Hemp and lime panel - Thermo-acoustic dehumidifying insulation board | 2.5 cm

A single panel with multiple functions: thermally and acoustically insulates, actively dehumidifies, prevents mold, and sanitizes environments. All in a single 2.5 cm product.

Maximum acoustic performance: 41 dB certified acoustic reduction in just 2.5 cm thickness. Recognized as Best Acoustic Solution 2025 for the best performance-to-size ratio.

Solves rising damp: thanks to the porosity of hemp and the alkaline properties of lime, it absorbs and gradually releases moisture, permanently eliminating mold and condensation.

No mess, reduced time: quick adhesive installation on walls to be insulated or dry installation on substructures. Clean construction site, no traditional plaster needed.

The LHP Panel is the optimal solution for:

ANTI-RISING DAMP LININGS
Damp walls in historic buildings
Underground cellars and taverns
Ground floors with persistent dampness
North-facing walls with condensation problems

THIN INTERNAL INSULATION
Renovations where surface area cannot be reduced
Apartments with volumetric constraints
Rooms, living rooms, studies needing insulation
Historic buildings with architectural constraints

PARTITION WALLS AND FALSE CEILINGS
Natural and healthy alternative to traditional plasterboard
Acoustic insulation between rooms
Sound absorption in home theaters, music rooms
Dehumidification of bathrooms and kitchens

DRY PARTITION WALLS
Internal partitions with high acoustic performance
Breathable partition walls
Elements requiring structural lightness

RENOVATIONS AND RESTORATIONS
Insulation and dehumidification of existing buildings
Interventions with Ecobonus and building renovations
Conservative restoration of historic buildings
Maximizing internal usable surface area

VAILABLE FORMAT

LHP Panel Standard
Dimensions: 60 × 80 × 2.5 cm
Panel surface: 0.48 sqm
Density: 375-400 kg/m³
Thickness: 2.5 cm fixed
SPECIAL VERSION: PRE-COUPLED LHP PANEL

Also available in pre-coupled version with Class A fire-resistant board for applications requiring maximum fire resistance.
Ideal for wood studs and galvanized sheet metal.

SALES METHOD
The LHP Panel is sold by mq
Minimum quantities and delivery methods can be customized based on site needs.
For large quantities: contact us for a dedicated quote with reserved conditions.

Email: info@canapuglia.it

Phone: +39 080 968 1836

WhatsApp: Chat with us

SEND US:

Estimated quantity (sqm or number of panels)
Intended application (humidity cladding, external insulation, false wall)
Construction site destination
Need for pre-coupled fireproof version

You will receive a dedicated quote within 24 hours with:

Reserved price
Optimal quantity of panels
Complete system (RasaeIncolla adhesive + skim coat + mesh)
Technical support for stratification design

The Hemp and Lime Panel system achieves maximum performance in combination with:

Rasa e Incolla - High-performance mineral adhesive and skim coat for bonding hemp and lime panels to masonry

RASANTE for hemp and lime panels- Specific skim coat and finish based on hydrated lime for reinforced skimming on Hemp and Lime Panels. White color, granulometry 1.00 mm

KAP8 MESH - Alkali-resistant fiberglass mesh gr. 160 for standard reinforced skimming (interiors)

330 MESH - High-strength alkali-resistant fiberglass mesh 330g/m² for reinforced skimming (exteriors - mandatory)

PVC corner beads with pre-mounted mesh - For reinforcing vertical and horizontal corners

Pre-compressed sealing tape - For sealing joints with window frames, sills, beams

The LHP Panel guarantees regulatory compliance and safety:

Fire Reaction Class 1 - B-s1, d0 (with plastering) - Fire safety classification

100% natural and non-toxic materials - Zero VOC, safe during processing and use

Certified environmental healthiness - Free from harmful substances, suitable for sensitive environments (schools, hospitals, homes)

High breathability - Vapor diffusion resistance μ 4.5 m for open-diffusion buildings

100% recyclable - Circular economy and sustainable end-of-life management

Best Acoustic Solution 2025 - Recognition for best acoustic performance/thickness ratio: 41 dB in just 2.5 cm

What is the LHP Panel used for?

