MRGNB Specification Manual
The Master Roofers Guarantee Corporation (or “MRGNB”) is set apart from other roofing organizations via the standards set forth in it’s specification manual, which, when adhered to results in a start of the art product. A roof constructed by a member of the MRGNB can be regarded as a “high end” product, one what will meet and often exceed customer expectations. In the roofing industry, this is referred to as a roof that performs.
Latest Version: 2.l 2014