Roof Replacement in Stratham, NH with Structural Repair and Skylights

What did this Stratham roof look like from the outside before we started?

From the street, this Stratham home looked like a straightforward roof replacement candidate — aging shingles, signs of wear consistent with a roof that had run its course. The homeowner knew a replacement was coming and reached out to Compass Exteriors for an evaluation. What the exterior inspection suggested was a standard full reroof. What the tear-off revealed was a different story.

This is one of the most important reasons a full tear-off matters on any roof replacement: it is the only way to see what is actually happening beneath the surface. A recover job — laying new shingles over old — hides every problem underneath and often accelerates it. On this Stratham project, getting down to the deck was the right call, and it exposed issues that needed to be addressed before a single new shingle went on.

What hidden structural and ventilation problems were discovered at tear-off?

Two significant issues emerged once the existing roofing was stripped back:

• Incorrect ventilation installation — the previous ventilation system had not been set up properly, leaving the attic without the balanced airflow that New Hampshire homes require to manage moisture and temperature through harsh winters and humid summers
• Sections requiring structural reframing — specific areas of the roof structure had weakened or were not built to the standard needed for a stable, long-lasting new roof system

Neither of these issues was visible from outside the home. They were only discoverable through a proper tear-off and inspection by a crew that knows what to look for. This is exactly where many contractors take shortcuts: they complete the shingle work and leave underlying problems for the next owner to deal with.

Why does improper ventilation matter so much in New Hampshire?

Ventilation is one of the least visible but most consequential parts of any roofing system. When attic ventilation is wrong, several problems compound over time:

• Moisture buildup — trapped humidity condenses on the underside of the roof deck, softening sheathing and potentially leading to mold over years
• Heat accumulation in summer — excessive attic heat accelerates shingle granule loss and can shorten the useful life of even a premium shingle
• Ice dam formation in winter — uneven attic temperatures cause snow to melt unevenly on the roof, refreezing at the cold eaves and forcing water under shingles
• Warranty implications — many shingle manufacturers require proper ventilation as a condition of the product warranty

On this Stratham home, correcting the ventilation system during the replacement was not optional — it was necessary to give the new roof a realistic chance of reaching its full expected service life. We rebuilt the ventilation approach so intake and exhaust were properly balanced for the attic volume.

How were the structural reframing areas handled?

The sections that required reframing were addressed before any new materials went down. Proper structural support underneath the decking is the foundation the entire roofing system depends on. Installing new shingles, underlayment, and accessories over a structurally compromised area creates a weak point that will likely require revisiting at significant cost down the road.

The homeowner was kept informed throughout. We documented the structural findings with photos and provided a video walkthrough explanation so the decision to address the reframing was clear and well-supported. No surprise add-ons, no vague verbal explanations — visible documentation the homeowner could review and understand.

What was involved in the skylight replacement?

The existing skylights on this Stratham home had aged to the point where replacing them was the right call. An aging skylight frame installed into a brand-new roof creates a predictable future leak point: the flashing interface between the old curb and the new shingle system degrades at a different rate than the rest of the roof, and water eventually finds the gap.

Installing new skylights as part of the overall roof replacement allowed the flashing and curb details to be integrated properly with the new system from day one. The result is a clean, watertight installation across the entire roof plane — not a new roof with old skylight liabilities embedded in it.

What makes thorough inspection the real differentiator on a Stratham roof replacement?

The short answer is that most homeowners cannot know what they do not know. A surface inspection — or worse, an estimate given from the driveway — cannot tell you whether the ventilation is correct, whether any framing sections need attention, or whether the skylights are going to leak within a few years of the new roof going on. Those answers only come from getting on the roof, stripping it back, and having the experience to recognize what you are looking at.

At Compass Exteriors, every roof replacement includes a thorough post-tear-off inspection with photo and video documentation. If we find something unexpected, the homeowner sees it directly and we explain what it means in plain English. That approach is especially important on older homes throughout Stratham, where deferred ventilation corrections and aging structural details are common findings once the old shingles come off.

Roof replacement in Stratham, NH

This project is a strong example of why the quality of a roof replacement comes down to what happens during — not just what is visible when the crew leaves. Proper ventilation, solid structural framing, and correctly integrated skylights are the details that determine whether a roof system actually performs the way it should through New England weather. To learn more about our work in your area, see our Stratham roofing service area page. For projects that involve structural findings or skylight work, our full roof replacement process covers every step from inspection to final walkthrough. Call 603-219-1523 to get started with a free estimate.