WALLS / EXPLAINED
Explore what the material does, what it does not do and which questions your designer needs to answer.
Explore the wallA CLEARER PICTURE
Understand the functions first. Then develop the appropriate details for the chosen system and site.
The earlier junction illustration has been withdrawn. There is no universal hemp-lime wall, floor or roof detail. Choose a documented system, then ask qualified designers to coordinate structure, moisture, fire, insulation and ventilation.
The engineered frame or panels carry loads.
ExploreHemp-lime and hemp-fibre products have different roles and specifications.
ExploreWeather protection, drying and deliberate ventilation are separate design tasks.
ExploreIn many hemp-lime systems, a separately designed frame carries building loads. Never treat insulating infill as structural merely because it surrounds a frame. Ask the structural engineer which parts carry loads and what product-specific evidence applies.
WHAT YOU ARE LOOKING AT
The woody hemp core is known as shiv or hurd. Mixed with a specified binder and water, it forms a hemp-lime composite. The formulation, density and curing conditions affect performance.
The timber and finish shown here help illustrate the broader material palette. This image is not a tested product sample or a mixing recipe.
Understand the ingredients
THREE COMMON ROUTES
Material placed around a designed frame. Discuss mix control, workmanship, weather protection and drying.
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Manufactured units assembled on site. Confirm exact block roles, mortar, openings and structural design.
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Off-site assemblies may be offered by specific providers. Check the exact system, lifting, interfaces and destination-market evidence.
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WORKMANSHIP MATTERS
For cast work, ask about the specified mix, training, equipment, quality checks, temporary protection and readiness for finishes. Use manufacturer guidance and trained professionals.
No universal mix ratio or drying duration is supplied here. Site conditions and the exact system matter.
Plan the sequenceWALLS / FLOORS / ROOFS
Hemp-lime can be used beyond walls, but the mix, support, moisture protection and installation are not interchangeable. The section above intentionally shows hemp-lime in the wall only.
01 / WALL INFILL
Common timber-frame applications use hemp-lime as insulating infill with compatible finishes. The frame and foundations carry building loads.
Confirm: exposure, opening details, wall-base protection, specified mix and drying before finishes.
02 / FLOOR INSULATION
Some systems use hemp-lime in insulating floor slabs. Ground floors and suspended floors need different support and moisture strategies; do not assume hemp-lime replaces structural concrete or joists.
Confirm: supporting structure, load-distributing finish, moisture-control design, drying and compatibility of coverings. Keep untreated hemp-lime out of ground water.
03 / ROOF OR CEILING INSULATION
Specified hemp-lime roof applications can use insulating infill on suitably designed ceiling support or formwork. It is not the roof covering, waterproof layer or a substitute for beams and rafters.
Confirm: wet construction weight and permanent loads, support, weather protection, drying and airtight junctions. Block-based roof insulation is a distinct product-specific design.
Hemp-fibre insulation and hemp-lime composite are different products. A batt datasheet, roof certification or wall test cannot be transferred to another material or assembly.
UK Hempcrete: walls, floors, ceilings and roof applications
IsoHemp: specific floor and roof block applications
OzHemp 2025 manufacturer installation manual: distinct wall, roof and floor systems
The Australian manual illustrates system differences, not UK or Irish approval. No installation recipe or universal performance figure is supplied. Consult the chosen system provider and qualified project designers.
Ask for a coordinated structural design, not an assumption based on a material name.
Explore
Agree water management, drying assessment, finish readiness and ventilation.
ExploreCheck product-specific performance, local requirements and the whole scope with qualified advisers.
ExploreFROM CURIOSITY TO A CLEARER BRIEF
Five simple questions. A useful starting point, not a technical specification.
ORIGINAL VISUAL EXPLAINERS
Original illustrative concepts, separate from the real construction archive. Not supplier products, completed projects, tested samples or engineering details.
Concept of material placement around a separately designed frame. Not a mixing or installation instruction.
Original illustrative conceptConcept of blockwork as infill. Exact structural roles depend on the specified system.
Original illustrative conceptConcept of off-site wall assemblies. Lifting, interfaces and performance need product-specific engineering.
Original illustrative concept
Original texture study, not a supplier product sample or tested material.
Original illustrative conceptHEMPCRETE CONSTRUCTION ARCHIVE
Supplied archive photographs showing installation stages. Not completed homes, our new brand’s portfolio or certified system details.
Hempcrete wall and window openings during construction.
Archive photograph · Open image for full detail
Close-up of hemp-based infill before final finishes.
Archive photograph · Open image for full detail
Wall-to-frame junction and services during installation.
Archive photograph · Open image for full detail
Infill around an opening, with temporary access scaffold.
Archive photograph · Open image for full detail
Hempcrete installation archive photograph.
Archive photograph · Open image for full detailConstruction-stage images are evidence of what was photographed, not proof of performance or compliance. Project authorship, technical details and finished condition are not established here. No location is disclosed.