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Triple-Decker Maintenance: Keeping Boston's Workhorse Housing Sound

2026-06-11 ยท Boston Home Maintenance Editorial

The Porch System

Stacked wood porches define the form and the liability: probe posts, decking, and connections annually, repaint on cycle, and treat lean or bounce as urgent. Porch rebuilds are five-figure carpentry โ€” caught-early repairs are not.

Flat Roofs and Parapets

Rubber membranes on triple-decker roofs want inspection every spring and after ice events: seams, scuppers, and parapet flashing. Ponding water telegraphs the next leak. Membrane renewal is a known cycle โ€” budget it.

Heat: One System or Three

Single-boiler buildings make heat the owner's cost and the insulation case compelling. Separated systems shift costs but multiply service points. Either way: annual service, thermostat strategy, and pipe insulation in cold cellars.

The Envelope

Vinyl over original siding hides condition โ€” check what you can reach. Original windows plus storms can perform; gaps cannot. Watch sills and back stairs, the moisture-and-rot frontier.

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