assembly
Removal exposes the underlying layers and deck so damaged material can be addressed. It also adds removal, disposal and temporary-weather-protection work.

A clear scope starts with the roof in front of us.
Plan the membrane, insulation, attachment and drainage as one commercial reroof scope, with a work sequence that fits the occupied building.
Commercial roof replacement begins with what is already on the building. The membrane, insulation, deck, attachment, existing layers and water drainage affect which assembly can replace it. Widespread leaks or deterioration need more than a new surface color.
Moisture investigation helps establish whether insulation can stay or needs removal. Deck condition affects attachment and the work beneath the new membrane. Drain locations and roof elevations can also change the design where water does not leave the roof as intended.

A recover and a tear-off are different construction choices. Neither is a universal answer.
Removal exposes the underlying layers and deck so damaged material can be addressed. It also adds removal, disposal and temporary-weather-protection work.
Keeping eligible material can reduce removal, but the existing assembly must be suitable, dry where required and capable of supporting the new system. Code and product requirements apply.
A new membrane cannot make saturated insulation dry or restore a damaged deck. Those conditions change the scope before the covering is selected.
Coordinate the roof design with the people and operations below it.
Discuss entrances, deliveries, tenant areas, equipment service, air intakes and sensitive inventory. Identify the routes for people and materials.
Choose insulation, attachment, membrane and detail work for the building. Plan roof areas and temporary closures around weather and construction needs.
Retain the selected assembly information, repair details and applicable warranty documents for future maintenance and equipment changes.
The existing insulation’s condition, moisture, required performance and the selected assembly determine what can remain. Surface appearance does not settle that question.
Drainage is a design consideration in reroofing. The needed work depends on roof elevations, outlets, structure and the selected assembly.
No. Its architectural-asphalt residential benchmark does not price a commercial membrane assembly, wet-layer removal or equipment coordination.
Tell us the building use and the roof concerns prompting replacement. Start with a free commercial roof walk.
