EPDM Roofing in Lewisville, TX

Attachment detail: ballast, adhesive and fasteners

EPDM is installed one of three ways: ballasted with stone or pavers, fully adhered to the substrate or mechanically attached with fasteners and plates. Each fails differently. A ballasted roof can hide a problem under the stone, and ballast can shift and wear the sheet. A fully adhered roof can lose bond and form a blister or a wrinkle. A mechanically attached roof can lift a fastener plate through the sheet.

We check the ballast for even coverage and for places where the stone has moved. We tap and press on a fully adhered area for hollow spots and for lifting at the edges. We look at fastener lines for bumps. Where a ballasted roof has to be repaired, the ballast is moved, the repair is made on the clean membrane and the ballast is replaced in the same pattern, which is recorded in the photos. Weight matters, since extra layers and stone add load, and the deck is part of the decision.

Evidence sequence: shrinkage, heat and hail

EPDM shrinks over time, and the movement pulls the sheet away from walls and curbs and stresses the flashing and the splices. The record documents the gap at each wall, the height of the flashing and any place where the membrane is under tension. A dark sheet takes the full summer: airport normals put July and August highs near 96 degrees and count about twenty days a year at 100 or more, which is a lot of daily heat cycling.

Hail is a regional condition, present most years across the Metroplex and absent from many individual roofs. EPDM tends to take impact by deforming, and the damage is often a bruise or a small puncture that shows up later as a leak. After a storm, the inspection pass looks for those marks and for tears at the edges and seams. A hail damage repair record separates new marks from old wear, and it supports a claim if one is made.

Repair boundary: patching rubber and retaping a seam

EPDM repairs depend on cleanliness. Old rubber accumulates dirt, and a patch applied over dirt will peel. The repair sequence is to clean the area, apply primer where the system requires it, set a cured or uncured patch with generous overlap and roll it down firmly. A lifted splice is cleaned, primed and retaped. A shrunken flashing is replaced, not stretched back into place.

Each repair is photographed beside a ruler, so a later reviewer can read its size and position without asking anyone. The boundary is set by the surrounding sheet. If the membrane is flexible and the insulation below is dry, repairs hold. If the rubber is hard, cracked or heavily weathered, patches lift at the edge, and the record marks the repair as short-term. Repeated leaks in one zone, wet insulation or a soft deck move the boundary outward. A moisture survey shows how far the wet material extends before the owner commits to a repair or a replacement.

Options review: restore, recover or replace an EPDM roof

An EPDM roof with dry insulation and sound splices can be repaired and, in some cases, coated. Silicone and acrylic products can be used over EPDM when the surface is cleaned and primed correctly; silicone roof coatings are one such route. A recover adds a new membrane over the old one when moisture and layer count allow. A full replacement is the option when insulation is wet, the sheet is failing across the field or the deck is damaged.

Lewisville's planning documents identify industrial park and commercial areas where low-slope buildings are common, and the question for an aging rubber roof is how long a repair program makes sense. The findings answer it: the moisture reading, the flexibility of the rubber and the count of repairs in the last few years. If the roof needs a new sheet and the owner wants a light-colored surface with welded seams, TPO is the usual comparison, and the cost difference, seam method and reflectivity are priced side by side with the EPDM option. Owners with several buildings can sequence the work through roof capital planning.

Closeout documentation: the splice and flashing log

The closeout packet lists the membrane, the attachment method, the splice type, the primer and adhesive products used, the cleaning steps and the weather on the repair days. It includes photographs by zone, taken before and after each repair, with each splice and flashing numbered on the roof plan.

The 2021 International Building Code appears on the city's adopted list, and the edition and amendments in force at filing govern any permit. We record permit and inspection dates in the same file. Owners with buildings in Old Town Lewisville or in Flower Mound can use the log as a baseline for later comparison.

Commercial Roofing Questions

How can I tell if my EPDM roof has shrunk?

Look at the flashing at walls and curbs. A sheet pulled tight, bridged across a corner or lifted from the wall base has moved, and the inspection measures how much.

Can a ballasted EPDM roof be repaired?

Yes. The stone is moved, the repair is made on the clean membrane and the ballast is replaced in the same pattern.

Why does a patch peel?

Dirt or old residue on the rubber. A clean, primed surface and firm rolling are what make a patch hold.

Does hail leave marks on EPDM?

Often as bruises or small punctures. The sheet may look fine until water finds the damaged spot, so we check after a storm.

What does the permit office look at on an EPDM replacement?

It applies whatever edition and local amendments are in force at filing; the adopted list includes the 2021 International Building Code. Local amendments can change what a rubber replacement needs.