04/14/2024
Ice and water shield, also known as ice and water barrier, is a type of roofing underlayment used to provide additional protection against water infiltration in areas prone to ice dams and heavy rain. It is typically installed on the roof deck before the application of the primary roofing material, such as shingles or metal panels.
Ice and water shield is made of a rubberized asphalt compound that is highly adhesive and self-sealing. It comes in rolls and is applied in overlapping layers to create a watertight barrier along the eaves, valleys, and other vulnerable areas of the roof. The material is designed to adhere tightly to the roof deck and surrounding surfaces, effectively preventing water from seeping underneath and causing damage to the roof structure and interior of the building.
The primary function of ice and water shield is to protect against water infiltration caused by ice dams, which occur when snow on the roof melts and refreezes at the eaves, creating a barrier that prevents proper drainage. Ice and water shield provides an extra layer of defense against water backup, ensuring that any water that does pe*****te the primary roofing material is diverted away from the roof deck and safely directed to the gutters and downspouts.
In addition to ice dams, ice and water shield also provides protection against wind-driven rain, snow, and other forms of moisture intrusion. It is commonly used in regions with cold climates or areas prone to severe weather events to enhance the durability and longevity of the roof.
Overall, ice and water shield is an essential component of a properly installed roofing system, helping to safeguard homes and buildings against water damage and maintain their structural integrity over time