{"citations":{"source_mix":{"company_owned":209,"independent":118,"unclear":10},"sources_referenced_by_questions":0,"support_mix":{"direct":293,"partial":42},"total_sources":337,"unique_domain_count":86},"claims":[{"claim_id":"claim-001","confidence":"verified","observed_at":"2026-09-30","platform_support":["anthropic","deepseek","google","grok","kimi","openai","perplexity"],"predicate":"platforms_analyzed","qualifier":"valid included platform responses","subject":"Best Flat and Low Slope Roofing Contractors for Commercial Buildings","unit":"platforms","value":7},{"claim_id":"claim-002","confidence":"verified","observed_at":"2026-09-30","platform_support":["anthropic","deepseek","google","grok","kimi","openai","perplexity"],"predicate":"final_consensus_rank","qualifier":"Flat and low slope commercial roofing","subject":"CentiMark","unit":"rank","value":1},{"claim_id":"claim-003","confidence":"verified","observed_at":"2026-09-30","platform_support":["anthropic","deepseek","google","grok","kimi","openai","perplexity"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"CentiMark","unit":"platforms","value":7},{"claim_id":"claim-004","confidence":"verified","observed_at":"2026-09-30","platform_support":["anthropic","deepseek","google","grok","kimi","openai"],"predicate":"final_consensus_rank","qualifier":"Flat and low slope commercial roofing","subject":"Tecta America","unit":"rank","value":2},{"claim_id":"claim-005","confidence":"verified","observed_at":"2026-09-30","platform_support":["anthropic","deepseek","google","grok","kimi","openai"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Tecta America","unit":"platforms","value":6},{"claim_id":"claim-006","confidence":"verified","observed_at":"2026-09-30","platform_support":["anthropic","deepseek","google","kimi","openai"],"predicate":"final_consensus_rank","qualifier":"Flat and low slope commercial roofing","subject":"Nations Roof","unit":"rank","value":3},{"claim_id":"claim-007","confidence":"verified","observed_at":"2026-09-30","platform_support":["anthropic","deepseek","google","kimi","openai"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Nations Roof","unit":"platforms","value":5},{"claim_id":"claim-008","confidence":"verified","observed_at":"2026-09-30","platform_support":["anthropic","deepseek","google","kimi","openai"],"predicate":"final_consensus_rank","qualifier":"Flat and low slope commercial roofing","subject":"Baker Roofing Company","unit":"rank","value":4},{"claim_id":"claim-009","confidence":"verified","observed_at":"2026-09-30","platform_support":["anthropic","deepseek","google","kimi","openai"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Baker Roofing Company","unit":"platforms","value":5},{"claim_id":"claim-010","confidence":"verified","observed_at":"2026-09-30","platform_support":["openai","perplexity"],"predicate":"final_consensus_rank","qualifier":"Flat and low slope commercial roofing","subject":"North American Roofing","unit":"rank","value":5},{"claim_id":"claim-011","confidence":"verified","observed_at":"2026-09-30","platform_support":["openai","perplexity"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"North American Roofing","unit":"platforms","value":2},{"claim_id":"claim-012","confidence":"verified","observed_at":"2026-09-30","platform_support":["google","openai"],"predicate":"final_consensus_rank","qualifier":"Flat and low slope commercial roofing","subject":"Flynn Group of Companies","unit":"rank","value":6},{"claim_id":"claim-013","confidence":"verified","observed_at":"2026-09-30","platform_support":["google","openai"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Flynn Group of Companies","unit":"platforms","value":2},{"claim_id":"claim-014","confidence":"verified","observed_at":"2026-09-30","platform_support":["anthropic","perplexity"],"predicate":"final_consensus_rank","qualifier":"Flat and low slope commercial roofing","subject":"Commercial Flat Roof Company","unit":"rank","value":7},{"claim_id":"claim-015","confidence":"verified","observed_at":"2026-09-30","platform_support":["anthropic","perplexity"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Commercial Flat Roof Company","unit":"platforms","value":2},{"claim_id":"claim-016","confidence":"verified","observed_at":"2026-09-30","platform_support":["google","openai"],"predicate":"final_consensus_rank","qualifier":"Flat and low slope commercial roofing","subject":"Roofing Corp of America","unit":"rank","value":8},{"claim_id":"claim-017","confidence":"verified","observed_at":"2026-09-30","platform_support":["google","openai"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Roofing Corp of America","unit":"platforms","value":2},{"claim_id":"claim-018","confidence":"verified","observed_at":"2026-09-30","platform_support":["google","openai"],"predicate":"final_consensus_rank","qualifier":"Flat and low slope commercial roofing","subject":"Greenwood Industries","unit":"rank","value":9},{"claim_id":"claim-019","confidence":"verified","observed_at":"2026-09-30","platform_support":["google","openai"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Greenwood Industries","unit":"platforms","value":2}],"content_scope":"aggregated facts, computed metrics, and retrieval summaries","entities":[{"average_rank":1.8571428571428572,"best_rank":1,"entity_id":"entity-001","entity_type":"company","final_rank":1,"name":"CentiMark","platform_mentions":7,"platform_share":1},{"average_rank":2.3333333333333335,"best_rank":1,"entity_id":"entity-002","entity_type":"company","final_rank":2,"name":"Tecta