Whole-home application map
Start with the surface and the job it performs. Twenty-three locations cover homes, foundations, roofs, workshops, vehicles, compact structures, and wet zones without treating them as one generic cavity.
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.
An opening, joint, or service interface that needs a targeted and repairable closure.
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 23 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.
Where wiring, pipe, sleeves, ducts, and flues cross assemblies
The service, assembly, opening, movement, heat, fire role, and future access determine the closure.
Above outdoor air, vented crawl spaces, garages, or open piers
Floor insulation must connect at joists, rims, supports, cantilevers, chases, and exterior walls.
Between stories, rooms, chases, garages, and special-use spaces
Separate sound, services, radiant heat, garage separation, rated assemblies, and true thermal boundaries.
At ducts, air handlers, equipment rooms, drains, and controls
Duct sealing, insulation, encapsulation, enclosure work, equipment safety, and commissioning remain distinct scopes.
At metal roofs, walls, girts, purlins, posts, and panel joints
Panel temperature, indoor humidity, coatings, movement, corrosion, use, and replaceability shape the system.
In accessory buildings used for storage, vehicles, hobbies, or daily work
The present and future use controls moisture, ventilation, fire, impact, equipment, and finish requirements.
Inside moving shells with dense utilities and repair seams
Movement, vibration, corrosion, drains, wiring, fuels, ventilation, weight, and service access replace house assumptions.
In compact structures with different legal and structural systems
Classify the unit first, then address labels, transport, thin assemblies, steel bridges, utilities, and occupancy moisture.
At wet-zone shells, cabinets, equipment, plumbing, walls, and landscape details
Decorative filling, cabinet insulation, building enclosure work, and pool systems require different evidence.
Outside basement or crawl-space foundations before backfill
Foundation repair, waterproofing, drainage, insulation, protection, termites, and transitions form one buried system.
Between prepared ground layers and a concrete slab
Loads, base preparation, water, vapor, radon, utilities, slab edges, concrete work, and product properties must align.
On the exterior of low-slope roofs as a foam and coating system
Exterior SPF roofing combines substrate, drainage, foam, coating, details, quality control, repair, and maintenance.
Outside sheathing within a continuous insulation and recladding project
Exterior spray layers change drainage, openings, attachments, movement, fire exposure, protection, and repair.
Four location types
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.
Complete application core
The map keeps house cavities, ducts, metal buildings, vehicles, wet zones, roofing, exterior coatings, and below-grade work in separate evidence paths. Each route begins with the assembly and stop conditions before it discusses products.
Learn how to verify 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.