Basement and crawl-space observatory
See soil water, capillary transport, summer condensation, pressure-driven odors and structural support together.
See where rain, plumbing water, vapor and capillary moisture can enter, travel, collect and dry.
Foundation wall
Seepage, capillary moisture, cracks and salts.
Open connected dossier →Same building. Different hidden stories.
Watch the pathway unfold
Each simulation separates trigger, transport route, visible symptom and verification.
Capillary moisture rises through masonry
Small pores draw ground moisture upward and toward drying surfaces, carrying dissolved salts.
Negative pressure draws crawl-space odor indoors
Exhaust equipment or stack effect pulls air through floor and service penetrations from a damp crawl space.
Summer air condenses in a cool crawl space
Warm humid outdoor air enters and reaches surfaces cooled by ground contact or air conditioning.
See what the layer does to the material
Materials record exposure differently. Their response can reveal a pathway without proving the source.
Gypsum board after a hidden leak
Paper facings stain and soften while the core loses strength if saturation persists.
brown rings, sagging, soft edges and paper separation → ▧WoodWood under long-term wetting
Repeated wetting changes moisture content, dimensions, surface condition and eventually biological durability.
swelling, checking, staining and decay risk → ▧BrickBrick under persistent saturation
Absorptive masonry stores water, changes drying direction and increases salt and frost exposure.
darkening, efflorescence and face spalling → ▧Cellulose InsulationCellulose insulation after roof water entry
Dense fibers store and spread water, delaying visible drips and drying.
matting, delayed stains and persistent elevated moisture → ▧Spray FoamClosed-cell foam concealing a leak route
Low-permeance foam can redirect water and limit inspection of the substrate behind it.
water emerging far from entry and hidden sheathing condition → ▧ConcreteConcrete carrying dissolved salts
Moisture moves through pores and leaves crystalline deposits as it evaporates.
white deposits, tide lines and coating failure → ▧GlassInsulated glazing after seal failure
The cavity moisture load overwhelms desiccant and produces internal haze.
between-pane fogging and mineral marks → ▧Laminate FlooringLaminate flooring after a local leak
Fiber-based cores swell at joints and rarely return to their original shape.
raised seams, edge swelling and surface tenting →The diagram suggests routes.
The real trigger decides.
Describe what changed, where it happened and what weather or operating cycle came first.
