Official filing · original source linked

CertainTeed WARN notice — Wilmington, 2020-03-25

Name: CertainTeed LLC dba CertainTeed Roofing WARN notice
Creator: California Employment Development Department

CertainTeed LLC dba CertainTeed Roofing reported 55 workers affected in Wilmington. Notice date: Mar 25, 2020; planned effective date: Mar 16, 2020.

Raw employer name: CertainTeed LLC dba CertainTeed Roofing
Canonical company: CertainTeed →
Workers affected: 55
Event type: temporary
Filing status: filed
Notice / received date: Mar 25, 2020
Effective date: Mar 16, 2020
City: Wilmington →
County: Los Angeles →
State: California →
ZIP: Unavailable
Reported location: Wilmington
Published address: Unavailable
Source classification: Layoff Temporary
Source agency: California Employment Development Department

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Original source & provenance

Open supplied source ↗

Agency source
California Employment Development Department

Source ID / record ID
ca-edd / certainteed|wilmington-los-angeles-county|2020-03-25|2020-04-11|2020-03-16|55

First ingested
Oct 7, 2026 · 21:47 UTC

Last observed
Oct 7, 2026 · 21:57 UTC

Snapshot SHA-256
dab1ed462e87f844a24caebee8ace51dece12db6aca7127b30b64beb690d0957

View original source row

{
  "cells": {
    "notice_date": "03/25/2020",
    "received_date": "04/11/2020",
    "effective_date": "03/16/2020",
    "company": "CertainTeed LLC dba CertainTeed Roofing",
    "reported_location": "Los Angeles County",
    "workers": "55",
    "type": "Layoff Temporary",
    "address": ""
  },
  "noticeDateField": "Notice Date",
  "archive": "https://edd.ca.gov/siteassets/files/jobs_and_training/warn/warn-report-for-7-1-2019-to-6-30-2020.pdf",
  "page": 166
}

A source-linked public record. Secondary records are attributed to their provider and are not independently verified. For direct records, “Verified” means sourced from an official agency; it does not confirm the layoffs took place.

Related company filings

Company / location	Workers	Effective date	Notice date	Type / source
CertainTeedTerre Haute, IN	53	Apr 30, 2012	Feb 24, 2012	layoffSource ↗
CERTAINTEEDBirmingham, AL	50	Jan 23, 2009	Nov 5, 2008	closureSource ↗
CertainTeedHardin · KY recordSecondary · WARN Feed	56	Unavailable	Jan 4, 2000	UnavailableSource ↗

Dates and counts are the supplied source’s reported values. Secondary-provider locations are unstructured; they are not confirmed worksite addresses. Check the original document for phased dates, updates and exceptions.