9 Brothers Building Supply provides a complete selection of Monarch foundation vents making the purchasing experience easy and efficient. We offer a variety of Monarch foundation vents, egress windows, wells, covers and accessories that are system integrated for custom installations. We turn new and existing basements into beautiful warm living areas enhanced with natural sunlight. Monarch’s products are Energy Star® certified and meet the IRC egress codes.
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Pour in place system Available in nominal and full wall widths Available with two vent insert options: Manually operated, easy to open vinyl vent insert – opens from outside Thermostatically controlled vinyl vent insert – vent automatically opens at 70° F and closes at 40° F.
System available in a variety of wall widths – easily installed in poured concrete or concrete block walls without modification Welded frame for maximum structural strength and rigidity Vent opens and closes with ease, allowing ventilation in any season Insert constructed aluminum with aluminum screen
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