Metal Roofing in New Hampshire — Home of Our Longest-Documented Roof

THE GILSUM ROOF IS THE ANSWER TO 'HOW LONG DOES IT REALLY LAST?' Installed September 2004 in Cheshire County: 55 squares of Charcoal Grey Interlock aluminum shingle, photographed recently, zero degradation through 21 New Hampshire winters. An asphalt roof installed the same year would be on its second replacement. This is documented, not marketed.

MOUNTAIN SNOW MEETS ITS MATCH

From the Lakes Region through the White Mountains, roof snow loads run heavy and long. Interlock's smooth interlocked surface sheds snow before it ponds and dams — no heat cables, no February roof rakes, no ceiling stains in March.

THE SEACOAST DOESN'T RUST IT

Portsmouth, Rye, Hampton and the Great Bay towns sit in salt air that corrodes steel roofing from the fasteners out. Interlock is aluminum: it cannot rust, which is why coastal installs like our Madbury Tudor — 43 squares of Deep Charcoal aluminum slate in Strafford County — keep their looks indefinitely.

GRANITE STATERS COME BACK

Bruce M. of Epping is on his third Interlock roof. Kristine M. of New Boston liked hers enough to call us back for the barn. Jon H. of Amherst chose us specifically for the 50-year transferable warranty. Monique G. of Pelham is eight years in and 'loves it.' Real names, real towns — the pattern repeats.

Preserving New Hampshire Architectural Character

Capes, colonials and Tudors keep their character: slate, cedar-shingle, shake and standing-seam profiles in aluminum, at a fraction of natural slate's weight and none of wood's maintenance.