Phase Change Materials Empower Green Buildings – Coolinno Leads a New Era of Temperature-Regulating Building Materials

Against the global backdrop of advancing carbon peak/neutrality goals and building energy efficiency, enabling buildings to possess inherent "smart temperature regulation" capabilities has become a key industry focus. Leveraging cutting-edge materials science, Coolinno has successfully innovatively applied Phase Change Materials (PCMs), cooling coatings, and cooling films in new building materials, establishing a comprehensive building thermal management solution ranging from thermal storage and regulation to radiative cooling. This provides a crucial impetus, particularly for the adoption and performance enhancement of passive houses.

Three Core Technologies Building a New Foundation for Building Thermal Comfort

I. Phase Change Materials (PCMs) – Thermal Sponges for Peak Shaving and Valley Filling

PCMs can change their physical state within a specific temperature range, absorbing or releasing significant amounts of latent heat during this process. Simply put, they act like a "thermal sponge": when indoor temperatures are too high, the material melts and absorbs heat, actively lowering the room temperature; when temperatures are too low, the material solidifies and releases heat, slowing heat loss. This characteristic makes them ideal for enhancing a building's thermal inertia and reducing air conditioning energy consumption.

II. Cooling Coating – Passive Cooling Without Energy Consumption

Coolinno's cooling coating utilizes a specialized polymer and nano-ceramic composite technology, achieving a very high solar reflectance (≥0.92) and atmospheric window infrared emissivity (≥0.90). When applied to building roofs or exterior walls, it reflects most solar radiant heat directly back into space. Even under the scorching summer sun, the external surface temperature can be 15–25°C lower than traditional dark-colored coatings, with corresponding indoor temperature reductions of 3–6°C. This entire process requires no energy input, making it a true form of "passive cooling."

III. Cooling Film – High Visible Transmission with Precise Temperature Control

For glass curtain walls, skylights, and existing building windows, Coolinno offers high-performance cooling films. Through a multi-layer nano-optical structure design, these films maintain high visible light transmittance (≥70%) while blocking over 85% of near-infrared heat radiation. In summer, they effectively prevent solar heat from entering the interior; in winter, they help reduce indoor heat loss, achieving a "warm in winter, cool in summer" effect. Used in conjunction with cooling coatings, they provide comprehensive thermal protection for both transparent and opaque parts of the building envelope.

Why Does Passive House Need Coolinno's Thermal Management Solutions?

The core design philosophy of a Passive House is to minimize the need for active heating and cooling through high air tightness, high-performance insulation, and heat recovery ventilation systems. However, in scenarios with large day-night temperature differences in summer or unstable intermittent heat sources in winter, relying solely on insulation often fails to maintain 24/7 thermal comfort.

Coolinno's three product categories address this shortcoming from different dimensions:

PCMs: Upgrade passive houses from "delaying heat transfer" to "actively storing and releasing heat," mitigating summer overheating and stabilizing winter room temperatures.

Cooling Coating: Addresses overheating issues on roofs and exterior walls, significantly reducing heat gain through opaque building envelopes and decreasing the passive house's reliance on active cooling systems.

Cooling Film: For passive houses with large glass areas (e.g., sunrooms, floor-to-ceiling window designs), it drastically reduces solar heat gain without sacrificing natural lighting, preventing the "greenhouse effect" in summer.

Using all three together can achieve purely passive temperature control for the vast majority of the year in temperate climate zones, further reducing or even eliminating the need for traditional air conditioning equipment.

Core Advantages of Coolinno Products

1、High Energy Efficiency, Reduced Operating Costs

2、PCM Building Materials: 3–5 times increase in thermal storage capacity, 4–6°C reduction in indoor temperature fluctuations, 15%–25% overall energy savings.

3、Cooling Coating: 15–25°C reduction in external surface temperature, 3–6°C reduction in indoor temperature, 20%–30% reduction in air conditioning load.

4、Cooling Film: ≥85% infrared blocking rate, 10%–20% reduction in summer air conditioning energy consumption, with no metal coating so it does not interfere with 5G/signal transmission.

Enhanced Living Comfort, Peak Shaving and Valley Filling

Whether through the charge/discharge regulation of PCMs or the direct insulation of cooling coatings and films, Coolinno's solutions stabilize indoor temperatures within the most comfortable human range (20–26°C), avoiding temperature overshoot and uneven heating/cooling. Particularly suitable for passive houses, office buildings, schools, and medical buildings pursuing ultimate comfort and low energy consumption.

Strong Compatibility, Easy Construction

PCM Building Materials: PCM gypsum boards, PCM mortars, PCM thermal storage floors, etc., highly compatible with existing construction techniques.

Cooling Coating: Can be directly rolled or sprayed onto various substrates like concrete, metal, asphalt shingles; no need to remove the original roof during renovation projects.

Cooling Film: Uses pressure-sensitive adhesive application for fast installation; can be applied to flat or curved glass, supporting energy-efficient retrofitting of existing buildings.

Regarding the strict air tightness and continuous insulation layer requirements of passive houses, Coolinno provides full-process technical support from material selection to thermal simulation analysis, ensuring solution implementation without compromising the original structural design.

Typical Application Scenarios

Passive Houses & Near-Zero Energy Buildings: Combined application of PCMs + cooling coating + cooling film to minimize reliance on active systems.

Large Factories & Warehouses: Cooling coating significantly reduces the temperature of color-coated steel sheet roofs, improving working conditions.

Office Buildings with Glass Curtain Walls: Cooling film achieves efficient heat insulation without affecting the facade's appearance.

Data Centers & Server Rooms: PCMs absorb intermittent heat dissipation; cooling film assists with window heat insulation treatment.

Agricultural Greenhouses & Ecological Farming: Cooling coating and film work together to control internal temperature rise, reducing ventilation energy consumption.

Emergency & Temporary Buildings: Maintain basic thermal comfort without active temperature control.

Why Choose Coolinno?

As a high-tech enterprise focused on R&D of functional building materials, Coolinno possesses complete PCM encapsulation production lines, automated water-based cooling coating production lines, and precision optical film coating capabilities. We have established thermophysical property testing laboratories in collaboration with universities. Every batch of products undergoes rigorous performance validation: PCM cycle stability exceeds 10,000 cycles without degradation; cooling coating reflectance decreases by no more than 5% after 2,000 hours of accelerated aging testing; cooling film weather resistance meets GB/T 24233 standards.

Currently, Coolinno's product series has obtained green building material certifications and has been included in multiple regional building energy efficiency recommendation catalogs. We are particularly adept at providing customized thermal management solutions for passive house projects—recommending optimal product combinations and application techniques based on local climate, building orientation, window-to-wall ratio, and usage patterns, truly achieving a "tailored solution for each house."

From material supply to energy savings estimation, Coolinno is committed to providing customers with quantifiable, traceable low-carbon building solutions.

Partner with Coolinno to Build a Thermally Stable Future

A building should not just be a shell providing shelter from wind and rain, but an intelligent living being that actively adapts to its environment. Whether for passive houses pursuing ultimate energy efficiency or for ordinary buildings seeking to reduce operating costs, Coolinno brings cutting-edge thermal management technologies from the laboratory to the construction site, making "passive temperature control" easily attainable.

If you are looking for new building materials that can effectively reduce energy consumption and improve quality, please contact us to obtain technical white papers, product brochures, and typical project case studies.

Coolinno – Defining Building Comfort Boundaries with Technology.