Monthly Archives: December 2012

Metal and Coatings Are Important: But the Paintline and the People Who Run It Will Make the Difference

Everyone always talks about the quality of their aluminum and steel in metal construction and the importance of using a high end coating.

But very rarely do you hear anyone talk about a third key element in the manufacture of a quality metal roofing or wall product—the paint line on which it is made. Virtually every aspect of a paint line plays a critical role in the final quality of the product. Following is a quick visit to a modern paint line with a look at why a state of the art manufacturing operation is critical to the production of a superior product and to the economies of cost in producing it.

Paint line systems built within the past few years are environmentally superior. They capture 100 percent of solvent fumes from painting, drying and curing operations and recover virtually all of the heat from the burning solvent for return to the process in an ultra-clean system.Metal coil paintline.

Newer paint lines have systems  that can heat their ovens and metal cleaning and pretreatment operations with no cost, saving  a substantial amount of energy which otherwise would have to be built into the cost of the product. Their environmental systems burners destroy volatile organic compounds (VOCs) and solvents in their incinerator. The heat from there is passed through for heating ovens and the boiler which creates steam heat for the cleaner and rinse tanks. Then fresh air from the coater rooms is passed through the heat exchanger and into the incinerator to be burned to complete the loop. Any excess heat is then pumped out through the stack.

Modern paint lines have an oven and incinerator with one burner along the entire line, producing the highest grade of painted metal possible. Oven heat in these modern systems is better balanced internally to give a better product with color that is uniform across the entire roll. Samples of whites produced in older, multiple-burner manufacturing systems can have a yellow cast across the width of the strip because the heat is stronger on one side of the burner than the other. The new systems set the highest standard in the industry for quality, color and consistency. Continue reading

NJ STATE MANDATE TO OUTSIDE CONTRACTORS: BE REGISTERED FOR STATE FUNDED CLEANUP WORK OR YOU WON’T BE PAID

If you are an out of state contractor looking to do state-funded construction services related to Hurricane Sandy in New Jersey, then you must be registered with the New Jersey Division of Consumer Affairs.

If you don’t register, you won’t be paid.

To be considered for qualification, out of state contractors must pay a $90 fee to register, provide a certificate of incorporation or LLC as well as a certificate of commercial general liability insurance in the amount of $500 “per occurrence”.

You can get a registration application by going to https://www.njconsumeraffairs.gov/HIC/hicpacket.pdf.

Foreign corporations wishing to do business must get a certificate of authority from the N.J. Department of Revenue.

Out of state contractors who do qualify must display their registration number in their place of business, in all commercial vehicles and on all documents, contracts and correspondence involving state-funded work in New Jersey.

For more information , contact your Englert representative.

Metal Roofing Contractors Can Avoid Cinching AKA Friction Scratches With These Simple Rollforming Tips

Cinching, sometimes also referred to as “friction scratches” or “pickoff,” is the result of the movement or slipping of painted coil laps against each other on a rollforming machine.

This phenomenon can be frustrating to metal roofing contractors because it causes the removal of paint in the shape of small or medium sized scratches on metal roofing coil formed in the same direction of the slipping or movement of the coil laps.

Some clear signs that cinching is the cause of these short longitudinal scratches are:
•    Worn or broken pieces on the spools, idler rolls and guides,
•    Gaps or air spaces between sections of the laps of the coil
•    The ability to move the laps of coil with hand pressure, a sure sign that coil has unraveled.

Cinched metal roofing panel.The vast majority of cinching incidents are caused by improper brake pressure on the un-coiler spool or the expandable arbor brake on the rollforming machine.  For portable roll formers, the improper brake pressure on the un-coiler spool is by far the source of most cinching. And new machine operators not familiar with the use of the brake or trained incorrectly are responsible for most of the problems.

To avoid cinching, the rollforming machine operator must make sure there is proper tension to allow the coil to uncoil without tightening the laps or without loosening the coil so it does not unravel. If either of these actions occurs, the laps will rub against each other and cause cinching. Continue reading

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