Protect the building below the roof. Discuss leaks, drainage and repair or replacement choices with the roof system and business operations in view.
Water over a sales floor, office or tenant space needs a plan for the roof and the occupied rooms below it. The leak’s location, recent changes and existing system help orient the assessment; the repair itself needs to reach the actual roof failure.
We help Farmington building owners and property managers discuss commercial roof repair and replacement. A free roof inspection or roof walk can establish accessible condition and practical next steps. Low-slope membranes, metal sections and mixed roof assemblies need their own details checked.
Tell us about the building use, where water appears and any access restrictions. Rooftop equipment, tenants and loading areas can change how the work is staged, so those concerns belong in the first discussion.
The membrane is the outer water barrier, but a leak can start at a seam, perimeter, drain or equipment curb. Water can travel through the assembly before it appears indoors. A surface patch above the ceiling mark can miss the entry point.
Insulation and the deck matter to the repair boundary. Wet insulation or damaged supporting material can need removal beyond the visible defect. The assessment should explain what was observed, where concealed condition remains unresolved and what investigation the scope requires.
A useful repair connects to sound, compatible material. The existing membrane type, age, attachment and previous patches affect whether a local repair can be joined correctly. System identification and condition come before selecting the repair product.
Check laps, curbs and openings where the water barrier changes direction.
Consider wet insulation, fastening and support where they affect the scope.
Connect the edge and drainage details to the water path.
The existing system identifies the details to assess. Its material and condition determine which repair can connect properly.
| Existing system | Questions for the roof assessment |
|---|---|
| TPO or PVC single-ply | Are seams, welds, attachments and penetration details sound, and can the repair join compatible membrane? |
| EPDM single-ply | What is the condition of seams, flashings and adhesives, and what compatible repair detail fits the assembly? |
| Modified-bitumen or built-up | Are laps, flashings and underlying layers sound, and does deterioration extend beyond the exposed defect? |
| Metal roofing | Are fasteners, seams, movement joints and transitions shedding water as the system requires? |
| Existing coated roof | Is the underlying roof sound and dry enough for restoration, and is a proposed coating compatible with the substrate? |
System background: Carlisle building-owner resources. Checked October 2, 2026.
A coating, a patch and a new assembly solve different conditions.
A defined failure can be repaired where surrounding material and support remain sound. A restoration system can be considered when the existing roof is suitable, the proposed products are compatible and moisture or adhesion concerns have been resolved.
A coating cannot repair wet insulation or a weak deck by covering it. Preparation, drainage and the underlying assembly determine whether restoration is a workable scope.
Replacement deserves comparison when deterioration is widespread, moisture affects underlying layers or local repairs cannot connect to sound material. The proposal needs to establish removal, insulation and support work alongside the new water barrier.
A new roof also gives an opportunity to resolve drainage and equipment details. The scope should connect those changes to the observed condition and the building’s requirements.
Low-slope roofing still needs a water path. Drains, scuppers and gutters must receive runoff from the roof area they serve. Debris, poor transitions or low spots can keep water against seams and details longer than intended.
Equipment curbs and pipe penetrations interrupt that path and the membrane around them. A leak near a unit may involve the curb flashing, a nearby seam or the equipment itself; roofing and equipment responsibilities need to be settled from the actual finding.
Discuss any proposed equipment change with the roof work. Moving or adding a unit can affect the supporting structure, access and warranty terms, as well as the new opening and its flashing.
Roof work needs a plan for people using the building.
Share leak locations, interior concerns and roof entry arrangements. Include tenants, loading doors or spaces that need protection.
Discuss system condition, investigation, material movement and any equipment coordination. Decide how the roof will remain protected as work progresses.
Settle the proposed work sequence and occupied areas with the contractor. Weather and concealed condition can change that sequence.
The agreement needs the roof work, equipment interfaces, concealed-work approval and applicable written terms assigned to the responsible parties.
Yes, when the failure is defined and a compatible repair can join sound surrounding material. Wet insulation, damaged support or widespread deterioration can expand the scope or favor replacement.
Sometimes. The existing system must be suitable and the proposed restoration compatible. Moisture, weak support, drainage and adhesion concerns need assessment before restoration is selected.
Include the known system in the request, or describe the roof if it is unknown. Identification, condition and the contractor’s matching system capability need to be established before a specific repair or installation is agreed.
That depends on the scope, access, interior protection and building use. Discuss occupied areas and operational constraints early so the work arrangement can be assessed.
The roof curb, nearby seams and the equipment need their responsibilities distinguished. The indoor location alone does not establish which part failed.
Tell us about the building, leak concern and access needs. A free roof walk helps start a property-specific commercial roof plan.