Ponding, splashback, overflowing drainage or dampness near the foundation after rain
Describe the repeatable behavior before naming a fault.
← All symptom pathsORDERED SYMPTOM PATH · Exterior drainage
Water collecting near the house after rain
Read roof runoff, grading, hard surfaces, drains and soil saturation as one pathway before treating an interior symptom in isolation.
6 read-first stages36 deep guides60 questions6 research facets
↘OBSERVE · COMPARE · VERIFY
Gutter, downspout, roof edge, patio, driveway, grade or foundation perimeter
Location narrows geometry, but the source may be elsewhere.
Concentrated runoff can exceed drainage capacity and drive water toward vulnerable enclosure or below-grade interfaces
Use a mechanism to make testable predictions—not a diagnosis.
The six-stage spine comes before the deep library.
Move in order from observation to professional handoff. Open a research facet only when the core sequence shows why that detail matters.
01↘
IDENTIFYExterior drainage: How to identify the pattern before naming the fault
What details make this symptom useful evidence? This guide follows ponding, splashback, overflowing drainage or dampness near the foundation after rain through location, timing, competing mechanisms, safe checks, repair boundaries and outcome verification.
Begin here →02↘
MECHANISMExterior drainage: Why this symptom can appear away from its source
What physical pathway could connect trigger and location? This guide follows ponding, splashback, overflowing drainage or dampness near the foundation after rain through location, timing, competing mechanisms, safe checks, repair boundaries and outcome verification.
Continue stage 2 →03↘
COMPAREExterior drainage: How to separate the most common competing causes
Which observations strengthen or weaken each explanation? This guide follows ponding, splashback, overflowing drainage or dampness near the foundation after rain through location, timing, competing mechanisms, safe checks, repair boundaries and outcome verification.
Continue stage 3 →04↘
CHECKExterior drainage: Safe checks that create better evidence without destructive work
What can be checked without crossing a safety boundary? This guide follows ponding, splashback, overflowing drainage or dampness near the foundation after rain through location, timing, competing mechanisms, safe checks, repair boundaries and outcome verification.
Continue stage 4 →05↘
REPAIR VERIFYExterior drainage: How to define a repair outcome and verify that it holds
What evidence should remain after the source is corrected? This guide follows ponding, splashback, overflowing drainage or dampness near the foundation after rain through location, timing, competing mechanisms, safe checks, repair boundaries and outcome verification.
Continue stage 5 →06↘
HANDOFFExterior drainage: What to document before contacting the right professional
How can the next person start with evidence instead of guesses? This guide follows ponding, splashback, overflowing drainage or dampness near the foundation after rain through location, timing, competing mechanisms, safe checks, repair boundaries and outcome verification.
Continue stage 6 →ORDERED DEEP LIBRARY
Six facets. Six deliberate guide types in each.
Each facet moves from pattern recognition through mechanism, comparison, safe checks, scope boundaries and verification. The cards are ordered; they are not a wall of equivalent results.
FACET 01 / 06
Gutter overflow and roof-edge discharge
6 ordered guides · 8 direct-answer questions · 4 mapped official sources
Jump to related questions ↓- 01SIGNAL MAP
Field pattern: Gutter overflow and roof-edge discharge in Exterior drainage investigations
How blockage, slope, capacity and roof valleys concentrate water at specific edges. This guide uses a field pattern lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Start this facet → - 02MECHANISM GUIDE
How Gutter overflow and roof-edge discharge can create the observed Exterior drainage pattern
How blockage, slope, capacity and roof valleys concentrate water at specific edges. This guide uses a mechanism lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 03CAUSE COMPARISON
Gutter overflow and roof-edge discharge versus its closest lookalikes
How blockage, slope, capacity and roof valleys concentrate water at specific edges. This guide uses a cause comparison lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 04SAFE FIELD CHECKS
Safe, non-destructive checks for Gutter overflow and roof-edge discharge
How blockage, slope, capacity and roof valleys concentrate water at specific edges. This guide uses a safe checks lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 05SCOPE BOUNDARIES
Scope boundaries before acting on Gutter overflow and roof-edge discharge
How blockage, slope, capacity and roof valleys concentrate water at specific edges. This guide uses a scope boundary lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 06VERIFICATION HANDOFF
Verification plan and handoff for Gutter overflow and roof-edge discharge
How blockage, slope, capacity and roof valleys concentrate water at specific edges. This guide uses a verification lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet →
Questions answered in this facetWhy can this pattern appear for gutter overflow and roof-edge discharge? →What observation best separates this from a lookalike for gutter overflow and roof-edge discharge? →What should I document first for gutter overflow and roof-edge discharge? →Why might it happen only after a specific trigger for gutter overflow and roof-edge discharge? →All 8 questions →
FACET 02 / 06
Downspout discharge and extensions
6 ordered guides · 8 direct-answer questions · 4 mapped official sources
Jump to related questions ↓- 01SIGNAL MAP
Field pattern: Downspout discharge and extensions in Exterior drainage investigations
How outlet position, connection, blockage and splash zones affect foundation wetting. This guide uses a field pattern lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Start this facet → - 02MECHANISM GUIDE
How Downspout discharge and extensions can create the observed Exterior drainage pattern
