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.

Torch Down Roofing

The most frequently used type of materials for flat roofs are constructed using torch down roofing materials.  Torch down roofing gets its name from the method by which it is applied.  These roofing techniques are installed in sheets that overlap each other, and the area that overlaps is then heated with a torch so they bond together.

The materials used in most torch down roofing applications are also known as rubberized asphalt.  The melting of this overlapping bitumen by torching them together makes a very durable and highly resistant roof, which gives most torch down roofs an average duration of around 20 years.

The reason a large number of flat roofs are done with torch down roofing materials has to do with rubberized technologies that make them highly beneficial for flat roofs that might assemble water in some spots.  Older buildings might have drainage problems that cause small puddles to form, but with rubberized torch down roofing materials these puddles will dry in the exterior of the building, very than drain through to the interior.  Though this highly water-resistant material might cost a small more than some other methods, it is still regarded as the best type of roofing material for flat roofs that might not drain as rapidly as other types of commercial roofs.

A further fantastic subsidy to torch down roofing materials is their ease of installation.  There are no noxious fumes and other environmental hazards that the installer has to contend with.  The torching process only releases a small amount of odor when the torch heats the surface, causing the two layers to bond together.

As with any type of roof construction, it is wise to consult a professional when considering which type of roofing material to use.  There are several different types of torch down roofing materials, and a professional can guide you to the best one for a particular use.

Spray Foam Roofing

A common type of commercial roofing technique is spray foam roofing.  The use of spray foam roofing has many benefits that go far beyond just shedding water.  The most common reasons this type of roofing has become so well loved has to do with the material’s lightweight and durable nature.

What makes spray foam roofing a excellent choice for most types of commercial buildings is its ease of application.  This type of roof material is applied as a liquid that is sprayed onto the surface of the roof sub-decking and then expands to thirty times its thickness in liquid form.  The foam then hardens to form a hard cell monolithic roofing compound.  Because spray foam roofing is liquid when it is applied, it fills holes and cracks as it expands to make a unassailable seal.  Because spray foam roofing is lightweight, it is commonly used in most types of commercial roofing repairs.

After a spray foam roof has been applied to proper specification, the roofing contractor will then place an bonus surface over the hardened foam.  This surface is typically a layer of elastomeric coating of gravel that can be walked on for normal maintenance.

Most types of spray foam roofing are Energy Star compliant, meaning they have the added subsidy of cold utility expenditure.  For a roofing material to get an Energy Star rating, the material has to help prevent heat from radiating into the interior of the building.  By reflecting heat out of the building, Energy Star compliant roofing materials can help to lower utility cost by up 50%.

The use of spray foam roofing materials requires different procedures depending on diverse types of roofing substructures.  To ensure that someone gets the best job for their money they need to make sure they follow all application techniques that are required for a particular type of spray foam roofing.

Hot Asphalt Roofing

Hot Asphalt Built-up roofing is extremely durable and has been used for more than 100 years. BUR is one of the oldest and most dependable ways of installing a new roof. BUR consists of multiple asphalt plies of laminated roofing felts together with asphalt bitumen.

BUR roofing systems are composed of three vital components; (1) The waterproofing component (asphalt, bitumen, or cold adhesive), (2) The reinforcing component, (fiberglass, polyester, or other fabrics), and (3) The surfacing component (granular-surfaced cap sheet or gravel) which is used to protect and preserve the other components from roof-destroying elements such as Ultra Violet, mechanical failure, and wear and tear.

BUR offers the added safeguard of White Cool Roof Coatings and performs well in extremes of heat, cold, wind, and snow.  BUR is simple to repair and has a proven track record.

Cold Applied Roofing

In the early 1900s, the use of cold applied roofing was nearly to no avail of, because the widely used materials for commercial roofs were heat based.  As new polymers were developed, cold applied roofing started to gain popularity.

