Rainscreen cladding systems

Types of Rainscreen Cladding Systems

There are two main types of rainscreen cladding systems: ventilated and drained. Each type has unique characteristics and components that serve different functions in the building envelope.

• Ventilated Rainscreen Cladding

  This type of cladding is designed to allow air circulation between the outer wall and the inner wall. The air circulation helps to regulate temperature and moisture levels, preventing the inner wall from getting too wet or warm. This ventilated system is essential for energy efficiency because it reduces the need for extra heating or cooling. It's also vital for protecting the structure from dampness, which can cause rot or mold. The airflow is made possible by small gaps left between the cladding and the wall. These gaps are usually not seen. They are hidden by the external cladding. The ventilated system is often used in places where the climate is not too rainy or humid. This is because it relies on airflow to work well.

• Drained Rainscreen Cladding

  This type of cladding relies on gravity and drainage to move water away from the building. It has a more robust design than the ventilated system. The cladding is often made of stone or concrete. Behind the cladding, there are drainage channels and pipes. These pipes collect any water that manages to get past the outer cladding wall. They then direct it down to the ground and away from the building. Like the ventilated system, the Drained Rainscreen also has spaces between the cladding and the wall. But these gaps are more significant so water can't get trapped. Instead, it flows freely towards the drainage pipes. This system is beneficial in very rainy or snowy areas. It ensures water is continually moved away from the walls, preventing dampness and related problems. Without adequate drainage, the water could cause severe damage to the building's structure over time.

Function and Feature of Rainscreen Cladding Systems

Rainscreen cladding systems fulfill a variety of functions critical to the performance, durability, and sustainability of buildings. Here are some key functions:

• Moisture Management

  The primary purpose of a rainscreen cladding system is to control water. The outer layer (the rainscreen) slows down the rain that hits the building, giving the inner layers time to dry. This reduces moisture problems like mold and protects materials. The system creates a gap between the exterior cladding and the building's sheathing. This space allows any water that gets through to drain and circulate air. The drainage and airflow help the moisture evaporate completely, preventing rot and damage.

• Thermal Regulation

  Another important function is thermal control. Rainscreen systems insulate the building and reduce heat transfer. This keeps interiors comfortable without using as much energy. The insulation combined with reduced heat loss leads to significant energy savings over time.

• Ventilation

  The gap in a rainscreen system is also crucial for airflow. It is not completely sealed. This ventilation reduces humidity and stops condensation from forming inside walls. Proper air circulation regulates temperatures and improves the overall climate of the building.

• Deflection of Water

  The cladding itself needs to be designed to direct water down and away from the building. It must have overhangs, ledges, and other features that ensure any water that hits the exterior walls travels off rather than seeping in.

• Air and Water Barrier

  A key component behind the cladding is a strong air and water barrier. Materials like sheathing boards or membranes are installed to provide a solid defense against wind, rain, and humidity trying to enter the walls. This barrier protects the inner parts of the structure.

• Materials Longevity

  By controlling moisture and temperature, rainscreen systems extend the lifespan of building materials. They prevent rot, reduce thermal expansion and contraction that can cause cracks, and slow down deterioration from heat, sun, and storms. This longevity means fewer repairs are needed over time.

• Fire Safety

  Some cladding materials provide important fire protection. For example, metal or brick exterior surfaces are much less likely to allow flames to travel up the walls compared to uncoated wood. The right choice of cladding can help prevent fire from spreading.

• Noise Reduction

  Rainscreen systems can also block out sounds from outside. The thick walls, along with the air gap, dampen noises like traffic or planes. This makes interiors more peaceful.

Scenarios of Rainscreen Cladding Systems

Rainscreen cladding systems are applied in various industries and sectors. Here are some of the common application scenarios:

• Residential Construction

  Rainscreen cladding systems are widely used in residential buildings such as houses, apartments and condominiums. They offer an appealing aesthetic appearance that enhances architectural design. The cladding systems also provide vital features that improve the functionality and comfortability of residential spaces.

• Commercial Buildings

  Office buildings, retail stores, hotels and restaurants often use cladding systems. The systems give these buildings an attractive appearance and energy efficiency. The cladding systems also provide insulation and noise reduction, creating a conducive environment for occupants.