How outlet position, connection, blockage and splash zones affect foundation wetting. This guide uses a mechanism lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 03CAUSE COMPARISON
Downspout discharge and extensions versus its closest lookalikes
How outlet position, connection, blockage and splash zones affect foundation wetting. This guide uses a cause comparison lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 04SAFE FIELD CHECKS
Safe, non-destructive checks for Downspout discharge and extensions
How outlet position, connection, blockage and splash zones affect foundation wetting. This guide uses a safe checks lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 05SCOPE BOUNDARIES
Scope boundaries before acting on Downspout discharge and extensions
How outlet position, connection, blockage and splash zones affect foundation wetting. This guide uses a scope boundary lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 06VERIFICATION HANDOFF
Verification plan and handoff for Downspout discharge and extensions
How outlet position, connection, blockage and splash zones affect foundation wetting. This guide uses a verification lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet →
Questions answered in this facetWhy can this pattern appear for downspout discharge and extensions? →What observation best separates this from a lookalike for downspout discharge and extensions? →What should I document first for downspout discharge and extensions? →Why might it happen only after a specific trigger for downspout discharge and extensions? →All 8 questions →
FACET 03 / 06
Grading, swales and low points
6 ordered guides · 8 direct-answer questions · 4 mapped official sources
Jump to related questions ↓- 01SIGNAL MAP
Field pattern: Grading, swales and low points in Exterior drainage investigations
How local slopes and depressions route or trap water beside the building. This guide uses a field pattern lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Start this facet → - 02MECHANISM GUIDE
How Grading, swales and low points can create the observed Exterior drainage pattern
How local slopes and depressions route or trap water beside the building. This guide uses a mechanism lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 03CAUSE COMPARISON
Grading, swales and low points versus its closest lookalikes
How local slopes and depressions route or trap water beside the building. This guide uses a cause comparison lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 04SAFE FIELD CHECKS
Safe, non-destructive checks for Grading, swales and low points
How local slopes and depressions route or trap water beside the building. This guide uses a safe checks lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 05SCOPE BOUNDARIES
Scope boundaries before acting on Grading, swales and low points
How local slopes and depressions route or trap water beside the building. This guide uses a scope boundary lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 06VERIFICATION HANDOFF
Verification plan and handoff for Grading, swales and low points
How local slopes and depressions route or trap water beside the building. This guide uses a verification lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet →
Questions answered in this facetWhy can this pattern appear for grading, swales and low points? →What observation best separates this from a lookalike for grading, swales and low points? →What should I document first for grading, swales and low points? →Why might it happen only after a specific trigger for grading, swales and low points? →All 8 questions →
FACET 04 / 06
Driveway, patio and walkway runoff
6 ordered guides · 8 direct-answer questions · 4 mapped official sources
Jump to related questions ↓- 01SIGNAL MAP
Field pattern: Driveway, patio and walkway runoff in Exterior drainage investigations
How hard surfaces collect, accelerate and redirect rain toward joints and foundations. This guide uses a field pattern lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Start this facet → - 02MECHANISM GUIDE
How Driveway, patio and walkway runoff can create the observed Exterior drainage pattern
How hard surfaces collect, accelerate and redirect rain toward joints and foundations. This guide uses a mechanism lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 03CAUSE COMPARISON
Driveway, patio and walkway runoff versus its closest lookalikes
How hard surfaces collect, accelerate and redirect rain toward joints and foundations. This guide uses a cause comparison lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 04SAFE FIELD CHECKS
Safe, non-destructive checks for Driveway, patio and walkway runoff
How hard surfaces collect, accelerate and redirect rain toward joints and foundations. This guide uses a safe checks lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 05SCOPE BOUNDARIES
Scope boundaries before acting on Driveway, patio and walkway runoff
How hard surfaces collect, accelerate and redirect rain toward joints and foundations. This guide uses a scope boundary lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 06VERIFICATION HANDOFF
Verification plan and handoff for Driveway, patio and walkway runoff
How hard surfaces collect, accelerate and redirect rain toward joints and foundations. This guide uses a verification lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet →
Questions answered in this facetWhy can this pattern appear for driveway, patio and walkway runoff? →What observation best separates this from a lookalike for driveway, patio and walkway runoff? →What should I document first for driveway, patio and walkway runoff? →Why might it happen only after a specific trigger for driveway, patio and walkway runoff? →All 8 questions →
FACET 05 / 06
Foundation-edge and below-grade entry
6 ordered guides · 8 direct-answer questions · 4 mapped official sources
Jump to related questions ↓- 01SIGNAL MAP
Field pattern: Foundation-edge and below-grade entry in Exterior drainage investigations
How repeated exterior loading can appear at wall, slab, joint or service penetrations after a lag. This guide uses a field pattern lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Start this facet → - 02MECHANISM GUIDE