The LHP Panel is a multifunctional panel that simultaneously solves multiple problems:

1. Dehumidification and anti-moisture:
Main application for damp walls with rising damp, condensation, and mold issues. Hemp absorbs excess moisture and releases it gradually, while alkaline lime prevents mold formation.

2. Thermal insulation:
With thermal conductivity λ 0.07 W/(mK), it offers effective insulation while occupying minimal space (2.5 cm). Ideal for internal insulation where surface area cannot be sacrificed.

3. Acoustic insulation:
With 41 dB of acoustic reduction, it is the best solution for those seeking maximum soundproofing performance in minimum thickness.

4. Indoor air sanitization:
Natural materials (hemp + lime) improve air quality, release no harmful substances, and naturally regulate humidity.

In summary: one product to solve moisture, thermal insulation, acoustic insulation, and indoor wellbeing.


How is the LHP Panel installed?

The LHP Panel is installed using two different techniques:

TECHNIQUE 1: GLUED TO MASONRY
For anti-moisture cladding and internal insulation.

1. Prepare the surface (clean, consistent, grease-free)
2. Apply RasaeIncolla adhesive with notched trowel to the wall
3. Spread a thin uniform layer on the LHP panel
4. Glue to the wall with light pressure and tap with rubber mallet
5. Install from bottom to top with vertical joints offset by 25 mm
6. Seal pipes and junctions with polyurethane foam and sealing tape

TECHNIQUE 2: DRY INSTALLATION ON SUBSTRUCTURES
For partition walls, false ceilings, dividing walls.

1. Create substructure in wood or galvanized sheet metal
2. Fix LHP panels to the substructure
3. Pre-coupled version with fire-resistant board available for this application

After installation:
- Reinforced plastering with RASANTEper LHP and RETE KAP8 mesh (interiors) or RETE 330 (exteriors mandatory)
- Finishing with breathable products (silicate paints, clay coatings, lime plasters)

Need support?
Complete installation manual available. Contact us for free technical assistance.


Does the LHP Panel really eliminate rising damp?

Yes, the LHP Panel is extremely effective against rising damp thanks to a natural mechanism:

How it works:

1. Active absorption:
Hemp has a porous structure capable of absorbing large amounts of moisture without becoming saturated or deteriorating.

2. Gradual release:
Absorbed moisture is slowly released into the environment when conditions allow, maintaining constant hygrometric balance.

3. Alkaline effect of lime:
Lime has a high pH that inhibits mold formation and neutralizes bacteria. Mold cannot develop in an alkaline environment.

4. Breathability:
Vapor resistance μ 4.5 m allows the wall to "breathe" without creating barriers that trap moisture.

Concrete result:
After applying LHP Panel to a damp wall:
- Visible elimination of moisture stains in 2-4 weeks
- Disappearance of mold odor
- Stabilization of indoor climate
- Permanent prevention of new formations

Important: If rising damp is very severe, complementary systems should always be evaluated (chemical wall cutting, perimeter drainage). The LHP Panel works best in synergy with remediation of the primary cause.

Free technical consultation: Contact us for evaluation of your specific case.


What is the difference between LHP Panel and Hemp Fiber Panels?

