Slate Roof Repair Restoration Copper Pole & Yankee Gutter Expert Chimney Flashings NJ Pa

Roofing Contractor Monmouth County NJ
  
                                     
                                     
                                     

The Metal Lined “Open Valley”

    
The mainstay for watershed intersections on steep sloped roofing for centuries, the metal lined valley has proven itself to be the best flashing system for these roof transitions. When natural materials are employed, such as Slate and Wood Shingle, the intersecting Valleys are usually lined in an open and visible metal. Consideration for the harmful effects by reaction to the roofing product, or the elements of the immediate environment must be considered.
For instance, Terne Coated Tin, or Steel (of the last century and a half) was often employed as valley linings and flashings in areas where anthracite coal usage was the main energy source of heating. The soot, heavily laden with sulfur from the chimneys, would degrade the copper roof flashings rather rapidly in urban areas.
Whether it is the replacement of old Terne Flashings on an old, yet viable Slate Roof (Such as Vermont Slate, or even a viable Pa. Black Slate, etc.) or the installation of a new Roofing System, Copper Open Valleys offer a lifetime of protection, while affording an accompaniment level of enhancement to the rooftop.
 
Many of the new super heavyweight asphalt roofing shingles must be installed with open valleys. The metal of choice is almost always copper at the 16 oz. per sq. ft. grade. Occasionally, a property owner will opt for lead coated copper, which has a sacrificial layer of lead that will extend the life of the metal in the face of a potential damaging element in the environment. Sometimes, the irregularities of copper patinas are not to the liking of the client, and the lead coated copper offers a silver color and more uniform appearance. Also, the new Terne II by Follansbee (Zinc coated Steel) is showing promise as a favorite.
Caution on the following:
Never use copper on Cedar Shake Roofs
Never use Aluminum as a Valley Lining
Always use Slip Sheet
Never Fasten Metal with direct fastening (Use Cleats)
  

  Environmental Elements that affect Copper
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PRINCETON: 609-466-6500

North-Central NJ, Mercer, Monmouth, Middlesex, Ocean, Hunterdon, Somerset Counties

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©Four Seasons Industries, Inc. 2004 serving New Jersey, Eastern Pennsylvania; Roofing, Siding, Vinyl Replacement Windows
                                     

 

                                      

Slate Roof Repair Restoration Copper Pole & Yankee Gutter Expert Chimney Flashings NJ Pa

 

 

 

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