How Foundation-edge and below-grade entry can create the observed Exterior drainage pattern
How repeated exterior loading can appear at wall, slab, joint or service penetrations after a lag. This guide uses a mechanism lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 03CAUSE COMPARISON
Foundation-edge and below-grade entry versus its closest lookalikes
How repeated exterior loading can appear at wall, slab, joint or service penetrations after a lag. This guide uses a cause comparison lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 04SAFE FIELD CHECKS
Safe, non-destructive checks for Foundation-edge and below-grade entry
How repeated exterior loading can appear at wall, slab, joint or service penetrations after a lag. This guide uses a safe checks lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 05SCOPE BOUNDARIES
Scope boundaries before acting on Foundation-edge and below-grade entry
How repeated exterior loading can appear at wall, slab, joint or service penetrations after a lag. This guide uses a scope boundary lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 06VERIFICATION HANDOFF
Verification plan and handoff for Foundation-edge and below-grade entry
How repeated exterior loading can appear at wall, slab, joint or service penetrations after a lag. This guide uses a verification lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet →
Questions answered in this facetWhy can this pattern appear for foundation-edge and below-grade entry? →What observation best separates this from a lookalike for foundation-edge and below-grade entry? →What should I document first for foundation-edge and below-grade entry? →Why might it happen only after a specific trigger for foundation-edge and below-grade entry? →All 8 questions →
FACET 06 / 06
Snowmelt and frozen drainage
6 ordered guides · 8 direct-answer questions · 4 mapped official sources
Jump to related questions ↓- 01SIGNAL MAP
Field pattern: Snowmelt and frozen drainage in Exterior drainage investigations
How frozen soil, ice, blocked outlets and daytime thaw create drainage patterns unlike ordinary rain. This guide uses a field pattern lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Start this facet → - 02MECHANISM GUIDE
How Snowmelt and frozen drainage can create the observed Exterior drainage pattern
How frozen soil, ice, blocked outlets and daytime thaw create drainage patterns unlike ordinary rain. This guide uses a mechanism lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 03CAUSE COMPARISON
Snowmelt and frozen drainage versus its closest lookalikes
How frozen soil, ice, blocked outlets and daytime thaw create drainage patterns unlike ordinary rain. This guide uses a cause comparison lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 04SAFE FIELD CHECKS
Safe, non-destructive checks for Snowmelt and frozen drainage
How frozen soil, ice, blocked outlets and daytime thaw create drainage patterns unlike ordinary rain. This guide uses a safe checks lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 05SCOPE BOUNDARIES
Scope boundaries before acting on Snowmelt and frozen drainage
How frozen soil, ice, blocked outlets and daytime thaw create drainage patterns unlike ordinary rain. This guide uses a scope boundary lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet → - 06VERIFICATION HANDOFF
Verification plan and handoff for Snowmelt and frozen drainage
How frozen soil, ice, blocked outlets and daytime thaw create drainage patterns unlike ordinary rain. This guide uses a verification lens to preserve evidence, compare alternatives and define the point where ordinary self-help stops.
Continue the facet →
Questions answered in this facetWhy can this pattern appear for snowmelt and frozen drainage? →What observation best separates this from a lookalike for snowmelt and frozen drainage? →What should I document first for snowmelt and frozen drainage? →Why might it happen only after a specific trigger for snowmelt and frozen drainage? →All 8 questions →
CAUSE COMPARISON
Open cause comparisons →Keep a plausible explanation provisional.
This path keeps blocked gutter, short discharge, adverse grade, surface drain failure, saturated soil and concealed supply leakage visible until timing, geometry, controls or recurrence make one route stronger than another.
60 practical questions connected to this path.
Open the complete cluster →QUESTION ATLASWhy does ponding, splashback, overflowing drainage or dampness near the foundation after rain appear only after a specific trigger?Read the direct answer →QUESTION ATLASCan ponding, splashback, overflowing drainage or dampness near the foundation after rain come from somewhere other than gutter, downspout, roof edge, patio, driveway, grade or foundation perimeter?Read the direct answer →QUESTION ATLASWhat should I record before the symptom disappears again?Read the direct answer →QUESTION ATLASHow can I compare the likely causes without opening the assembly?Read the direct answer →QUESTION ATLASWhich timing detail matters most for ponding, splashback, overflowing drainage or dampness near the foundation after rain?Read the direct answer →QUESTION ATLASWhat makes this pattern urgent instead of something to monitor?Read the direct answer →QUESTION ATLASCan weather, fans or closed doors move the symptom to another room?Read the direct answer →QUESTION ATLASWhich simple observation would weaken the leading explanation?Read the direct answer →QUESTION ATLASWhat should a professional see in the first handoff?Read the direct answer →QUESTION ATLASHow do I verify that a repair solved the source rather than the surface?Read the direct answer →QUESTION ATLASWhen should I stop ordinary self-checks for this pattern?Read the direct answer →QUESTION ATLASWhat related house area should I inspect next without causing damage?Read the direct answer →
SAFE EVIDENCE
Checks worth recording.
- Observe runoff during a safe rain event
- Map where each downspout discharges
- Compare ponding duration and interior symptoms after similar storms
PROFESSIONAL HANDOFF
Prepare a handoff →Make the first conversation more useful.
Provide rainfall timing, photos during flow, downspout routes, grade direction, ponding duration and the interior area affected.
