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Cost Analysis

 
BUR (Built Up Roofing) is composed of several layers of bitumen asphalt infused into fiberglass mats and is finished up with an aggregate layer or coating. It is one of the oldest and most reliable ways of installing a new roof.

Cost: $$$$$
Durability: ****
Lifespan: 15-20 years

EPDM (Ethylene Propylene Diene Monometer) has been in use on roofs in the USA since the 1960’s and is one of the most common types of flow-slope roofing materials. This is because it is relatively inexpensive, simple to install, and clean to work with when compared to conventional built-up roofs.

Cost: $$$ – $$$$
Durability: ****
Lifespan: 15-20 years

TPO (Thermoplastic Polyolefin) is a single-ply membrane. It is designed to combine the durability of EPDM rubber with the proven performance of hot-air weld able seams. It has been tested as having excellent resistance to ozone, algae-resistant, environmentally friendly, and safe to install.

Cost: $$$ – $$$$
Durability: ****
Lifespan: 15-20 years

Modified Bitumen (MB) is asphalt that has added modifiers to give it plastic or rubber-like properties. The most common type of modifiers being used are APP (Atactic Polypropylene) and SBS (Styrene Butadiene Styrene).

Cost: $$$$$
Durability: ****
Lifespan: 15-20 years

As a potential addition to all roof systems, tapered roof insulation is a time-tested method with a dual purpose: to drain and insulate dead-level roof decks. Tapered roof insulation is a proven value-engineered system used throughout the country to increase life spans of all roof types.

Cost: Minimal additional cost
Durability: Varies by roof type
Lifespan: Varies by roof type