--- title: California Preliminary Notice (20-Day Notice) for Roofing Contractors | LienFlash slug: california-preliminary-notice-roofing description: California roofing subcontractors: notice deadline, worked example, failure patterns, and trade-specific FAQs. published: 2026-06-27T16:15:00.737Z updated: 2026-06-27T16:15:00.737Z canonical: https://lienflash.app/blog/california-preliminary-notice-roofing author: Grant Larsen publisher: LienFlash --- # California Preliminary Notice (20-Day Notice) for Roofing Contractors In California, the roofing industry is as dynamic as its varied landscapes, with projects ranging from tear-off reroofs in wildfire-prone areas to installing EPDM membranes on sprawling commercial sites. The state's seismic retrofit projects often require specialized underlayment and flashing techniques to ensure durability. With the surge in wildfire rebuilds, roofing contractors are frequently tasked with installing fire-resistant shingles and cap sheets. Navigating the complexities of supply chains across the vast LA and Bay Area can be challenging, especially when it comes to securing bundles of materials for large-scale projects. > **A late Preliminary Notice restricts your lien rights — it doesn't eliminate them, but it limits your claim.** Under California law, a late notice restricts coverage to work performed in the 20 days before the notice was served, plus future work. File on day one to protect everything. --- ## The Deadline | | | |---|---| | **Notice type** | Preliminary Notice (20-Day Notice) | | **Governing statute** | [Cal. Civ. Code §§ 8102, 8200–8216](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=8200.&lawCode=CIV) | | **Deadline** | **20 days from first furnishing of labor, services, or materials** | *The deadline is strictly enforced.* --- ## When Does the Clock Start for Roofing Contractors? For roofing jobs, the clock typically starts ticking the first day your crew accesses the roof or when materials like shingles or membranes are delivered to the site. In California, this can be complicated by factors like CEQA-delayed commercial starts. An edge case might involve a project where the initial tear-off is delayed due to unexpected seismic retrofit requirements. *The exact legal definition of "first furnishing" is set by [Cal. Civ. Code §§ 8102, 8200–8216](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=8200.&lawCode=CIV). This operational description does not substitute for the statutory definition.* --- ## Worked Example: Los Angeles — TPO membrane installation on a commercial building In Los Angeles, a roofing subcontractor was engaged by a general contractor to install a TPO membrane on a commercial building. On the first day, the crew arrived on site and began the tear-off process, removing the existing roofing materials. They then proceeded to lay down the new underlayment and prepare for the TPO membrane installation. The subcontractor, overwhelmed by the project's scale and the complexity of navigating the supply chain, neglected to send the preliminary notice. This oversight occurred despite the significant investment in materials and labor. | Event | Date | |---|---| | First furnishing | March 3, 2025 | | Notice must be served by | **March 23, 2025** | | Deadline | **20 calendar days** ([Cal. Civ. Code §§ 8102, 8200–8216](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=8200.&lawCode=CIV)) | If the notice is not served by **March 23, 2025**, lien rights are at risk regardless of work completed or amounts unpaid. --- ## Three Ways California Roofing Contractors Lose Their Lien Rights **1. Overlooking Tear-Off Start** In California, the tear-off process often marks the beginning of furnishing for roofing projects. Missing this crucial start can lead to a failure in securing payment rights, especially in large-scale reroof projects. **2. Delayed Notice Due to Supply Chain Issues** Supply chain delays in sprawling areas like the Bay Area can cause roofing contractors to miss the window for sending preliminary notices. This is particularly problematic when waiting for specific materials like modified bitumen or cap sheets. **3. Seismic Retrofit Confusion** Seismic retrofit projects in California often require additional steps like specialized underlayment installation. Misunderstanding when furnishing begins can lead to missed notices and payment issues, especially if the initial work involves unexpected retrofitting tasks. --- ## Who Must File? All claimants except direct contractors. This includes subcontractors, material suppliers, equipment lessors, and laborers (if employed by anyone other than the direct contractor). --- ## Who Is Exempt? Direct contractors and laborers employed directly by the owner. --- ## How to Serve the Notice The Preliminary Notice must be served by certified or registered mail, or by any other means of delivery that provides written verification of delivery, to the owner, direct contractor, and construction lender (if any). --- ## Statutory Notice Text The following notice text must appear verbatim. > NOTICE TO PROPERTY OWNER If bills are not paid in full for the labor, services, equipment, or materials furnished or to be furnished, a mechanic's lien leading to the loss, through court foreclosure proceedings, of all or part of your property being so improved may be placed against the property even though you have paid your contractor in full. You may wish to protect yourself against this consequence by (1) requiring your contractor to furnish a signed release by the person or firm giving you this notice before making each payment to your contractor, or (2) any other method or device that is appropriate under the circumstances. --- ## What Happens When a California Roofing Sub Doesn't File In San Diego, a roofing subcontractor was hired to install a TPO membrane on a new commercial building. On the first day, the crew began by tearing off the old roofing system and laying down the new underlayment. Due to the hectic schedule and the sprawling nature of the job site, the preliminary notice was overlooked. As weeks passed, the subcontractor realized they had not secured their payment rights. Without the notice, they faced difficulties in recovering costs for the bundles of materials and labor invested in the project. --- ## Roofing-Specific Questions **How does the wildfire-rebuild surge affect preliminary notices for roofing?** The surge in wildfire rebuilds in California means roofing contractors are often working on multiple projects simultaneously, increasing the risk of overlooking preliminary notices. It's crucial to track each project's start, especially when dealing with fire-resistant materials like shingles and cap sheets. **What challenges do seismic retrofit projects pose for roofing notices?** Seismic retrofit projects often require additional steps like installing specialized underlayment and flashing. These added complexities can make it difficult to determine when furnishing begins, leading to potential oversights in sending preliminary notices. **How do sprawling job sites impact roofing notice timelines?** In sprawling areas like Los Angeles or the Bay Area, roofing projects often involve long supply chains and multiple delivery points. This can complicate the tracking of when materials like bundles of shingles or TPO membranes arrive, affecting the timing of preliminary notices. --- ## California Preliminary Notice (20-Day Notice): Standard FAQs As a roofing contractor, understanding the nuances of preliminary notices in California is crucial. **What happens if I send my California Preliminary Notice late?** Unlike some states, sending it late does not completely destroy your lien rights. However, it restricts your lien claim to only the labor or materials provided within the 20 days immediately preceding the date the late notice was served, plus any future work. *This is general information based on California statutes, not legal advice.* **Do direct contractors (General Contractors) need to file this?** Direct contractors do not need to serve a Preliminary Notice on the owner or subcontractors, but they MUST serve it on the construction lender if there is one. *This is general information based on California statutes, not legal advice.* --- ## See the Full State Deadline Guide For a complete breakdown of all filing requirements, project-type rules, and deadlines, see the [California Preliminary Notice guide](/deadlines/california). --- ## File the Moment You Mobilize LienFlash automates California Preliminary Notice (20-Day Notice) filing for roofing subcontractors. [Start your first notice →](/signup) --- *This page provides general information about California's construction lien law and is not legal advice. Consult a licensed California construction attorney for guidance on your specific situation.* --- Source: https://lienflash.app/blog/california-preliminary-notice-roofing Author: Grant Larsen, President, LienFlash Publisher: LienFlash (https://lienflash.app)