America","platform_mentions":6,"platform_share":0.8571428571428571},{"average_rank":3.4,"best_rank":3,"entity_id":"entity-003","entity_type":"company","final_rank":3,"name":"Nations Roof","platform_mentions":5,"platform_share":0.7142857142857143},{"average_rank":4.6,"best_rank":4,"entity_id":"entity-004","entity_type":"company","final_rank":4,"name":"Baker Roofing Company","platform_mentions":5,"platform_share":0.7142857142857143},{"average_rank":1,"best_rank":1,"entity_id":"entity-005","entity_type":"company","final_rank":5,"name":"North American Roofing","platform_mentions":2,"platform_share":0.2857142857142857},{"average_rank":4,"best_rank":4,"entity_id":"entity-006","entity_type":"company","final_rank":6,"name":"Flynn Group of Companies","platform_mentions":2,"platform_share":0.2857142857142857},{"average_rank":5.5,"best_rank":5,"entity_id":"entity-007","entity_type":"company","final_rank":7,"name":"Commercial Flat Roof Company","platform_mentions":2,"platform_share":0.2857142857142857},{"average_rank":5.5,"best_rank":5,"entity_id":"entity-008","entity_type":"company","final_rank":8,"name":"Roofing Corp of America","platform_mentions":2,"platform_share":0.2857142857142857},{"average_rank":7.5,"best_rank":7,"entity_id":"entity-009","entity_type":"company","final_rank":9,"name":"Greenwood Industries","platform_mentions":2,"platform_share":0.2857142857142857}],"identity":{"dataset_url":"https://homeservicesconsensusindex.com/datasets/roofing-services/flat-low-slope-commercial-roofing.json","page_url":"https://homeservicesconsensusindex.com/roofing-services/flat-low-slope-commercial-roofing","report_type":"best_of_index","study_id":"HSCI-STUDY-E1B9B6B7C67A","title":"Best Flat and Low Slope Roofing Contractors for Commercial Buildings (2026)"},"limitations":["Exactly 7 platforms were included in this run: openai, anthropic, deepseek, grok, perplexity, kimi, google. The configured source value 7 is provenance only and must never be described as the number of platforms studied.","The finalrankingtable is the sole authority for rank, platform mentions, platform share, average rank, and best rank. Ignore any conflicting value embedded in a entity evidence bundle.","The Consensus Ranking table must contain exactly one row per finalrankingtable entity, in that order, using that exact entityname. Never split one ranked entity into two product, model, SKU, or product-line rows, and never add another ranking row for a brand already listed. Put recommended products or plans inside that entity's ranked section.","Platform mentions count only ranking-discovery mentions. Do not substitute the number of platforms that later completed a fit assessment.","Citation IDs inside each entity bundle are local to that entity. Consolidate sources by URL using the supplied source catalog.","The URLs were collected from platform responses and were not independently validated by either writer stage.","Each fitreviewurlorplaceholder is the final site-relative CMS path for that entity's review. Link the entity name to that exact path exactly once in its ranked prose section, outside tables and headings. Never replace it with a run ID, report ID, UUID, or local output path.","Use the exact entity-namespaced citation IDs from the source catalog (e.g. e1:); never transfer a citation between entities."],"methodology":{"fit_rating_contract":["strong","good","mixed","weak","uncertain"],"included_valid_platform_count":7,"maximum_finalists":10,"minimum_mentions":2,"name":"Home Services Consensus Index cross-platform AI consensus analysis","platforms_included":["anthropic","deepseek","google","grok","kimi","openai","perplexity"],"platforms_queried":["openai","anthropic","deepseek","grok","perplexity","kimi","google"],"stages":["ranking_discovery","fit_assessment","normalization","editorial_synthesis"],"version":"alias-table-1"},"provenance":{"generated_at":"2026-09-30 20:28:34.041995+00","research_date":"2026-09-30","source_snapshot_sha256":"4f50f8cc576c7aa8ddb69a7a56bc31fe97b2299d3c402c1c3b225ccf9d54f728","verification_scope":"public_verification"},"ranking":{"candidates_evaluated":31,"qualified_finalists":9,"ranking_unit":"Roofing contractor or company brand"},"schema_version":4,"summary":"CentiMark is the consensus leader for flat and low-slope commercial roofing in this 7-platform AI study, named by all seven platforms (100.0% share) at an average listed position of 1.86 and a best position of 1. Tecta America is the strongest alternative for buyers who want local execution backed by a national network, and Nations Roof is the leading choice for multi-site portfolios that need centralized national-account coordination. Baker Roofing Company is the strongest regional option for the Southeast and Mid-Atlantic, while North American Roofing, Flynn Group of Companies, Commercial…","target_buyer":"A commercial property owner or manager who needs a flat or low-slope roof system installed or replaced on a business building.","topic":{"base_category":"Roofing Services","category_criteria":["commercial roofing systems expertise (TPO","EPDM","modified bitumen)","project management for large buildings","code compliance","warranty coverage","minimal business disruption"],"geography":"United States","slug":"best-flat-and-low-slope-roofing-contractors-for-commercial-buildings","title":"Best Flat and Low Slope Roofing Contractors for Commercial Buildings","use_case":"Flat and low slope commercial roofing"}}