August 2, 2012

Modified Bitumen APP

The use of modified bitumen APP is very well loved with many contractors in Southern California, mainly because of its ease of installation and its adaptability.  Modified bitumen APP is considerably more sip resistant than similar types of roofing materials, as well as having added rigidity and superior resistance to wear.

The main downside to modified bitumen APP is its lack of flexibility in cold weather conditions.  This might not be an issue in some parts of Southern California, but it is an issue that needs to be addressed before committing to the use of modified bitumen APP.

A further downside to modified bitumen APP is its required use of open flame torch down installation.  There are dangers connected with the use of open flame propane torches for torch down roofs, and building owners should discuss these dangers with their contractors before work starts.

There are other options when installing modified bitumen APP, because there are now some manufacturers that are starting to adopt less perilous adhesives for installation.  These new adhesive options are becoming more well loved because of advances in adhesive technologies.

Modified bitumen APP is specially designed sheet material that uses a combination of glass fibers and polyester fibers as reinforcement; it is then covered with atactic polypropylene, or APP.  Atactic polypropylene is a very soft and chewy amorphous polymer that is very common in many different types of torch down roofing materials.

Though many modified bitumen APP roofing materials are considered U.V. resistant, it is highly recommend by many manufacturers that these roofs get added treatment for U.V. safeguard to prevent premature weathering.

Once installed, most modified bitumen APP offer some of the best long-term fire resistance of any other type of roofing material, mainly because of the integrated glass fibers used in the manufacturing.

Modified Bitumen SBS

The use of plastics in roofing materials has increased over the last few decades, and one of the more well loved types of plastics in roof materials is SBS.  SBS, or Styrene Butadiene Styrene, is a type of thermoplastic rubber that is used heavily in modified bitumen roofing materials.  The use of modified bitumen SBS has grown significantly since its commencement in the early eighties.

At first the use of modified bitumen SBS was limited, mainly because most commercial contractors felt that the instillation process involved in this type of roof was too burdensome.  Consumers saw a further downside to modified bitumen SBS, which was its unsightly appearance after instillation.  Most of these roofs were installed using mopped asphalt and heavy duty adhesives.  The black ooze that delineated the seams on these roofs were considered to be unattractive, but the safeguard offered by modified bitumen SBS has remained high.

With the advent of self-adhering modified bitumen SBS, the finished projects have been given a face lift.  The much-improved look of this material has caused many contractors to reconsider their previous notions in this area these roofing materials.  Thankfulness to this material, many contractors now believe that this type of material should be everyone’s number one choice in roofing materials.  Their ease of installation and the attractive finished look makes self-adhering modified bitumen SBS one of the best choices for flat commercial roofs in the greater Los Angeles area.

Whether someone chooses to use self-adhering modified bitumen SBS or traditional installation techniques, these roofing materials offer some fantastic impact safeguard over standard built-up roofing materials.  Because of the integrated use of thermoplastic rubbers in modified bitumen SBS, this type of material offers more flexibility and puncture resistance than most other types of commercial roofing materials.

Modified Bitumen Roofing

When choosing a roofing material, it is always a excellent thought to pick one with a proven track record.  Modified bitumen roofing materials have been around since the mid-’60s, but it took until the mid-’70s for its use to dominate the industry.  Now modified bitumen roofing materials are the most widely used on flat roof commercial buildings.

Modified bitumen roofing materials come with a variety of instillation specifications from torch down to cold applied processes.  The newest innovation in modified bitumen roofing materials is a self-adhering strip for installation.  The roofing materials are rolled out and stuck together with the self-adhering strip that does not require special tools or added labors.  Once the material is rolled out and the adhesive strip bonds with the substrate, the roof has all of the water safeguard qualities of the other methods of modified bitumen roofing instillation techniques.

The fantastic thing in this area modified bitumen roofing is the large assortment of material and surfacing options.  The two most commonly used materials are asphalt based, with one of them having a rubberized asphalt blend for increased flexibility.  Surface options include several different types of gravel coverings, as well as factory-applied cool roof coatings that are Energy Star compliant.

Some types of modified bitumen roofing with Energy Star compliant coatings have the added subsidy of saving a consumer up to 50% on their utility expenditure.  Modified bitumen roofing with cool roof coatings reflect solar heat away from the interior of the building to help cut the energy expenditure associated with the hot Southern California sun.

When considering modified bitumen roofing materials, many people in the greater Los Angeles area have managed to save thousands on their project when using Energy Star compliant materials.  And these savings are not just limited to utility expenditure; there are also several different tax credits available as well.