TECHNOMELT^® - Hotmelt adhesives for ridge ventilation systems

When it comes to pitched roof construction, every component contributes to durability, ventilation, and watertight performance. Ridge ventilation systems are essential for maintaining airflow, regulating temperature, and preventing condensation within the roof structure. To perform optimally, ridge vent products need adhesive technologies that deliver secure bonding, weather resistance, and production efficiency. This is where TECHNOMELT^® hotmelt adhesives excel.

During the production of ridge ventilation rolls, manufacturers face the challenge of bonding multi-layer materials that must perform in both high heat and cold weather conditions once installed on roofs. Ridge rolls typically consist of nonwoven or aluminum membranes combined with butyl or PP layers, all requiring fast, consistent, and durable adhesive application.

The TECHNOMELT^® hotmelt range is designed to handle this complexity. Our formulations offer:

• Fast setting and high initial tack – enabling efficient processing and minimal cycle time.
• Stable bond lines under heat exposure – maintaining adhesion during hot summer temperatures.
• Flexibility at low temperatures – preventing cracks or delamination in cold climates.
• Clean application properties – reducing stringing, clogging, or residue during production.

These characteristics make TECHNOMELT^® the preferred bonding solution for ridge ventilation system manufacturers,  helping ensure consistent product quality, higher line speeds, and reduced waste on the production line.

Because ridge rolls are installed in widely varying ambient conditions, adhesives must withstand thermal cycling, moisture, and mechanical stress. TECHNOMELT^® PS 1581 delivers consistent performance across these demands, providing a stable bond line that enhances overall roof system durability and safety.

High-speed, automated lines for ridge ventilation rolls require adhesives with precise application control. The TECHNOMELT^® range is tailored to these demands, delivering consistent performance in spray, bead, and slot‑die coating systems.

• Spray Application:

Ideal for wide, flexible nonwoven materials. The adhesive can be applied evenly over large surfaces, ensuring uniform bonding without excess material use.

• Bead Application:

Suitable for structured ridge rolls where localized bonding is required. The adhesive maintains strong tack and cohesive strength along narrow lines, providing efficient material use.
 

This application flexibility allows manufacturers to tailor adhesive use to their specific equipment setup — whether they are producing ventilation rolls, ridge sealing tapes, or composite membranes.

By choosing the right TECHNOMELT^® adhesive, production engineers gain both process stability and material compatibility, helping reduce rework and avoid performance failures in the field.

Ridge ventilation components are continuously exposed to harsh environmental conditions — from UV radiation and temperature fluctuations to rain, snow, and wind pressure. The adhesive used must withstand all of these while maintaining strong adhesion and material integrity.

Thermal Resistance

Ridge rolls installed under tiles often face direct solar radiation, driving temperatures well above 176°F (80°C). TECHNOMELT^® adhesives are designed to maintain mechanical strength and cohesion even under prolonged heat exposure, preventing any creeping or weakening of the bond.

Cold Flexibility

In colder regions or during winter months, materials tend to contract. TECHNOMELT^®’s elasticity ensures that even at sub-zero temperatures, the adhesive remains flexible, maintaining a tight seal without cracking or delaminating.

Moisture and Aging Resistance

TECHNOMELT^® PS adhesives resist water ingress and retain adhesive properties over long-term exposure, ensuring a stable and durable seal throughout the product’s lifecycle.

The result is a ridge ventilation system that remains structurally sound, airflow-efficient, and aesthetically intact over years of performance.

Ridge ventilation components are made from various substrates, including:

• Nonwoven fabrics (polypropylene, polyester)
• Aluminum foils
• Bituminous membranes
• PE or PP films
• Foam-based sealing layers

The TECHNOMELT^® range provides excellent adhesion across all these materials, enabling multi-layer bonding and lamination without surface pre-treatment. This universal compatibility supports greater design freedom for manufacturers, allowing them to develop innovative ventilation products without compromising bond strength or production efficiency.

Sustainability is a defining factor in building material manufacturing — and ridge vent roll adhesives are no exception. TECHNOMELT^® solutions contribute to more sustainable production in several ways:

Reduced Energy Consumption:

TECHNOMELT^® hotmelts can be processed at lower temperatures, minimizing energy demand during application.

Cleaner Production:

Solvent-free, low-odor formulations improve workplace conditions, support operator safety, and reduce environmental emissions (zero VOC).

Minimized Waste:

Fast setting times and clean application reduce product rejects and adhesive overuse, supporting lean manufacturing principles.

Longer Product Lifespan:

The durability of TECHNOMELT^® adhesives helps extend the life of roofing components, reducing the need for replacement and lowering material consumption over time.

By integrating TECHNOMELT^® into production, manufacturers not only ensure strong and reliable product performance, but also contribute to the broader goals of sustainable construction and energy efficiency.

TECHNOMELT^® adhesives are a trusted choice in construction materials, recognized for consistent performance, global support, and deep technical expertise. When it comes to ridge ventilation rolls, the benefits are clear:

Tailored adhesive chemistry:

Each formulation is engineered to deliver optimal tack, open time, and bond strength for roofing applications.

Proven industrial performance:

Backed by real-world testing and extensive manufacturing experience across Europe’s leading roof component producers.

Comprehensive technical support:

Henkel provides application engineering, testing services, and process optimization support to ensure seamless integration into production lines.

Global availability and reliability:

With Henkel’s worldwide supply network, manufacturers benefit from consistent quality, short lead times, and dependable logistics.

Choosing TECHNOMELT^® means choosing a partner in innovation and quality — one that helps you achieve greater productivity, lower production costs, and superior end-product performance.

Henkel’s mission is to redefine bonding performance across every application area in the building industry. Our experts collaborate with roof component manufacturers to optimize adhesive formulations, improve production processes, and develop next-generation roofing materials that meet the evolving demands of modern construction.

From initial product design to line integration and quality assurance, Henkel provides end-to-end partnership — ensuring that every ridge ventilation roll bonded with TECHNOMELT^® meets the highest standards of reliability, efficiency, and sustainability.