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Mobile ViewROOFING INSPECTION & REPAIR AGE OF ROOFING ALUMINUM ROOFING AMERICAN CEMWOOD ROOFING ARCHITECTURE & BUILDING COMPONENT ID ASBESTOS IDENTIFICATION IN buildings ASBESTOS CEMENT & FIBER CEMENT ROOFING ASBESTOS MATERIAL REGULATIONS ASPHALT ROOF SHINGLES ASBESTOS ROOFING / SIDING DUST ATTIC LEAKS, CONDENSATION & MOLD ATTIC VENTILATION BEST ROOFING PRACTICES BUILDING SAFETY HAZARDS GUIDE BUILT UP ROOFS CEMWOOD ROOFING CERTIFICATIONS for ROOFING CONTRACTORS CHIMNEY INSPECTION & REPAIRS Chimney Flashing Mistakes & LeakS CHOOSING A ROOFING CONTRACTOR CLAY TILE ROOFING="/roof/roofcont.htm">CHOOSING A ROOFING CONTRACTOR COLD WEATHER ROOF TROUBLE CONCRETE ROOFING COOLING LOAD REDUCTION by ROOF VENTS CORRUGATED ROOFING COPPER ROOFING DEBRIS STAINING on ROOFS DECKS, ROOFTOP CONSTRUCTION DEFINITIONS of ENGINEERED WOOD OSB LVL etc DISASTERS: BUILDING INSPECTION & REPAIR SAFEY EARLY ROOF FAILURE DIAGNOSTIC QUESTIONS ENERGY SAVINGS in buildings EPDM ROOFS EXTRACTIVE BLEEDING on SHINGLES FELT UNDERLAYMENT REQUIREMENTS FIBER CEMENT & FIBERBOARD ROOFING FIRE RATINGS for ROOF SURFACES FIRE RETARDANT PLYWOOD FLASHING, ASPHALT SHINGLE VALLEYS FLASHING, CLAY TILE ROOFS FLASHING MEMBRANES PEEL & STICK FLASHING for METAL ROOFS FLASHING ROOF WALL DETAILS FLASHING ROOF-WALL SNAFU FLASHING SIDING DETAILS FLASHING WALL DETAILS FLASHING WOOD ROOF DETAILS FLAT ROOF MOISTURE & CONDENSATION GALVANIC SCALE & METAL CORROSION Green House or Solarium Roof Leaks GUTTERS & DOWNSPOUTS HAIL DAMAGED SHINGLES HEAT TAPES & CABLES on Roofs for Ice Dams HOT ROOF DESIGNS: Un-Vented Roof Solutions HOUSEWRAP INSTALLATION DETAILS HUMIDITY LEVEL TARGET ICE DAM PREVENTION INSULATION IDENTIFICATION GUIDE INSULATION INSPECTION & IMPROVEMENT LEAD POISONING HAZARDS GUIDE LEAKY ROOF DIAGNOSIS & REPAIR LEED GREEN BUILDING CERTIFICATION LOW SLOPE ROOFING MASONITE WOODRUF FIBERBOARD ROOFING MEMBRANE & SINGLE PLY ROOFS METAL ROOFING ALUMINUM ROOFING Aluminized Steel Roofs Barn Roofing, Metal COPPER ROOFING Corrugated Metal Roofing Enameled steel roofing Galvalume Metal Roofing GALVANIC SCALE & METAL CORROSION Galvanized Steel Roofing LEAD in ROOFING, EFFECTS LIFE EXPECTANCY of METAL ROOFS METAL ROOF COATINGS & PAINTS METAL ROOF EXPOSED FASTENER SYSTEM METAL ROOF EXPOSED FASTENER FLASHING Metal Shingle Roofs, Embossed, Antique Metal Roofing Sources & Manufacturers METALS USED IN ROOFING MODULAR METAL ROOF SHINGLE SYSTEM NOISE TRANSMISSION in ROOFS SNOW GUARDS on SLATE & METAL ROOFS Soldered Flat Shingle and Flat Copper Metal Roofs Stainless Steel Roofing STANDING SEAM METAL ROOF INSTALLATION TERNE METAL ROOFING ZINC METAL ROOFING MODIFIED BITUMEN ROOFING NOISE / SOUND DIAGNOSIS & CURE NOISE CONTROL for ROOFS PLASTIC ROOFING TYPES ROLL ROOFING, ASPHALT ROOF ARCHITECTURAL STYLES - PHOTO GUIDE ROOF CLEANING RECOMMENDATIONS ROOF COLOR RECOMMENDATIONS ROOF DORMER TYPES - PHOTO GUIDE ROOF INSPECTION SAFETY & LIMITS ROOF NOISE TRANSMISSION ROOF REPLACEMENT SNAFUs ROOF SLOPE DEFINITIONS ROOF VENTILATION SPECIFICATIONS SADDLE CONSTRUCTION at CHIMNEYS SLATE ROOF INSPECTION & REPAIR SNOW GUARDS on SLATE & METAL ROOFS SOD ROOFING SOUND CONTROL in buildings STAIN & BIODETERIORATION AGENT CATALOG STAINS on buildings - QUICK GUIDE STAIN DIAGNOSIS on ROOFS STAIN DIAGNOSIS on STONE STANDARDS for ROOFING STONE CLEANING METHODS STONE ROOFING STRESS SKIN INSULATED PANELS TEST LABS - ROOF SHINGLE THATCH ROOFING THERMAL EXPANSION of MATERIALS THERMAL MASS in buildings TILE ROOFING TRUSS UPLIFT, ROOF TRUSSES, Floor & Roof UNDERLAYMENT REQUIREMENTS on ROOFS WALK-ON ROOF SURFACES WARRANTIES for ROOF SHINGLES WIND DAMAGE to ROOFS WOOD SHAKE & SHINGLE ROOFING WORKMANSHIP & ROOF DAMAGE ZINC METAL ROOFING More Information |
This article describes the effects of using lead roofing products and metals. InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers nor with topics or services discussed at this website. Also see METALS USED IN ROOFING and see our metal roofing home page, METAL ROOFING. © Copyright 2012 InspectAPedia.com, All Rights Reserved. Information Accuracy & Bias Pledge is at below-left. Use page top links to major topics or use links at the left of each page to navigate within topics and documents at this website. Green links show where you are in a document series or at this website. Effects of Lead in Roofing SystemsLead Coated Copper and Health Effects:
"Lead Coated Copper Metal (LCC): A Case Study of Public Health Addressing Regulatory Gaps", Thomas Plant, MS, Leon Bethune, MPH, John Shea, MS, Paul A. Shoemaker, MPH, Jose R. Diaz, John W. Weathers, and Charles Mba, MS. Environmental Health Office, Boston Public Health Commission, 1010 Massachusetts Ave, 2nd floor, Boston, MA 02118, 617-534-2644, tplant@bphc.org 2007 Abstract:
