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Flat & Low-Slope Roofing on Englewood Additions

Englewood's housing history shows up on its rooflines. Porches were enclosed, additions were pushed off the back of ranches, garages were connected, and much of that mid-century work was built at 2:12 pitch or flatter. Shingles do not belong below 2:12, and even between 2:12 and 4:12 they need doubled underlayment laps under the city's rules. The result: a large share of Englewood homes carry a hybrid roof, shingle field plus a low-slope section, and the joint between the two is the single most common leak we find in this city.

Low-slope roofing on an Englewood, CO home addition

Membrane Systems We Install

  • EPDM rubber. The budget-friendly standard for small residential flats: 45 or 60 mil, fully adhered, quiet detailing around penetrations.
  • TPO. Heat-welded seams and a reflective white surface that earns its keep over living space in Colorado sun.
  • Modified bitumen. Two-ply toughness for patios and additions that see foot traffic, and the most forgiving system to repair later.

On every hybrid roof we detail the transition properly: membrane carried up under the shingle field, metal counter-flashed, and ice barrier tied through so freeze-thaw water moving off the upper slope has nowhere to sit. Snow loads here run to a 30 pound design standard per the city amendments, and a ponding low-slope section is where that load actually accumulates.

Repair, Re-Cover or Replace on Low-Slope Sections

Small membrane punctures and open seams are honest repairs. A weathered but dry membrane can sometimes take a re-cover. Saturated insulation or a spongy deck means replacement, and on additions from the 1950s and 60s we check the deck carefully, because these were not always built to the standard of the main house. The inspection tells us which path fits; the written scope commits to it in line items, not vibes.