Heat applied roofing materials had an inherit downside.  These types of materials needed to be heated to 500 degrees in kettles before they could be applied.  The use of open fires and other work site dangers prompted the industry to find better techniques for roofing construction.  With advances in polymers and adhesives, cold applied roofing techniques became more widely used for a majority of commercial projects.

Within the last thirty years, cold applied roofing techniques have become the mainstay.  By eliminating the use of super-heated tars, job safety-the main reason for the shift-was improved.  The use of such materials allowed contractors to ensure a safer job site and avoid worker injuries that were common in the use of super-heated tars on roofs.

With the use of new asphalt chemistry technologies, cold applied roofing materials are now one of the most extensively used varieties of roofing materials.  Cold process materials are now currently available in all kinds of grades and mixtures.

On the low-cost end of such roofing materials, most are made with specially designed tars and polymer which are fused together to harden as they dry.  The high-end cold applied roofing materials have added compounds and rubberizing chemicals to help the roof flex while still protecting the building from leaks.  The older varieties would dry solid and lacking give, causing them to crack after several years.

Those considering a low cost and safe way to apply roofing material should look into using cold applied roofing materials if they have either a modified bitumen membrane system or a traditional, built-up roof.

Cool Roof Coatings

The application of cool roof coatings in Southern California and the greater Los Angeles area is a growth industry.  Rising utility expenditure and a shift to more sustainable, green technologies has lead many consumers to use cool roof coatings to lower expenses.

Most cool roof coatings are Energy Star compliant, which means they have gone through extensive testing to get a certification from the centralized government that rates these products as energy-saving materials.  In most cases, these products use a combination of insulation factors and solar reflection.  By reflecting the sun’s energy away from the interior of the building, utility expenditure can be cut by as much as 50%.

Applying cool roof coatings is a lot like spray painting the roof of a building.  The roofing company would prep the existing roof to make sure that there are no leaks or issues with the existing roof.  After that, the coating is sprayed onto the surface of the roof and allowed to dry.  Once applied, the new coating not only reflects solar energy, it also extends that life of the existing roof.

With most cool roof coatings being Energy Star compliant, there are several different types of tax credit available to help with the cost of installation.  These tax credits are offered by centralized, state, and local governments to help cut energy use and the environmental impact of excessive energy consumption.  It is advised that anyone considering the use of cool roof coatings should speak with a tax specialist to determine which credit can be utilized for a particular application.

In the greater Southern California area, there are numerous building codes that need to be followed when applying any type of spray-on roof coating.  These codes need to be addressed before choosing which roof coating to use.

TPO Thermoplastic Polyolefin Membrane

Thermoplastic Polyolefin TPO is one of the fastest growing release ply flat roofing materials on the market in California in accordance with California Title 24 Cool Roof Mandate.  TPO is fire and chemical resistant and contains ultraviolet UV inhibitors that reflect in this area 85% – 87% of UV rays.  TPO can be used for both mechanically fastened and fully adhered roof applications for projects that are new construction, re-roof, and or re-cover roof installations.  The Thermoplastic Polyolefin TPO membrane is reinforced with a polyester fabric and manufactured using an ultraviolet-resistant thermoplastic polyolefin formulation.

TPO is lightweight, available in multiple colors suitable for all types of projects.

PVC Thermoplastic Membrane

PVC Thermoplastic roofing membranes are engineered to be highly flexible and manufactured using an ultraviolet resistant polyvinyl chloride PVC formulation.  PVC roofing systems meet California Title 24 Cool Roof Energy Standards and result in cleaner, quicker, and cost efficient installations able to withstand the elements of wind, rain, contaminants, and heat.  PVC can be used for both mechanically fastened and fully adhered roof applications for projects that are new construction, re-roof, and or recover roof installations.

PVC Solar Roofing Photovoltaic Panels can be heat welded directly to the finished PVC roofing system and convert sunlight into electricity.

PVC is lightweight, available in multiple colors suitable for all types of projects.