Flat Roof Systems

Low Slope/Flat Roof Systems

There are several types of roofing membranes that can be used on low slope roofs:

Thermoplastic Membranes:

This type of single ply membrane is based on plastic polymers and have seams that are either heat welded or chemical welded. This allows for seams that are as strong or stronger than the membrane itself.

PVC- Polyvinyl Chloride:

PVC is a popular roofing membrane that offers durability, flexibility, solar and heat reflection, and heat welded seams.

TPO- Thermoplastic Polyolefin:

TPO is another popular roofing membrane & is similar to PVC in its durability, strength, flexibility, solar & heat reflection, & heat welded seams.

Thermoset Membranes:

These membranes are made from polymeric materials that are chemically cross linked or vulcanized, or cured, and can only be bonded to similar materials by adhesives.

EPDM- Ethylene Propylene Diene Monomer: 

EPDM, also known as a rubber roof, is a membrane that can be mechanically attached, fully adhered, or loose laid with rock ballast. Laps are sealed using contact adhesive or seam tape.



Polymer-Modified Bitumen Membrane System:

​This type of system is composed of multiple layers, typical two ply, and usually fully adhered. There are two basic types of membrane to this system, either SBS or APP.

SBS- Styrene Butadiene Styrene:

This membrane can be installed with hot mopping of asphalt, cold adhesive, or have an adhesive back to allow the membrane to self adhere.

APP- Atactic Polypropylene:

APP is either torch-applied or heat-welded to an acceptable substrate.

Low Slope Metal Panel Roof Systems

Metal panel roof systems:

low slope metal roofMetal roofs are a very durable roofing system that can be installed over a continuous deck that ​provides support or can span between supports.

Built Up Roof (BUR) Membrane Systems

Built Up Roof:

built up roofAlso known as tar and gravel roofs, this system consist of ​alternating layers of bitumen and membrane, that can be ​installed by hot tar or asphalt or by cold process adhesive. The surface is typically topped with aggregate, cap sheet, mopped asphalt, or coating.

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