Improper nailing blamed for recurring roof leaks in New Hampshire home

Paramount Roofing says a Belmont, New Hampshire roof kept leaking and shedding shingles because the shingles were nailed into decking instead of structural framing. The company replaced the system with a standing seam metal roof after finding the fastening error during removal of the old shingles.

Why it matters: - Homeowners with repeated roof leaks may be dealing with a hidden fastening problem, not just bad shingles. - Improper nailing can cause the same failure to return after multiple repairs. - The Belmont case shows why repeated patch jobs can miss the real source of roof damage.

What happened: - Paramount Roofing responded to a Belmont, New Hampshire home with an active leak and shingles sliding out of place. - The homeowner had already paid for multiple repairs from other contractors. - After removing the old shingles, the crew found the shingles had been nailed into tongue-and-groove plywood decking instead of proper structural framing. - The nails were only biting about a quarter of an inch of material.

The details: - That shallow hold was not enough to keep the shingles secured. - The weak fastening explained why the sliding kept coming back. - Paramount Roofing installed a new layer of plywood over the existing insulation to create a properly fastened base. - The company then installed a standing seam metal roof using metal clips. - That system does not rely on face nailing through the panels. - Brandon Sullivan, owner of Paramount Roofing, said recurring problems usually mean the real cause was never fixed. - Sullivan said the mistake happens more often than people realize. - Paramount Roofing serves Belmont, Tilton, Franklin, Gilford and Boscawen, plus the wider Lakes Region and central New Hampshire. - The company offers roof replacement, roof repair, standing seam metal roofing and asphalt shingle systems.

Between the lines: - The case points to a broader quality-control issue in roofing work, where fastening methods can determine whether repairs last. - A leak that returns in the same area may be a sign the roof deck or installation method needs inspection before more money goes into patching.

What's next: - Paramount Roofing is urging homeowners with repeated shingle problems, sliding or leaks in the same area to inspect the deck and fastening method before approving another repair. - The company continues serving homeowners across New Hampshire from its Hooksett base. - More information is available through the company's social channels: Instagram, Facebook and YouTube.

The bottom line: - When roof leaks keep returning, the fix may require rebuilding the base — not another patch.