• Educational Institutions

  Schools, colleges and universities use cladding systems to create a comfortable and quiet learning environment for students and staff. The systems are also durable, requiring minimal maintenance and reducing long-term operational costs.

• Healthcare Facilities

  Hospitals, clinics and nursing homes use rainscreen cladding systems to create a clean and safe environment for patients, staff and visitors. The systems are crucial in ensuring proper energy efficiency, temperature control and noise attenuation in healthcare settings.

• Industrial Facilities

  Manufacturing plants, warehouses and distribution centers use cladding systems for practical and energy-efficient solutions. The systems offer insulation, weather protection and a long-lasting surface that needs minimal maintenance.

• Public Infrastructure

  Government buildings, libraries, museums and community centers often use rainscreen cladding systems. The cladding systems provide a blend of functionality, aesthetics and durability. This ensures the public infrastructure remains appealing and requires minimal maintenance over time.

• Hospitality Industry

  Convention centers, event spaces, resorts and entertainment venues use cladding systems. The systems enhance the underlying infrastructure. This ensures the hospitality space remains appealing and minimizes long-term operational costs.

• High-Rise Construction

  Skyscrapers and tall buildings use rainscreen cladding systems. The systems protect the building from extreme weather elements. They also offer insulation, reducing energy costs. Additionally, the cladding systems improve the aesthetic appearance of the building.

• Cultural and Historical Buildings

  Rainscreen cladding systems are used in cladding historical and cultural buildings. The systems help preserve the building's integrity by protecting it from weather elements. They also improve the building's energy efficiency and reduce heat loss.

How to Choose Rainscreen Cladding Systems

Choosing the right systems requires careful consideration of several factors. Here are some of the factors that will need to be considered:

• Consider the climate

  The performance of the cladding systems is highly dependent on the environmental elements. Therefore, it is important to consider the climate when choosing a rainscreen cladding system. The selected systems should be able to withstand the local weather elements.

• Consider the building type and design

  The type and design of the building highly influences the choice of cladding systems. Different building designs have unique requirements. This includes functional, aesthetic, and structural requirements. For instance, a contemporary building design may require a metallic cladding system. On the other hand, a traditional building design may require a wooden cladding system. This is because the latter complements the overall appearance of the building.

• Consider the budget

  Cladding systems come with different prices. Some are more affordable than others. Additionally, they also differ in terms of maintenance costs. For this reason, it is important to consider the budget when choosing cladding systems. This ensures that an option is selected that is in line with the available funds.

• Consider the lifespan of the cladding systems

  The lifespan of different cladding systems also varies. For instance, wood cladding systems have a shorter lifespan compared to metal or brick cladding systems. As such, it is important to consider the lifespan of the cladding systems when choosing. This is to ensure that they offer optimal protection to the building for an extended period of time.

• Consider the level of maintenance required

  Different cladding systems require different levels of maintenance. For instance, wood cladding systems require regular sealing and painting. On the other hand, metal and brick cladding systems require minimal maintenance. As such, it is important to consider the level of maintenance when choosing cladding systems. This is because it ensures that an option is selected that is in line with the desired maintenance level.

rainscreen cladding systems Q&A

Q1. What are the benefits of a rainscreen?

A1. Rainscreens protect the inner walls from moisture and debris. They also improve thermal insulation and reduce noise. Plus, they offer design flexibility and require little maintenance.

Q2. How is a rainscreen different from regular cladding?

A2. Unlike regular cladding, a rainscreen creates a small gap between the outer and inner walls. This gap allows air circulation and prevents water from being trapped, protecting the inner walls from damage.

Q3. What materials are used for rainscreens?

A3. Rainscreens are often made of durable materials like aluminum, fiber cement, wood, and high-pressure laminate. These materials withstand weather and protect the building.

Q4. Can a rainscreen be installed on any building?

A4. Yes, a rainscreen can be installed on most buildings, including commercial and residential. It is suitable for different types of structures, regardless of size or design.

Q5. How much does a rainscreen system cost?

A5. The cost of a rainscreen system varies depending on factors like the type of material used, the size of the building, and the complexity of the installation. Rainscreen systems are available in various price ranges to suit different budgets and project requirements.