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Home Additions

Framing, roofand envelopeclosed in and inspected.

The shell goes up quickly and then stops for inspection, because everything that follows hides what it covers.

Two-storey rear addition on a suburban New Jersey home, with siding matched to the original house

In detail

Framing, roof & envelope

Framing follows the engineered drawings: floor system, walls, roof structure, and openings sized for windows and doors that are already on order. Where the addition meets the existing house we open the wall only once the new structure is ready to be closed in behind it. The roof-to-wall junction — the valley, or the tie-in against an existing plane — is detailed and flashed, not sealed. Sealant is not a solution to a geometry problem, it is a delay before one.

The weather layer is a system rather than a list of products: sheathing, a water-resistive barrier lapped in the right order, flashing at every window head and sill and at every penetration, and continuity where the new envelope meets the old one. Framing and rough-in are inspected before insulation and drywall close it all up. That inspection is the last time anyone will see the structure, so we book it ahead rather than chase it.

What this covers

  • Floor system, walls and roof framed to the engineered drawings
  • Windows and doors set, flashed and integrated with the barrier
  • Water-resistive barrier lapped and taped, every penetration flashed
  • Framing and rough-in inspections booked before the work reaches them
Typical timeline
3–9 months
Where
All 21 New Jersey counties

Questions

Asked most aboutframing, roof & envelope

How long is my house open to the weather during an addition?

Not long. The addition is framed and roofed alongside the house first, and the existing wall is opened only once the new structure is ready to be closed in behind it. We seal that opening temporarily and plan the connection for a stretch of settled weather rather than a fixed date.

What is a water-resistive barrier, and why does it matter?

It is the layer behind the cladding that catches whatever water gets past it and directs it back out. It only works if it is lapped in the correct order and if the flashing at every opening is integrated with it — which is why most envelope failures we are called in to fix are not product failures at all, but sequencing failures.

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