Tree, Roof and Drainage Risks

1. Why Trees, Roofs, and Drainage Cause the Most Claims
2. Tree Risks: What to Look For
3. Roof Risks: What to Look For
4. Drainage Risks: What to Look For
5. Who Is Responsible When Something Goes Wrong
6. When to Call a Professional
7. Documenting What You Find
8. Action Steps for Your Board

Most HOA insurance claims do not come from dramatic events. They come from problems that were visible for months before anyone acted on them. A tree with a dead limb overhanging the parking lot. A roof with missing flashing around a chimney. A storm drain that has been partially blocked since last fall. These are the conditions that turn into claims, and in most cases they are entirely preventable if a board knows what to look for and takes action before something fails.

Trees, roofs, and drainage are the three property risk categories that generate the most HOA insurance claims outside of direct storm damage. They are also the three areas where early detection has the highest return. A $500 tree trimming prevents a $15,000 car damage claim. A $200 roof inspection catches a flashing problem before it becomes a $40,000 water intrusion repair. A $150 drain cleaning prevents a flooded parking garage.

This guide covers what boards should look for in each category, who is responsible when something goes wrong, and when to bring in a professional rather than relying on a visual walk-through.

Why Trees, Roofs, and Drainage Cause the Most Claims

These three categories share a common characteristic: the damage they cause tends to be hidden or gradual until a triggering event makes it catastrophic. A tree looks healthy right up until a storm reveals that it was structurally compromised. A roof looks intact from the ground until water is coming through a ceiling. A drain looks clear until a heavy rain reveals that it cannot handle the volume.

They also interact with each other. Tree roots block drainage systems. Dead leaves clog gutters and cause water to back up onto roofs. Overhanging branches scrape and damage roofing material. A board that inspects these three systems together, rather than in isolation, gets a more accurate picture of the community's overall risk exposure.

The other reason these categories matter is liability. When a tree falls on a car and the board knew or should have known the tree was compromised, the HOA's legal position is very different than if the failure was genuinely unforeseeable. The same applies to a roof that has been leaking into a unit for months, or a drainage problem that has been reported but not addressed. Documented awareness of a problem that was not fixed creates liability. Documented awareness followed by action creates a defense.

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Tree Risks: What to Look For

Trees are one of the most significant liability exposures in HOA common areas, and one of the most commonly underassessed. A board does not need to be an arborist to identify conditions that warrant professional attention. The following signs are visible during a basic walk-through and each one warrants follow-up.

Dead or dying branches. Branches that are bare when surrounding branches have leaves, that have bark peeling away, or that show visible decay are candidates for failure in wind. The higher and larger the branch, the greater the risk if it falls.

Cracks or splits in the trunk or major limbs. A visible crack or split in a tree trunk or primary branch is a structural warning sign. These are most visible after storms or during dry periods when the wood contracts.

Significant lean. A tree that has developed a noticeable lean, particularly one that has changed lean since the last inspection, may have a compromised root system. Lean toward a building, walkway, or parking area is a priority concern.

Fungal growth at the base. Mushrooms or shelf fungi growing at the base of a tree or on exposed roots indicate internal wood decay. A tree can appear healthy above ground while being structurally compromised at its base.

Roots lifting pavement or growing toward foundations. Surface roots that are lifting sidewalks or pavement create both a trip hazard and a sign that the tree's root system is aggressive. Roots growing toward building foundations can cause structural damage over time.

Overhanging branches near buildings or power lines. Any branch that extends over a roof, near a power line, or directly above a frequently used area is a risk management concern regardless of the tree's overall health.

Recent storm damage. After any significant wind event, walk the property specifically to assess trees. Split branches, partial uprooting, and root heaving may not be visible from a distance but become apparent on a close inspection.

Roof Risks: What to Look For

Roofs are the most costly single component of most HOA properties and the one most likely to cause water intrusion damage to multiple units or common areas when they fail. The challenge is that most roof problems are not visible from the ground until they are already serious. Boards should conduct a ground-level visual inspection annually and arrange a closer inspection by a licensed roofing contractor at least every two to three years, or after any significant storm.

Missing, lifted, or curled shingles. Shingles that are missing, visibly lifted at the edges, or curling up at corners are no longer providing adequate weather protection. Even one or two missing shingles can allow water entry during a heavy rain.

Damaged or missing flashing. Flashing is the metal material that seals the joints around chimneys, vents, skylights, and where the roof meets a wall. Damaged, missing, or improperly sealed flashing is one of the most common causes of roof leaks because water finds the path of least resistance at every penetration and joint.

Sagging areas. Any section of a roof that appears to sag or dip from its normal plane suggests structural issues below the surface, potentially including rot, water damage to the decking, or failed structural members. This warrants immediate professional assessment.

Gutters pulling away from the roofline. Gutters that are visibly separating from the fascia board suggest either overloading from debris, ice damage, or rot in the underlying wood. Gutters that are not properly attached cannot do their job of directing water away from the building.

Granule loss in gutters or on the ground. Asphalt shingles shed granules as they age. Significant granule accumulation in gutters or visible bare patches on shingles indicates a roof approaching the end of its useful life.

Staining on interior ceilings or walls. Water stains on the ceilings or interior walls of common areas are evidence of an active or recent leak. The source may not be directly above the stain, as water can travel along structural members before appearing.

Clogged gutters and downspouts. Gutters packed with leaves and debris cannot drain, which causes water to back up under shingles and overflow against the fascia and foundation. Clean gutters at least twice a year and more often if your community has significant tree coverage.

