A roof system is a working assembly, not a product name. Deck, insulation, attachment, seams, flashing, drainage, rooftop equipment and access all affect the choice. In Kent, a manufacturing facility in the Kent Valley may have different operating constraints from a mixed-use building near Kent Station. We start with the current roof record and the decision date, then compare systems that fit the verified conditions.

Roof Systems

TPO Roofing in Kent, WA
TPO Roofing

Compare TPO repair, recover, and replacement options in Kent, WA. We inspect seams, attachment, insulation, drainage, and access before setting scope.

PVC Roofing in Kent, WA
PVC Roofing

Plan PVC roof repair or replacement in Kent, WA. We inspect seams, flashings, drainage, insulation, and chemical exposure before comparing scope.

EPDM Roofing in Kent, WA
EPDM Roofing

Assess EPDM roof seams, flashings, and wet insulation in Kent, WA. We compare targeted repair, recover, and replacement against verified conditions.

KEE Roofing in Kent, WA
KEE Roofing

Evaluate KEE membrane repair and replacement in Kent, WA. We review the roof assembly, exposure, attachment, flashings, and project requirements.

Modified Bitumen Roofing in Kent, WA
Modified Bitumen Roofing

Review SBS and APP modified-bitumen repairs or replacement in Kent, WA. We inspect plies, surfacing, flashing, drainage, and the roof below.

Built-Up Roofing in Kent, WA
Built-Up Roofing

Inspect built-up roof surfacing, plies, and drainage in Kent, WA. We define repair, recover, or replacement scope from tested conditions.

Standing Seam Metal Roofing in Kent, WA
Standing Seam Metal Roofing

Inspect standing seam metal roofs in Kent, WA. We assess panels, clips, flashings, coatings, and movement before defining repair or replacement.

Metal Roof Retrofit in Kent, WA
Metal Roof Retrofit

Compare exposed-fastener metal roof repair and retrofit in Kent, WA. We inspect panel attachment, corrosion, drainage, and support before pricing.

Spray Polyurethane Foam Roofing in Kent, WA
Spray Polyurethane Foam Roofing

Evaluate spray polyurethane foam roofs in Kent, WA. We inspect adhesion, foam condition, protective coating, drainage, and repair limits.

Silicone Roof Coatings in Kent, WA
Silicone Roof Coatings

Assess silicone roof coating in Kent, WA. We verify adhesion, surface preparation, ponding, drainage, and repair needs before setting scope.

Acrylic Roof Coatings in Kent, WA
Acrylic Roof Coatings

Plan acrylic roof coating in Kent, WA. We check substrate, drainage, preparation, and cure conditions before comparing restoration with replacement.

Which membrane fits the existing assembly?

Single-ply systems can be heat-welded, adhered or mechanically attached depending on the specification and roof. TPO roofing and PVC roofing use welded seams; EPDM relies on its specified seam and flashing details. The choice depends on substrate, penetrations, drainage, compatibility and the construction documents, not color alone.

For a recover or replacement, we inspect the existing layers and document moisture and attachment questions. KEE membranes and modified bitumen may be candidates where the assembly and project requirements support them. An approved system still needs correct edge and penetration details.

When do built-up or metal systems make sense?

Built-up roofing and modified bitumen have different layer and surfacing details that influence repair access and future maintenance. For a metal roof, inspect panel seams, fasteners, coatings, transitions and penetrations before comparing standing-seam roofing with a metal retrofit.

A proposal should show where the current assembly ends, which substrate is suitable, how the perimeter will terminate and what happens around equipment. Kent Valley logistics and aerospace operations make staging and access important, but those constraints must be confirmed at the individual facility.

Can a coating or foam restore the roof?

Silicone coatings and acrylic coatings require a compatible, prepared surface and repaired details. A coating cannot correct wet insulation or failed attachment underneath. Spray foam also requires sound preparation and careful protection during installation.

We document the surface condition, repairs, test areas and exclusions before recommending restoration. Nearby Sea-Tac climate normals show a wetter cool season, a regional reference that can inform exposure planning. Current weather and substrate conditions still govern the work window.

What should the comparison include?

Compare assembly, insulation, attachment, edge details, drainage, warranty terms in the project documents, maintenance demands, access, removal and closeout. Washington's 2021 commercial building and energy codes took effect statewide in March 2024; the applicable design requirements depend on scope and official review. A replacement estimate should state the assumptions rather than promise a system before inspection.

Send roof plans, repair records, leak zones and equipment plans. We can inspect and compare a defined recover option with replacement, or document current conditions through an inspection. The recommendation should say what is known and which test could change it.

Commercial Roofing Questions

Can a new membrane go over the existing roof?

Only after checking layers, attachment, moisture, drainage, deck and transitions. We document whether the existing assembly can serve as a base and identify testing needed before pricing a recover.

Do all single-ply membranes use the same seams?

No. TPO and PVC seams are commonly heat welded, while EPDM uses different seam and flashing methods. The specified product, substrate and details determine installation.

What makes a coating project unsuitable?

Wet or unstable material, poor adhesion, unresolved leaks, or details that cannot be prepared can make restoration a poor fit. Testing and repair limits belong in the scope.

Does system selection change the schedule?

Yes. Surface preparation, attachment method, weather window, equipment access, tear-off, and building operations affect duration. We set the sequence against confirmed site conditions.

Compare systems against the roof that is there

Send the roof plan, repair history, access window, and decision date. We will inspect the assembly and identify systems that fit its verified condition.

Request a Roof Assessment