Building & Roofing Sealants

Types of Roofing & Building Sealants

Moisture is one of the biggest threats to any building or roofing structure. It can cause rot, mould, and structural damage, which can be costly to repair. 

Sealing gaps and joints with a high-quality sealant can offer many benefits such as preventing moisture from seeping into these areas, protecting the structure and extending its lifespan.

In addition to moisture, air infiltration is another common problem that can lead to higher energy costs and reduced indoor air quality. 

Sealants can help to create an airtight seal, preventing drafts and air leaks, which can result in significant energy savings and improved indoor air quality.

There are several types of building and roofing sealants, each specifically formulated for specific applications and substrates. Some common types of sealants are:

• Silicone sealants: Silicone sealant is an incredibly versatile liquid adhesive, with a gel-like consistency and unique chemical composition. Unlike other adhesives, it is extremely weather resistant, deeming it suitable for sealing joints and gaps in windows, doors, and other exterior components.
• Polyurethane sealants: Unparalleled in flexibility, polyurethane sealers are the ideal solution for sealing exterior surfaces. Whether it's wood, metal, plastic, masonry or aluminium that you need to safeguard against the elements - these non-toxic and flexible construction sealants will keep water out and ensure long-lasting resilience.
• Acrylic sealants: Acrylic sealant is a powerful sealing material, comprised of water-based acrylic resins. It brings charm to interior and exterior surfaces– with the added advantage of being paintable. Furthermore, it quickly cures after drying and provides protection from dust particles or invading pests on most common surfaces. 
• Butyl rubber sealants: Butyl sealant takes the cake for reliable joint sealing solutions. Impermeable to water and air, this solution provides a waterproof seal; a real game-changer when sealing and protecting roofs, drains, guttering and other exterior applications. Boasting outstanding water resistance, butyl rubber sealant hardens quickly while maintaining its elasticity. This resilience provides exceptional vibrational dampening and allows it to withstand fluctuating temperatures without compromising its strength or integrity.
  
  

Building and Roofing Sealants Applications

Building and roofing sealants are used for a variety of applications, including:

• Roofing: Roof sealant is used to seal gaps and joints in roofing structures, preventing water from infiltrating the roof and causing damage.
• Windows and doors: Sealants offer a reliable solution for sealing construction expansion joints and perimeter pointing windows and doors, preventing air and water from infiltrating the building.
• Concrete joints: Concrete sealants can either block pores in the surface to prevent absorption of water and other corrosive substances, or create an impenetrable barrier that impedes unwanted materials from entering. 
• HVAC systems: Sealants are used to seal joints in HVAC ducts and systems, preventing air leaks and improving energy efficiency.
  
  

Important Considerations When Selecting Building and Roofing Sealants

When selecting and using building and roofing sealants, it is important to consider several factors, such as:

• Substrate compatibility: Different sealants are designed for specific substrates, such as concrete, metal, wood, and plastic. It is important to select a sealant that is compatible with the substrate you are working with.
• Application method: Some sealants are designed for specific application methods, such as caulking guns, sprayers, or trowels. It is important to select a sealant that can be applied using the method you prefer.
• Environmental factors: Some sealants are designed for specific environmental conditions, such as high temperatures, humidity, or UV exposure. It is important to select a sealant that can withstand the environmental conditions in which it will be used. For roofing, it's important to select a sealant with excellent external weathering properties. 
• Cure time: Some sealants require longer cure times than others. It is important to select a sealant that allows enough time for the sealant to cure before it is exposed to water, air, or other elements.
• Maintenance requirements: Some sealants require regular maintenance or reapplication. It is important to select a sealant that requires minimal maintenance and has a long lifespan.