When building exterior walls, it is important to use an effective rainscreen system that will provide a means for drainage and ventilation. Moisture finds its way into wall systems through cracked mortar joints, gaps, or cracks in the materials surface. Once this occurs, it becomes trapped in the wall system with no way to escape, creating the perfect environment for mould growth and possible structural failure. Mortairvent® is a drainage and ventilation system specifically designed for use with most exterior siding materials.
Some its features include:
• 95 per cent open design creates a continuous capillary break and channel for moisture to drain and accelerates drying of the exterior cladding;
• durable polymer material is resistant to most of the known corrosive chemicals and helps reduce the risk of mould or mildew;
• minimizes staining, peeling, and blistering of exterior finishes;
• contributes to credits under the Leadership in Energy and Environmental Design (LEED) rating program;
• easy installation, and more cost-effective than traditional furring strip methods;
• two-ply design features a backer fabric that improves the tensile and compressive strength properties of the rainscreen (the fabric also serves to deflect mortar when used with stucco or a masonry veneer siding); and
• integrated insect screen.

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