Bitumen cap sheet
What is Bitumen Cap Sheet?
At Basekim, we understand the critical role that roofing materials play in ensuring the integrity of your building. Therefore, bitumen cap sheets are essential for any roofing system, particularly for low-pitched roofs such as built-up roofs (BUR) and modified bitumen roofs. Essentially, a bitumen cap sheet consists of a top layer of bituminous felt glued to an underlying middle layer. Additionally, it often features a protective cover made of foil chips and reinforced fibers, which enhances its durability and effectiveness.
Why Choose Bitumen Cap Sheets?
When considering the challenges posed by constant exposure to wind and weather, the necessity of a cap sheet becomes clear. Over time, BUR roofs can become brittle and crack. Consequently, water can seep into these cracks, leading to potential damage inside the building. By using a cap sheet, you effectively cover and protect the layers beneath it. Moreover, this protective layer increases the lifespan of the roof, making it a smart investment for any property owner.
Description of Cap Sheet
Bitumen cap sheets consist of several layers of materials. These include asphalt or fiberglass layers coated with bitumen. Furthermore, manufacturers often treat the surface with mineral granules, which enhance strength and durability. As a result, this roofing material is relatively heavy. Indeed, it is commonly referred to as a 90-pound roof due to its approximate weight per standard square. However, advancements in technology have led to lighter products, many of which weigh around 72 pounds.
Additionally, the effectiveness of a roof in resisting leaks significantly improves with the number of layers and cover sheets applied. Thus, opting for a bitumen cap sheet not only enhances your roof’s performance but also contributes to its longevity.
Methods of Applying Cap Sheet to the Roof
Several methods exist for applying cap sheets to roofs, ensuring a secure and effective installation. First and foremost, thermal welding connects the sheets to each other and to the roof below. This method creates a strong bond that withstands various weather conditions. Secondly, contractors often apply cement or asphalt between the layers, effectively holding everything together. Lastly, depending on wind levels, some professional roofers use a layer of sand on top. This practice helps to reduce the weight of the product while simultaneously enhancing its performance.
Why is Bitumen Used in Roofing?
Bitumen, often referred to as asphalt, is a sticky, black, and highly viscous liquid or semi-solid form of petroleum. Its waterproofing qualities make it an ideal choice for construction. In fact, bituminous membranes excel at waterproofing roofs, basements, below-ground structures, bridges, and other essential applications. Thus, its versatility and reliability further establish bitumen as a go-to material in the industry.
What is the Difference Between Bitumen Cap Sheet and Base Sheet?
It is essential to understand the differences between the base sheet and the cap sheet in roofing systems. The base sheet provides waterproofing and serves as a top surface that bonds with the cap sheet. In contrast, the cap sheet offers added benefits such as color, fire protection, UV radiation resistance, and durability against mechanical abuse. Importantly, the base sheet and cap sheet must work together effectively to create a robust roofing system.
Conclusion
In summary, bitumen cap sheets are vital components of roofing systems, offering exceptional waterproofing and protection against the elements. At Basekim, we are committed to providing high-quality bitumen cap sheets that ensure the longevity and reliability of your roofing projects. Therefore, by choosing our products, you invest in the safety and durability of your building.
To learn more about our bitumen cap sheets and how they can enhance your next construction project, contact us today. At Basekim, we’re here to support you every step of the way!