GB18242-2008 Standard Torch Down Roofing Membrane Good Chemical Resistance

Torch Down Roofing Membrane SBS Modified Bitumen Rolled Sheet

Product Description:

Torch down roofing system uses traditional modified bitumen membrane as waterproofing layer. A modified bitumen membrane is composed of polymer-modified bitumen reinforced with one or more plies of fabric such as polyester, fiberglass, or a combination of both. Factory surfacing, if applied, includes black PE film, mineral granules, aluminum, colored sand,etc.

Modified bitumen's generally use a traditional waterproofing medium-asphalt-modified with styrene butadiene styrene (SBS), synthetic rubber, or other agents that will enhance the asphalt properties. SBS is the most common bitumen modifier.

Advantage of SBS modifier:

SBS modifies the asphalt by forming a polymer network within the bitumen, SBS gives the bitumen rubber-like characteristics and improved resistance to aging and weathering. Most SBS modified bitumen sheets are either set in hot mopping asphalt, torch-applied, or adhered with cold-process adhesives. 

Uses:

It can be used as a waterproofing membrane on:

1.Flat roofs

2.Foundations and basements

3.Planter boxes, terraces and balconies

4.Water and waste water tanks

5.Tunnels

It can be applied in single application or in multi layer application.

Advantages:

1.Uniform thickness, no tolerance.

2.Easily installed using flame torch methods

3.Excellent stability when exposed to stresses such as movement and temperature extremes

4.Reinforcement allows the sheet to be flexible, durable, and resistant to heat, aging and puncture

5.Good chemical resistance

6.Excellent waterproofing capabilities