Sources and corrections
The public register behind the research.
These are the approved source families currently supporting the foundation. Inclusion here does not authorize a broader claim than the source can support.
ACS table B25034 ↗
Approved for housing-age analysis; not evidence of foundation type or condition.
2024 ACS B25034 table-based file ↗
State estimates and margins of error; Guide shares are calculated and labelled separately.
RSA 155-A:1, :2, and :4 ↗
Current code definition, repair scope, and permit framework; the local process still requires confirmation.
10th edition 780 CMR resources ↗
Current edition reference; the local building official applies the process to the proposed scope.
MUBEC program, laws, and rules ↗
Current state framework; municipal enforcement and the project permit route still require confirmation.
Acceptance Criteria AC358 ↗
Framework for evaluating helical pile systems and devices; not a site-specific design or approval of every product.
Evaluation Report ESR-5005 ↗
System-specific example used to describe evaluated components and installation; not a universal push-pier specification.
ACI RAP-11 ↗
Field guidance for slabjacking and condition assessment; not a property-level repair prescription.
Ground Modification Methods Reference Manual, Volume II ↗
Supports limits involving severe damage, existing cracks, unresolved causes, and replacement analysis.
A to Z Primer for Homeowners ↗
Supports traditional stone and mixed construction observations; not a regional prevalence dataset.
Preservation Brief 2 ↗
Supports compatible-mortar review for historic masonry; not a project specification.
Preservation Brief 39 ↗
Supports a systematic building-and-site moisture investigation.
Soils and Foundations Reference Manual ↗
Supports the freezing, susceptible-soil, and water model; not a residential repair design.
Geotechnical Aspects of Pavements ↗
Supports frost-heave mechanics and soil variability; transportation guidance is not a property diagnosis.
Residential Building Systems Inspection ↗
Supports cause ambiguity and inspection context; not a property diagnosis or current code.
Earthquake Safety Checklist ↗
Supports leaving a building that appears at risk of collapse; event safety guidance does not classify ordinary cracks.
RSA 310-A professional engineering provisions ↗
Supports state licensure and document-responsibility checks; project and permit requirements remain separate.
Engineering statutes and regulations ↗
Supports current state professional-practice and license-verification references.
Title 32, Section 1251 ↗
Defines professional engineering practice; the Guide does not turn it into a universal project requirement.
Push-pier service page ↗
Contractor-owned source approved only for 603’s own published service and field-selection language; not independent performance evidence or a recommendation.
Structural and foundation repair ↗
Contractor-owned source approved only to establish that 603 publishes helical and push piers among its methods; it does not establish project suitability or performance.
Concrete leveling service page ↗
Contractor-owned source approved only for 603’s published service, slab-suitability and scope distinctions; it does not establish project performance or a universal method.
TEK 03-11, Concrete Masonry Basement Wall Construction ↗
Supports basement-wall design, lateral-pressure, drainage, and support context; not a property diagnosis or repair-system prescription.
ACI 562 repair code portal ↗
Supports assessment and design context for repair of existing concrete structures; the applicable code and project responsibility still require confirmation.
Foundation repair technical manual ↗
Manufacturer source approved only for the mechanics and components of its named anchor and brace systems; not independent performance evidence or universal suitability guidance.
Correction workflow
When a source changes or a claim is challenged, the affected page is held, the source is rechecked, and the correction date travels with the updated record. Conflicting evidence stays visible internally until it is resolved.