Alpha1 Construction | General Contractors & Roofing in Lodi, NJ 07644

In our area, those dark streaks or patches are very often Gloeocapsa magma, a type of algae that feeds on limestone in asphalt shingles. Unlike dirt, algae stains typically appear as dark, vertical streaks starting at the roof's peak. They retain moisture, which can accelerate granule loss and shingle decay. A simple, professional inspection from Alpha1 Construction can confirm the issue and recommend a cleaning treatment or discuss if a repair or replacement with algae-resistant shingles is the best long-term solution for your Lodi home.

We understand wanting to manage costs. For eligible roofs, a roof-over (adding a new layer of shingles) can be a viable option, but it's not always recommended. Our assessment will check your deck's integrity, local building codes, and the condition of your existing layer. Often in Lodi, where underlying moisture issues from algae or aging can exist, a full tear-off is the safer choice. It allows us to inspect and repair the decking, install modern waterproofing underlayment, and provide a robust, warrantied installation with materials like algae-resistant shingles designed for our climate.

Absolutely. As a full-service contractor offering both roofing and masonry, Alpha1 Construction is uniquely equipped for this common Lodi problem. We can perform a coordinated repair: first addressing any deteriorated flashing where the roof meets the chimney, and then repairing or repointing the chimney's brickwork and crown if needed. This integrated approach ensures a complete seal, preventing future water intrusion. It's more efficient than hiring separate companies and guarantees the work is covered under our comprehensive warranty.