Residential & Commercial Roofing in Knightsen
Knightsen Roofing & Maintenance handles every roofing job from a single-shingle repair to a full commercial re-roof. Here's what we do in Knightsen.
Roof Replacement
We replace roofs. It's what we do more than anything else. Our Knightsen crews average 15-20 complete tear-off and replacements per month. That kind of volume means we've seen every situation: steep pitches, multiple layers, rotted decking, improper ventilation from the last guy. We fix all of it and install a roof system that's warranted for decades.
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Roof Repair
Missing shingles from wind damage expose the underlayment to UV degradation. If the underlayment is compromised, water intrusion follows the next rain. We don't just replace the missing shingle. We pull back surrounding courses, inspect the underlayment for UV damage and nail holes, replace compromised sections, and weave new CertainTeed Landmark or IKO Cambridge shingles into the existing field. Proper repair, not a patch.
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Storm Damage Repair
After a major storm in Knightsen, we mobilize quickly. Emergency tarping within 24 hours to prevent secondary water damage. Then a full damage inspection once conditions allow. We use drone photography on larger commercial roofs to document everything the adjuster needs.
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New Roof Installation
New construction underlayment per IRC R905 and ASTM D226 (felt) or ASTM D6757 (synthetic). Ice barrier per ASTM D1970 required at eaves in climate zones with average January temperature below 25°F. We install ice and water shield regardless. It's cheap insurance against ice dams and wind-driven rain. Drip edge per IRC R905.2.8.5 on eave and rake edges. Proper starter strip with factory sealant for wind resistance from day one.
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Metal Roofing
Metal roof repairs are usually sealant failures at transitions, loose panels from improper installation, or rust spots on older galvanized systems. Our Knightsen crew repairs all metal types. Not every issue needs a full replacement. Sometimes a sealant touch-up or panel re-securing solves it.
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Shingle Roofing
Shingle color matters more than you think. Dark shingles absorb heat. Great for cold California winters, harder on cooling bills in summer. Lighter colors reflect heat. Algae-resistant granules prevent black streaking. We bring shingle samples to your Knightsen home so you can see them against your siding and trim.
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Flat Roofing
TPO single-ply membrane in 60-mil or 80-mil thickness, fully adhered or mechanically attached over minimum R-25 polyiso insulation. Hot-air welded seams tested with a probe at every joint. We install per NRCA and manufacturer specifications with tapered ISO insulation creating minimum 1/4" per foot positive drainage. Ponding water is the number one cause of flat roof failure in Knightsen. Tapered insulation eliminates it. FM 4473 rated systems available for hail-prone areas. Fully warranted by Carlisle, Firestone, or GAF.
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Commercial Roofing
TPO is our most-installed commercial membrane in Knightsen. 60-mil thickness, hot-air welded seams, mechanically attached or fully adhered over polyiso insulation. The weld is stronger than the membrane. 15-20 year manufacturer warranties depending on system build-up.
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Gutter Installation
Clogged gutters cause fascia rot, soffit damage, and foundation erosion from concentrated water runoff. That's not a marketing scare tactic. We see the damage on every other gutter replacement in Knightsen. Properly sized gutters with adequate downspout capacity move water away from the house. We calculate capacity using rainfall intensity data for Knightsen: roof area x pitch factor x rainfall rate in inches per hour. Standard 5" K-style handles 5,520 square feet of effective roof area.
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Roof Inspection
Our inspection covers the roof and the attic. From the attic, we check for daylight through the roof deck, moisture stains on rafters, mold on sheathing, and ventilation function. Problems in the attic often indicate roof issues that aren't visible from the surface.
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Emergency Roof Repair
Our trucks carry 20x30 reinforced tarps, 2x4 lumber, plywood sheets, pipe boots, ridge cap shingles, flashing stock, roofing cement, and neoprene screws. We show up ready to secure your roof, not ready to schedule a follow-up appointment.
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Skylight Installation
VELUX FS (fixed) and VS (vented) skylights installed with EDL flashing kits for shingle roofs. The multi-step flashing integrates with the surrounding shingle courses per IRC R903.2. We frame the curb with doubled 2x8 or 2x10 lumber (depending on rafter depth), install ice and water shield membrane around the entire curb perimeter, then set the skylight with factory sealant before weaving step flashing into the field. Top headwall flashing tucks under the upslope shingle course. Bottom sill pan diverts water onto the downslope shingles. Zero exposed sealant joints. Mechanical flashing only.
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