Seams
Heat welds need appropriate preparation, settings and verification. Coating over a suspect seam does not establish a sound weld.

Free inspections. Clear repair and replacement options.
TPO is a single-ply membrane system for low-slope roofs. Performance depends on the assembly below it and the welded seams, attachment, edges and rooftop details around it.
TPO combines membrane, compatible insulation or cover board and a selected attachment method over a suitable deck. Mechanically attached and adhered assemblies have different specifications.
Thickness alone does not describe the system. Deck, uplift design, perimeter attachment and manufacturer details belong in the scope.

Welded and flashed details connect the membrane to the building.
Heat welds need appropriate preparation, settings and verification. Coating over a suspect seam does not establish a sound weld.
Equipment, pipes and supports need compatible flashing and detail space. Mechanical equipment work is separately coordinated.
Edges, terminations and parapets need specified attachment and flashing for wind resistance and water control.
Retained membrane and assembly set the options.
| Work | Establish |
|---|---|
| Seam or puncture | Clean, sound compatible material and repair boundary. |
| Wider repair | Moisture or insulation/deck damage in the assembly. |
| New system | Removal/recover suitability, insulation, attachment and drainage. |
Consider the building beneath the roof.
Identify access, sensitive areas, interior equipment and leaks.
Establish curbs, drains and other trades before affected work.
Clarify staging, protection and daily areas without assuming every operation will be unaffected.
Compare the whole assembly.
| Driver | Scope |
|---|---|
| Deck and layers | Removal, substrate and wet insulation. |
| Insulation/attachment | Thickness, taper, cover board and design. |
| Details | Curbs, edges, terminations, drains and access. |
Often, if retained material is suitable for compatible preparation and welding. Condition determines the boundary.
No. Several membranes and coatings are white. Identify the system first.
Terms depend on system, installer eligibility, inspections and written warranty. No particular term is promised here.
Tell us about the property and the roof concern. Request a free roof inspection in Del City.
