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ROOFING INSPECTION & REPAIR
AMERICAN CEMWOOD ROOFING
BEST ROOFING PRACTICES
BUILT UP ROOFS
CATHEDRAL CEILING VENTILATION
CERTIFICATIONS for ROOFING CONTRACTORS
CHIMNEY FLASHING Mistakes & Leaks
COLD WEATHER ROOF TROUBLE
DECKS, ROOFTOP CONSTRUCTION
EPDM, RUBBER, PVC ROOFING
EXTRACTIVE BLEEDING on SHINGLES
FIRE RETARDANT PLYWOOD
FLASHING on BUILDINGS
FLAT ROOF MOISTURE & CONDENSATION
Green House or Solarium Roof Leaks
HEAT TAPES & CABLES for ROOF ICE DAMS
ROOF ICE DAM LEAKS
MASONITE WOODRUF FIBERBOARD ROOFING
NOISE CONTROL for ROOFS
PLASTIC ROOFING TYPES
PVC, EPDM, RUBBER ROOFING
ROOF ARCHITECTURAL STYLES - PHOTO GUIDE
ROOF CLEANING RECOMMENDATIONS
ROOF COLOR RECOMMENDATIONS
ROOF INSPECTION SAFETY & LIMITS
ROOF LEAK DIAGNOSIS & REPAIR
ROOF NOISE TRANSMISSION
ROOF REPLACEMENT SNAFUs
ROOFING FELT UNDERLAYMENT REQUIREMENTS
ROOFING MATERIALS, Age, Types
SADDLE CONSTRUCTION at CHIMNEYS
SNOW GUARDS & SNOW BRAKES
STANDARDS for ROOFING
STRESS SKIN INSULATED PANELS
TEST LABS - ROOF SHINGLE
TREES & SHRUBS, TRIM OFF BUILDING
TRUSSES, Floor & Roof
UNDERLAYMENT REQUIREMENTS on ROOFS
VENTILATION in BUILDINGS
WALK-ON ROOF SURFACES
WARRANTIES for ROOF SHINGLES
WORKMANSHIP & ROOF DAMAGE
Aluminum roofs: this article describes aluminum roofing materials, choices, installations, inspection, defects, roofing repairs, and product sources. Aluminum metal roofing, first used in the U.S. in 1890 on Philadelphia's City Hall, difficult to solder, relied on mechanical joints and slope to shed water.
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Aluminum that is anodized or painted is highly resistant to corrosion, making it well-suited to coastal environments provided it is factory-coated with a suitable finish. (although lightweight aluminum flashings tend to pit and oxidize in salty air).
Aluminum roofing's light weight is an advantage in reroofing. Aluminum roofing also reflects heat and may thus reduce building cooling costs in hot sunny climates.
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Because of its high coefficient of expansion, however, attachment systems must be designed to accommodate the movement of long aluminum roof panels.
And since it has a lower tensile strength than steel, more fasteners may be required to achieve wind ratings comparable to a steel roof.
Aluminum roofing, softer than steel or copper, dents easily and so may suffer cosmetic damage from hail. Hail damage is reduced if the aluminum panels are well secured to solid roof decking.
Also, aluminum has a low melting point so it relies on two layers of fire-resistant underlayment, such as VersaShield, to get a Class A fire rating.
Most aluminum used in roofing has a baked-on paint finish rather than an anodized finish. Although anodized aluminum is less costly, new paint technologies such as Kynar® and Hylar® carry better warranties and are available with a low-gloss finish generally favored on roofs. Some coated aluminum products come with transferable lifetime warranties.
Aluminum roof noise
Depending on how the roof is installed, secured, and insulated, an aluminum metal roof may be noisy. See ROOF NOISE TRANSMISSION where we describe the noise transmission properties of metal roofing.
According to the US NPS,
Just below we list sources of aluminum roofing products. Also see details about the properties of aluminum roofing at Aluminum Metal Roofing System Properties
Where to Buy Aluminum Roofing
Details about the properties of aluminum roofing are found at Aluminum Metal Roofing System Properties
The patched corrugated metal roofing shown below (left) covers a pre-1900 home currently used as a parsonage in Dover Plains, NY. This roof was a mix of corrugated galvanized steel and corrugated aluminum roofing.
At CORRUGATED ROOFING we discuss all types of corrugated roofing products: metal and others.
Best 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.
Continue reading at CORRUGATED ROOFING or select a topic from the More Reading links shown below.
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