Whole-home application map
Start with the surface and the job it performs. Ten locations can mean ten different decisions about water, air, heat, sound, fire, access, and future repairs.
Between conditioned space and outdoors, soil, or an unconditioned space.
Between rooms, often for privacy or sound rather than thermal performance.
A garage, rated separation, equipment area, or another condition with added duties.
Outdoors, soil, attic, garage, crawl space, or another conditioned room?
Heat, air, water, sound, vibration, or a local gap?
Open framing, one-sided access, a finished cavity, or exterior work?
Exact product, approved use, protective finish, and inspection plan.
Explore by location
Filters help you narrow the map. They do not mean every listed location should use spray foam.
Showing all 10 areas
Above the top-story ceiling
Keep a vented attic outside the conditioned enclosure by aligning ceiling air control and insulation.
Following the sloped roof
An unvented roofline changes the enclosure and can change conditions around sheathing, ducts, and equipment.
Around conditioned living space
Wall insulation has to work with cladding, drainage, sheathing, air control, vapor control, and drying.
Between rooms inside the home
A partition between conditioned rooms usually has no exterior thermal duty. Sound, privacy, and service access may still matter.
Where the floor framing meets the foundation
The visible rim cavity is only part of a perimeter connection that may include sill, masonry, framing, and services.
At below-grade foundation walls
Interior insulation belongs after the source of water, dampness, efflorescence, or wall damage is investigated.
At the floor above or the crawl-space perimeter
Choose whether the boundary follows the floor or foundation walls, then coordinate ground moisture and water management.
Between garage air and occupied rooms
This boundary manages heat and air while preserving pollutant separation, fire protection, and safe equipment conditions.
Beside small attic spaces
The boundary can run around the room or follow the main roofline. Floor, wall, roof, and access-panel transitions must connect.
At local joints and penetrations
Small air-sealing products have defined joint sizes, movement limits, substrates, and locations. Exterior drainage remains separate.
Three boundaries
Commercial application lists can make unlike projects look interchangeable. These checks stay attached to every route through our map.
Roof, wall, foundation, and plumbing water need diagnosis and repair before concealment.
Complete partitions, doors, ceilings, framing, penetrations, and flanking paths determine the result.
Fire protection, product approvals, ventilation, clearances, and local inspection remain separate requirements.
Outside this residential map
These uses appear frequently in product marketing. We will not transfer a home-cavity claim to a vehicle, duct, roof coating, pool detail, or exposed exterior surface. The substrate, fire exposure, movement, weather, service conditions, approvals, and installation documents can be different.
Until a dedicated guide checks a use, start with the exact manufacturer's permitted applications and bring in the responsible vehicle, mechanical, enclosure, or code professional.
Learn how to read product documentsCommon questions
It may be considered for a documented interior-wall assembly, but a partition between conditioned rooms usually is not part of the thermal enclosure. Define the sound, privacy, air-control, fire, or special-use goal and compare complete wall systems before selecting a material.
No universal product or method fits every location. Product format, approved use, substrate, access, moisture design, installed thickness, exposure controls, and required protective construction change by application.
Start with the building location and the role of the assembly. Identify water, air, heat, vapor, sound, fire, access, and service conditions. Then compare materials and exact products that document the intended use.