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Condominiums · Assessment · RA 4726

Residents Are Sending Photos of Cracked Columns. Now What?

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AEDO Engineering
AEDO Construction OPC, PRC-licensed civil engineers. Legal provisions are quoted from RA 4726, the Civil Code and PD 1096, and concrete acceptance from NSCP 2015 Section 426.12. This is an engineering guide, not legal advice.

Short answer: triage first, then commission an assessment sized to what you found. Most condominium concerns start with a visual survey and crack mapping. Cores and analysis come in only where the survey says strength or load is actually in doubt. What a board can't do is sit on the photos, because the Civil Code ties liability to repairs that weren't made.

Picture how it starts. A resident posts a photo in the group chat of a crack running across a beam in the parking level. Someone else says theirs is worse. By evening the property manager is fielding questions about whether the building is safe, and nobody on the board has a structural engineer's number.

Concrete core drilling on an existing structure
Cores settle strength questions that rebound hammers can't. They come after the survey, not before it. Illustrative image.
Free Triage Check · By AEDO Construction

Condominium Structural Triage

Answer from what the property team can see and what's on file. You get a priority level and the scope layers to put in the request for quotation.

What this is and is not. A triage aid using AEDO's own weighting of common warning signs. It is not a code method and it can't clear a building. If anyone reports sudden new cracking, sagging, or sounds from the structure, don't wait for a scoring tool: restrict access to the area and call an engineer and the building official.
Writing the RFQ? Send the storey count, the drawings you have and photos of the worst areas. We'll tell you which layers the assessment needs. Scope an assessment →

What the Condominium Act Puts on the Management Body

Section 9 of RA 4726 requires the owner of a project to register a declaration of restrictions before selling any unit. That declaration has to provide for a management body, which can be a condominium corporation, an association of owners, a board of governors or a management agent.

Among other things, Section 9 says the declaration may give that body power to enforce the restrictions, and provide for maintenance of insurance, and for maintenance and other services benefiting the common areas. The Act doesn't list structural inspections by name. Your declaration, master deed and insurance policy are where the actual obligation is written, so pull those out before the first board meeting on this.

The Liability Question Boards Ask First

Civil Code Article 2190 makes the proprietor of a building responsible for damages from its total or partial collapse if it's due to the lack of necessary repairs. Article 2192 sends the injured party to the engineer, architect or contractor only where the damage comes from a construction defect under Article 1723. So the defence against the first article is a record: the concern was reported, an engineer assessed it, and the recommended repairs were programmed. Who counts as the proprietor in your building is a question for counsel reading the master deed.

What an Assessment Actually Contains

An assessment isn't one test. It's a sequence, and each step decides whether the next one is needed. Paying for cores before anyone has mapped the cracks is an easy way to waste the budget.

Figure: Each Layer Earns the Next One Survey, test, core, analyse, in that order 1 Visual survey crack mapping spalling, leaks every level 2 Non-destructive rebound survey cover and bar scan where step 1 flagged 3 Cores NSCP 426.12.4.1 avg of 3 ≥ 85% f'c none below 75% 4 Analysis alterations added loads event damage Nothing found? Stop here and schedule the next survey. Result: repair, strengthen or restrict, per area A rebound hammer cannot accept or reject concrete. ASTM C805 says so. It tells you where to core.
The survey is the cheapest step and it decides the rest. Testing and cores are targeted at what the survey flagged. Analysis comes in when something has changed what the structure carries, such as a slab cut for a staircase or tanks added to the roof.
LayerTriggered byWhat it answers
Visual survey and crack mappingEvery assessmentWhere the problems are and how widespread
Non-destructive testingCracks, spalling or suspect areas from the surveyCover, bar position, relative concrete quality
Concrete coresStrength in doubtIn-place strength against NSCP 426.12.4.1
As-built documentationNo usable structural drawingsWhat the structure actually is
Structural analysisAlterations, added load, event damageWhether members still carry what they now must

When the Building Official Gets Involved

PD 1096 Section 214 treats a building as dangerous where it's structurally unsafe, or a hazard because of inadequate maintenance, dilapidation, obsolescence or abandonment. Section 215 directs the building official to order repair, vacation or demolition depending on the degree of danger. A board that already has an engineer's report and a programme of repairs goes into that conversation very differently from one that has only resident complaints.

Where These Figures Come From

Management body provisions are RA 4726 Section 9. Liability is Civil Code Articles 2190 and 2192. Dangerous buildings are PD 1096 Sections 214 and 215. Core acceptance is NSCP 2015 Section 426.12.4.1, and the limit on rebound hammer results is stated in ASTM C805 itself. The triage weighting is AEDO's own practice, not a code method.

Frequently Asked Questions

Who is responsible for structural maintenance in a condominium?

Section 9 of the Condominium Act (RA 4726) requires the project owner to register a declaration of restrictions that provides for a management body, which may be a condominium corporation, an association of owners, a board of governors or a management agent. The declaration may give that body power to enforce the restrictions and provide for maintenance and other services benefiting the common areas. Read your own master deed and declaration to see exactly how responsibility was allocated in your building.

How often should a condominium building be structurally assessed?

We have not found a national statute that fixes a structural assessment interval for private condominiums. That makes the building's own declaration of restrictions, its insurance terms and its maintenance programme the real drivers. In practice, assess after any strong earthquake, typhoon or fire affecting the building, whenever cracking or corrosion appears in columns, beams or slabs, and before any change that adds load, such as rooftop tanks or new amenities.

Is a rebound hammer test enough to judge the concrete?

No. ASTM C805, the rebound hammer standard, states that its results cannot be used to accept or reject concrete. The rebound survey tells the engineer where to take cores. Under NSCP 2015 Section 426.12.4.1, an area is considered structurally adequate if the average of three cores is at least 85 percent of the specified strength and no single core is below 75 percent.

What happens if the building official finds the building dangerous?

PD 1096 Section 214 treats buildings as dangerous where they are structurally unsafe or a hazard because of inadequate maintenance, dilapidation, obsolescence or abandonment. Section 215 directs the building official to order repair, vacation or demolition depending on the degree of danger. A documented assessment and repair programme is the best position to be in if that conversation ever happens.

Who pays if part of the building collapses from neglect?

Article 2190 of the Civil Code makes the proprietor of a building responsible for damages from its total or partial collapse if it is due to the lack of necessary repairs. Where the damage comes from a construction defect covered by Article 1723, Article 2192 directs the injured party to the engineer, architect or contractor instead. Who counts as the proprietor in a condominium depends on how the project and its common areas are held, so have counsel read the master deed.

Can a unit owner remove a wall inside their unit?

Not safely without an engineer confirming the wall is non-structural, and not without following the declaration of restrictions, which Section 9 of RA 4726 allows to empower the management body to enforce its rules. Unit alterations can turn an otherwise sound building into one that needs assessing.

Sources

Statutes, code provisions and standards used in this guide. Links open in a new tab.

The triage check reflects AEDO's engineering practice. It is not a regulated method, it cannot certify a building as safe, and it is not legal advice on who bears liability in a particular condominium.

Commission an Assessment Sized to the Problem

Start with a survey that tells the board where it stands, then test only what the survey flags.

  • Visual survey and crack mapping across all levels
  • Targeted non-destructive testing and cores to NSCP 426.12
  • As-built documentation where drawings are missing
  • Written report with a repair programme; site assessments in Negros Oriental, Cebu, Luzon and NCR