Commercial Shingle Roofing in Los Angeles, CA

Asphalt shingles belong on sloped roof sections, where gravity carries water down and off the building. Flat sections need a low-slope system instead, such as torch-down roofing or a TPO membrane. The shingle manufacturer's current instructions and a review of your roof show whether a product fits.

Shingles may cover the pitched roofs of apartment buildings, offices, or shops. A building can also pair a flat main roof with shingled slopes along its edges. Each part then needs the system that suits its slope, with careful flashing where the two meet.

If your building mixes roof types, start with our overview of commercial roofing in Los Angeles. For a new building, we handle commercial roof installation from the plans your general contractor sends.

A shingle roof has several layers, and the shingles are only the top one. Under them sit the roof deck, the underlayment, and flashing at the joints. The Asphalt Roofing Manufacturers Association's technical bulletin on sloped-roof underlayment explains that middle layer in more detail.

• Deck: the structural boards that hold the shingle nails in place.
• Underlayment: the water-resistant sheet that lies between the deck and the shingles.
• Flashing: the pieces that seal the joints where the roof meets walls, vents, valleys, and edges.

When water gets past the shingles, these layers decide how far it spreads. Torn underlayment, open flashing, or wet decking can turn a small patch into a larger repair. Make sure the written scope names each layer, so you know which parts we replace.

Missing or broken shingles show where to look, but they do not show how far the damage reaches. A small area over a solid deck may need only a patch. Stains in several rooms can point to a wider problem.

A shingle repair may include new underlayment under the patch and flashing work nearby. For leaks on flat sections of the same building, see commercial roof repair.

If the underlayment has failed across the roof, a full tear-off and re-roof may make more sense. Tear-off means removing the old shingles and underlayment down to the deck. Read more about commercial roof replacement for existing buildings.

A short record from inside the building helps us scope the work more accurately. Note where water shows, when it started, the weather that day, and any past roof work. Dated photos of ceiling stains show how the pattern changes over time.

Call us at (424) 842-2249 for a free estimate on shingle repair or replacement.

Tenants, customers, and employees may remain on site during roof work. Agree on these points in writing before the project starts:

• Which entrances, walkways, and parking spaces must stay open?
• Where can crews stage new shingles and equipment, and where will tear-off debris collect?
• Which work hours suit your tenants, and who tells them the schedule?
• Who is your contact person, and who is ours?

Roof work brings noise and debris, and a written plan cannot remove either one. It does help your tenants, your staff, and our team know what to expect each day.

If the job needs a permit, we can help you pull it from the city where the building sits. The city sets its own review and timing.

A clear written scope names the products and the work, so ask for these details before you sign:

• The shingle manufacturer and product line.
• The underlayment type and where it goes.
• Which flashing is new and which stays in place.
• Whether the old shingles come off down to the deck.
• Anything the scope excludes.

Rotted decking found after tear-off is a common reason for a change order. Ask how the scope prices that repair before work starts. Any other promise that matters to you, such as work hours or cleanup, belongs in writing too.

Ask for the written warranty terms as well, since our ten-year workmanship warranty covers full roof replacements only.