These are two completely different products for different applications:

LHP PANEL (Hemp and Lime Board):
- Composition: hemp + lime (rigid mineral material)
- Thickness: 2.5 cm fixed
- Density: 375-400 kg/m³
- Main application: anti-moisture cladding, internal insulation, partition walls
- Installation: glued to wall or fixed to substructure
- Primary function: dehumidification + exceptional acoustic insulation
- Acoustic reduction: 41 dB (best performance)
- Requires: final reinforced plastering

HEMP FIBER PANELS (Mattress):
- Composition: 85% hemp fiber + 15% recycled fibers
- Thicknesses: 4-5-6-8-10 cm
- Density: 40 kg/m³ (flexible) or 80 kg/m³ (semi-rigid)
- Main application: roof insulation, cavities, attics, partition walls, floors
- Installation: between structures, in cavities, non-walkable attics
- Primary function: thermal insulation (excellent summer phase shift)
- Conductivity: λ 0.0375-0.04 W/(mK) (better thermal insulation)
- Does not require plastering (covered by other layers)
- Can also be used outdoors (80 kg/m³ density for facade insulation)

Which to choose?

Moisture, mold, condensation problems → LHP Panel

Maximum acoustic insulation in minimal thickness → LHP Panel (41 dB in 2.5 cm)

Roof, attic, cavity insulation → Hemp Fiber Panels (more thickness = more insulation)

Internal insulation with limited space → LHP Panel

Maximum summer thermal phase shift → Hemp Fiber Panels (greater thicknesses)


Can the LHP Panel be used outdoors?

Yes, but with specific precautions:

The LHP Panel can be used in external insulation, but requires mandatory reinforced plastering with:

- High-resistance mesh RETE 330 (330g/m², 6.8×5.5 mm mesh)
- Double layer of RASANTEper LHP (first layer 5 mm + second layer 2-3 mm)
- External finish with breathable, highly water-repellent coatings (paste coatings, hydrophobized mineral coatings + siloxane paint)

IMPORTANT: For exteriors, prefer light colors to avoid excessive heat absorption under solar radiation.

Recommended outdoor applications:
- Internal insulation on north-facing walls
- Cladding on damp facades
- Internal insulation of perimeter walls

For external insulation on large surfaces: also consider 80 kg/m³ density Hemp Fiber Panels which are specifically designed for vertical external applications.


How much does the LHP Panel cost?

The cost varies based on:
- Quantity ordered (panels)
- Version (standard or pre-coupled with fire-resistant board)
- Delivery destination
- Complete system (panels + adhesive + plaster + mesh)

Why request a personalized quote?
Every renovation has different needs. We want to offer you:
- Best price based on quantity
- Complete system with all necessary materials
- Technical support for accurate quantity calculation
- Advice on which version to choose

Request a free quote:
Email: info@canapuglia.it
Phone: +39 080 968 1836
WhatsApp: Chat with us

You will receive within 24 hours:
- Dedicated price
- Optimal quantity of panels + accessories
- Complete installation manual
- Free technical support

SUPPORT AND SPECIALIZED TRAINING

Are you dealing with a humidity problem or do you need insulation with reduced thickness? CanaPuglia offers comprehensive technical support for professionals and private individuals.

BIO-BUILDING COURSE

Renovating and Building with Hemp - Workshop with a module dedicated to the installation of the hemp and lime panel, armed plastering techniques, resolution of rising damp, and natural dehumidification.

Discover the course: https://canapuglia.it/blogs/corsi/ristrutturare-e-costruire-con-la-canapa

PERSONALIZED TECHNICAL CONSULTING

Rely on the experience of Claudio Natile and the CanaPuglia technical team for:

• Diagnosis of humidity and mold problems
• Optimal solution choice (cladding, external insulation, internal false wall)
• Calculation of panel quantity + complete system
• Assistance during installation work

Book your consultation: https://canapuglia.it/products/consulenza-agronomica-canapa?_pos=1&_sid=518a633af&_ss=r

CONTACT US FOR TECHNICAL SUPPORT

Email: info@canapuglia.it

Phone: +39 080 968 1836

Headquarters: C.sa San Bartolomeo 779, Monopoli, BA

Go to the Contact page: https://canapuglia.it/pages/contact

Hemp and Lime Panel Installation Manual (PDF) - Complete guide with synthetic operations, standard and reinforced skimming cycles, interior and exterior finishes

Hemp and Lime Panel Technical Data Sheet - Complete technical specifications, acoustic performance, material characteristics