Several queries about the effects of lead in roofing systems led us to find this 2002 Q&A offered by NRCA's Jack Robinson, RRC., Quoting: Question: What are the advantages of using lead or lead-coated copper when installing standing-seam metal roof systems? Are there any government regulations that prohibit or limit the use of lead or lead-coated copper in roof systems? Also, will water that runs off a roof system made from either of these materials pollute groundwater? Answer: Lead is a soft, common metal with several properties that are useful in roofing applications. Lead-coated copper is copper sheeting coated with lead on one or both sides. Because lead is malleable, it easily is shaped at relatively low temperatures (70 F [21 C]) without the need for periodic annealing to soften the lead and make it workable. Lead sheets can be manipulated readily with hand tools and formed into complicated shapes. When used for flashings, lead sheets can be formed and adjusted easily in the field to accommodate substrate irregularities. Lead also is corrosion-resistant. When left exposed, it develops a silver-gray patina that is insoluble in water. Because of the patina's insolubility, rainwater runoff over a weathered lead surface carries little lead or lead-based chemicals. Water runoff from lead surfaces will not cause stains to be deposited on adjacent building materials, such as stone, masonry or cladding. Lead-coated copper has several advantages when used to form metal roof systems. It provides a durable finish that can be left exposed or painted, and lead coating is more compatible with paint than other metals. Lead-coated copper also is lighter than lead sheets, which reduces roof panels' weight contribution to a roof assembly's dead load. Lead-coated copper, unlike copper, won't stain adjacent materials. It also is easier to form than plain copper because the lead coating acts as a lubricant. Both lead and lead-coated copper are durable roofing materials with longer estimated service lives than other common steep-slope roof coverings. In recent years, publicity regarding the toxicity of lead-based paint has been widespread. Many people incorrectly have assumed any exposed lead is a potential health hazard or pollutant. As previously stated, exposed lead sheets and lead-coated copper are not significantly soluble in water. The same property that prevents lead from depositing stains on adjacent materials also prevents lead or lead-based compounds from being washed off a roof system's surface and carried into groundwater. Some manufacturers of lead roof coverings have attempted to respond to the public's concerns by providing calculations of lead contamination for specific projects. These calculations take into account a roof system area that will contribute to watershed, estimated average amount of rainfall at a project's location and lead's corrosion rate. Several of these calculations indicate that the contribution of lead to groundwater attributable to water runoff from a lead roof system is one to two parts per trillion. The level at which the Environmental Protection Agency (EPA) imposes restrictions for lead in drinking water is 15 parts per billion (approximately 15,000 times less than the amount of lead contamination attributable to water runoff from a lead roof system). According to EPA representatives, there are no regulations that restrict or prohibit the use of lead or lead-coated copper in roof systems. However, should a question arise about a specific project, contact your regional EPA office for additional information. A list of EPA's 10 regional offices can be obtained from EPA's Web site, www.epa.gov. Additionally, some states may have regulations governing lead usage. To determine whether your state has specific requirements that regulate or prohibit the use of lead or lead-coated copper roof systems, contact your state's environmental protection agency.
You should be aware there is an Occupational Safety and Health Administration (OSHA) standard that applies to those who work with lead—"The OSHA Guide to Occupational Standard for Lead (General Industry)." For information about this standard, contact Ken Brown, NRCA's director of risk management, at (847) 299-9070, Ext. 262.Web search 09/29/2010, - original source: Articles on Lead Hazards In and Around the HomeLEAD POISONING HAZARDS GUIDE Metal Roofing Sources, Products, & ManufacturersBest Practices Guide to Residential Construction lists these producers and sources of metal roofing, metal roof fastening systems, and related metal roofing products
-- Adapted with permission from Best Practices Guide to Residential Construction. Questions & Answers regarding this articleQuestions & answers about lead roofing materials & lead flashing. Ask a Question or Search InspectAPediaHTML Comment Box is loading comments...
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