Drainage Risks: What to Look For

Drainage problems are often invisible until a rain event reveals them, but most drainage failures have warning signs that a board can identify during a dry-weather inspection. Poor drainage is one of the leading causes of foundation damage, parking area flooding, and water intrusion into buildings, all of which generate significant insurance claims.

Standing water after rain. Any area of the property that regularly holds water after a rain event, particularly near building foundations or in walkway areas, indicates a drainage problem. Standing water near foundations is one of the most damaging long-term conditions a community can allow to persist.

Negative grading. Ground that slopes toward a building rather than away from it directs water against the foundation. This is one of the most common and preventable causes of foundation water intrusion. It can often be corrected with relatively inexpensive regrading.

Blocked storm drains and catch basins. Storm drains clogged with leaves, sediment, and debris cannot handle heavy rain volume. Walk every drain in your community before storm season and clear any that are blocked. This is a low-cost maintenance task with a high return in avoided damage.

Downspouts discharging against the foundation. Downspouts that terminate at or near the building foundation direct all roof runoff against the structure. Extensions that carry water at least four to six feet from the foundation significantly reduce foundation water exposure.

Erosion channels. Visible erosion channels in landscaping, particularly those leading toward buildings or parking areas, indicate that water is concentrating and flowing in ways that were not intended. Left unaddressed, erosion channels worsen with every rain event.

Drainage swales that are overgrown or blocked. Drainage swales, the shallow channels designed to direct water across the property, must be kept clear of vegetation and debris to function. An overgrown swale may look like a landscaping issue but it is a drainage problem.

Moisture staining or efflorescence on building exteriors. White or gray mineral deposits (efflorescence) on concrete or masonry at ground level, or water staining on exterior walls near grade, indicates that moisture is moving through the building material. This is a sign of either drainage problems, negative grading, or both.

Who Is Responsible When Something Goes Wrong

When a tree falls, a roof leaks, or flooding damages property, the question of who is financially responsible depends on where the problem originated and what the HOA's governing documents say about maintenance responsibilities.

Trees in common areas are generally the HOA's responsibility, including the cost of removal after a failure and any damage the tree causes to HOA property. Whether the HOA is responsible for damage to a homeowner's vehicle or unit depends on whether the board knew or should have known the tree was a risk. A tree that fails without warning after showing no signs of distress is a different situation from one that the board had been told was compromised and had not addressed.

Roofs in a condominium community are typically HOA responsibility for the structure and exterior. Water damage inside units that results from a roof failure is more complex and depends on the HOA's master policy structure and whether the board responded to known roof issues in a timely way.

Drainage of common areas is HOA responsibility. Drainage problems that cause damage to individual units, particularly flooding into ground-floor units, create liability for the HOA when the board was aware of the drainage issue and had not addressed it.

The consistent thread is awareness and action. A board that identifies a problem and addresses it promptly is in a fundamentally different legal and financial position than one that identifies a problem, documents it, and takes no action. If you find something during an inspection, act on it or formally document the decision-making process around it.

When to Call a Professional

Board members conducting a visual walk-through are not expected to be arborists, roofing contractors, or civil engineers. The walk-through is about identifying conditions that warrant professional attention, not diagnosing or resolving them. The following conditions should always trigger a professional assessment rather than a board-level decision.

• Any tree showing two or more warning signs described above, or any tree near a building that shows even one sign of structural compromise
• Any roof showing sagging, multiple missing shingles, or evidence of active water intrusion into common areas or units
• Any drainage problem that has been present for more than one rain cycle without improvement
• Any situation where the board is unsure whether a condition is serious

When hiring professionals for these assessments, confirm that they carry adequate general liability insurance and workers' compensation coverage before work begins. Require a certificate of insurance in advance.

Documenting What You Find

Every inspection should produce a written record. At minimum, document the date of the inspection, who conducted it, what was observed, and what action was taken or planned. Photographs with timestamps are essential. A clear photo of a damaged roof section or a blocked drain taken on a specific date is valuable evidence that the board was actively monitoring property conditions.

Documentation serves two purposes. First, it creates a record of board diligence that is useful if a claim or dispute arises. Second, it creates a maintenance history that helps future boards understand what has been addressed and what may be recurring. Many HOA boards lose institutional knowledge when members rotate off. A documented inspection history is one of the most practical ways to preserve it.

Store inspection records in your HOA document library where all board members can access them. Tools like Neighborhood.online make it straightforward to maintain a central document repository that new board members can access immediately when they join.

For a complete guide to creating a defensible record of safety issues and maintenance actions, see our post on documenting the issues you find.

Action Steps for Your Board

Use these steps to build tree, roof, and drainage risk assessment into your community's regular maintenance calendar.

• Schedule a full property walk-through before storm season each year using a written checklist
• Take dated photographs of all areas of concern during every inspection
• Have all large trees near buildings, walkways, and parking areas assessed by a licensed arborist annually
• Schedule a roofing contractor inspection of all HOA-owned roofs every two to three years and after any significant storm
• Clear all storm drains, gutters, and drainage swales before storm season and again in late fall
• Assess grading around all building foundations and correct any negative slope
• Confirm that all downspouts discharge at least four feet from building foundations
• Document all findings in writing and store records in a central location accessible to all board members
• Act on identified issues promptly or document the decision-making process if action is deferred
• Require current certificates of insurance from every contractor hired to address issues found during inspection

For a complete guide to what your board should require from every contractor before work begins, see our post on vendor insurance requirements.

Free Download: HOA Insurance Review Checklist

Use this free checklist to review every policy type, coverage limit, exclusion, and vendor requirement before your renewal date. 49 items across 6 sections, available in PDF and Word.

Download Free Checklist