Flat & Low-Slope Roofing in Wilmington, DE

For the low-slope porch, addition, and main roofs on Wilmington's older rowhomes, a single-ply membrane — TPO or EPDM rubber — is usually the best modern choice. It's fully adhered or mechanically fastened as one continuous surface with heat-welded or seam-taped joints, so there are far fewer seams to fail than the old built-up tar-and-gravel or roll roofing it typically replaces. EPDM is proven and economical; TPO adds a reflective white surface that cuts summer heat gain, which helps on a brick rowhome that bakes in the sun. Modified bitumen is another solid option where a torch or self-adhered system fits better. The right pick depends on the deck, the slope, and access. Call (302) 618-1471 for a look and a recommendation.

Ponding — water that sits for more than a couple of days after rain — usually means the roof lacks enough slope to drain or that drains and scuppers are clogged or set too high. On Wilmington's older flat roofs, decades of settling, sagging decking, and layers of old roofing can create low spots that hold water, and standing water is exactly what breaks membranes down and finds seams. The fix depends on the cause: clearing and re-setting drains, adding tapered insulation to build positive slope, or rebuilding a sagging section of deck before the new membrane goes on. Patching over a ponding area without addressing the slope just buys a little time. A pro diagnoses why it ponds first. Call (302) 618-1471.

Yes — the same low-slope systems that go on rowhome porches scale up to commercial and multi-unit buildings across Wilmington and New Castle County. Storefronts, offices, and small commercial buildings typically run TPO, EPDM, or modified bitumen, and the work covers full replacement, tear-off and recover, leak repair, and maintenance. Commercial flat roofs live and die by the details — flashing at parapet walls, curbs around HVAC units, and drain assemblies — so those get the attention. We can inspect the roof, document its condition, and lay out repair-versus-replace options with real numbers so a building owner can plan. Call (302) 618-1471 to schedule a commercial roof assessment.

A properly installed single-ply membrane roof in Delaware generally lasts about 20 to 30 years, with EPDM and TPO at the upper end and older built-up or roll roofing at the lower end. Wilmington's mix of hot, humid summers and freeze-thaw winters is hard on flat roofs — UV degrades the membrane surface, and seasonal expansion and contraction works on every seam and flashing. Lifespan comes down to installation quality, drainage, and maintenance: a roof that drains properly and gets its flashing and seams checked periodically reaches the top of that range, while one that ponds water or never gets looked at fails early. Keeping drains clear and catching small seam issues is what stretches the years. Call (302) 618-1471.