
Flat Roof Repair
Trace leaks through seams, edge details, curbs and drainage before choosing a repair.

Leaks, aging membranes and standing water affect the building beneath the roof. Get a system-specific look at repair, restoration and replacement, with the building in use.
Free roof inspections. Repairs, replacements and commercial roof help.
The inspection starts with the existing roof assembly and where water is getting in or failing to drain. The field membrane is only one part of it. Seams, equipment curbs, penetrations, parapet flashings, edge metal and drains interrupt the surface and need close attention.
Moisture beneath the covering changes the options. A repair or coating above wet insulation leaves that wet layer in place. Where the condition cannot be established from the surface, the project needs a suitable moisture assessment and, where warranted, targeted investigation before the system is selected.
Discuss the building roof
Each system needs compatible repair materials, appropriate attachment and a practical drainage path.

Trace leaks through seams, edge details, curbs and drainage before choosing a repair.

Heat-welded thermoplastic membrane with a system-specific attachment and flashing design.

Rubber membrane with compatible seam, flashing and repair materials.

A restoration option for a dry, sound, compatible roof after repairs and preparation.

Resolve saturated layers, drainage, insulation and building operations in the replacement scope.
The existing assembly sets the options. The choice must address the cause of the leak and the condition of the layers below.
| Option | Where it fits | Limit that changes the decision |
|---|---|---|
| Repair | Localized defects with sound surrounding membrane and dry, serviceable underlying layers. | Wider deterioration or trapped moisture can put the problem beyond a patch. |
| Coating | A compatible roof that is sound and dry after preparation and needed repairs. | Coating does not replace wet insulation, structural repair or a drainage redesign. |
| Recover | A suitable existing assembly that can accept a new system under applicable code and manufacturer requirements. | Layers, moisture, attachment, weight and fire classification need verification. |
| Replacement | Saturated or deteriorated layers, extensive failure or a roof that cannot support a suitable recover. | Tear-off, insulation, drains and occupied-building staging are all part of the scope. |

A useful work plan respects both the roof assembly and the operation under it.
Tenant entrances, deliveries, sensitive indoor areas and rooftop service routes affect staging and protection.
Identify the membrane, insulation, deck and attachment, then account for drains, scuppers and overflow provisions.
Equipment access, material storage, tear-off areas and temporary dry-in need coordination with the building.
The system details, completed repairs and future inspection needs help the owner plan later work. Actual warranty terms belong with the specific installed system.
A commercial roof needs a building-specific scope. Residential shingle rates do not price a membrane project.
Removing saturated insulation, correcting deck problems and disposing of old layers affect both cost and sequencing.
The number of curbs, penetrations, edges and drainage changes can matter as much as open roof area.
Occupied work, roof access, wind design, fastening or adhesive methods and chosen insulation levels change the assembly and labor.
No. A coating needs a sound, dry, compatible roof after repair and preparation. Wet insulation, loose attachment, deteriorated decking and unresolved drainage require other work.
The work plan can account for an occupied building, but access, odors, noise, equipment and temporary protection depend on the chosen system and scope. Tell us how the building is used so those needs are part of the assessment.
Low-slope roofs need a defined path to drains or scuppers. A blocked outlet and an area with insufficient fall are different problems. The assessment needs to identify the cause before choosing a repair or insulation change.
Tell us about the roof system if you know it, the affected space and how the building is used. Request a free roof inspection.
Liberty Roof Pros