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Metal Roof Basics

Now Centria

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Metals usedcopperzincstainless steelgalvanized steelprefinished steelleadcor ten steelaluminum

Don’t mix metals, twodifferent metals and a littlewater can cause a galvanicreaction which will degradethe less noble metal(pinhole, or disappearance)

Use the same metal fornails, flashing, gutters,downspouts, cleats...

Basic standing seam

Pan

Cleat

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Subcomponents of standingseam

Tin roof, homemadestanding seam

Cleat remnantFrom above

From below

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Kresge Auditorium, M.I.T. campusEero Saarinen 1955

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Kresge Auditorium, M.I.T., Eero Saarinen

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Saarinen uses standing seams, flat lock seams, and batten seams tomanipulated the scale of the texture on the roof

Flat Lock SeamBatten SeamStanding Seam

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Flat Lock SeamBatten SeamStanding Seam

Ingalls Hockey Arena, YaleEero Saarinen 1959

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Milwaukee Art MuseumSantiago Calatrava 2000

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Prefab standing seams

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Preformed pans, snap downseam covers

Snowbirds…hold the snow and ice to prevent “rapid release” (avalanche!)of ice and snow from metal and tile roofs.

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Another snap together standing seam

pan

pan

cleat

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Pan, fold (orsnaps) over cleat

Cleat, fasten todeck orsheathing

Bermuda Roof… Horizontallines

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Isabel Roberts House, River forest

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Isabel Roberts House 1908

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Flashing in tree trunk…reglet?

Newly patched in copper pans