TPO and EPDM
TPO uses heat-welded seams; EPDM uses compatible rubber-membrane seam and flashing materials. Preparation, attachment and the condition of the existing surface determine a local repair.

A leak above a stockroom or tenant space raises questions beyond the roof surface. Water can move through insulation before it appears indoors, and a repair needs to account for drains, curbs and equipment access. We start with the existing roof system, its moisture condition and the way the building operates.
Free roof inspections. Repairs, replacements and commercial roof help.
On a single-ply roof, the field membrane and its seams need different attention from flashing around a rooftop unit. A puncture in dry, well-attached material can support a localized repair; moisture beneath it changes the area that needs opening. On modified bitumen, splits and laps must be assessed within the layered assembly. Drainage defects, blocked drains and deteriorated edges also need correction so a fresh patch is not left in standing water.

TPO uses heat-welded seams; EPDM uses compatible rubber-membrane seam and flashing materials. Preparation, attachment and the condition of the existing surface determine a local repair.
Reinforced asphalt sheets form a layered assembly. Open laps, split sheets and penetrations need to be evaluated with the substrate rather than treated as isolated surface blemishes.
A coating needs a suitable dry, attached substrate. It cannot dry wet insulation or restore a failed deck. Replacement is the useful comparison when concealed layers or widespread attachments have failed.
The proposed work needs routes for people, materials and debris that respect entrances, loading and roof equipment. Drain outlets and overflow provisions need to remain functional. The extent of tear-off, insulation, deck repair, perimeter fastening and trade coordination drives commercial cost. Rooftop equipment changes can involve separate electrical or mechanical work, beyond the roof covering. Tell us the building use and the problem you noticed to begin a free roof inspection.


Welded thermoplastic membrane and curb details.

Rubber membrane, compatible seams and flashing.

Reinforced asphalt sheets and layered laps.

Restore a suitable dry, attached substrate.

Drainage, membrane and concealed layers considered as one assembly.

Keep attention on drains, service traffic, seams and the repair history.
Tell us the property location and the roof concern. We can begin with a free roof inspection.
Oak Grove Roof Pros