Built Around the Existing Structure
One Town, Four Centuries of Building
Few towns in Massachusetts have this range. Downtown and Chiltonville hold genuinely antique houses with board subfloors and plaster. North Plymouth is dense late nineteenth and early twentieth century stock built for mill workers. Out at Manomet, White Horse Beach and Cedarville the housing is largely twentieth century coastal, much of it built seasonal and since winterised.
Each of those fails differently. The antiques move seasonally across old boards. The North Plymouth houses have usually had several rounds of plumbing and flooring layered in. The coastal conversions have light framing and a moisture load they were never designed for.
What the coastal side shares with the Cape is exposure. A house a few hundred yards from the water at White Horse Beach deals with the same salt air and the same humidity as one in Plymouth, and it holds that moisture the same way when it sits closed for part of the year.
So the assembly is the one we use everywhere and the preparation is set by the house. Framing and deflection read on site, the floor brought to a single flat plane, the shower built on Schluter Kerdi-Board, waterproof through the panel, and a bonded membrane detailed over every seam, corner and curb.
A coastal house in Plymouth asks the same of its waterproofing as one on the Cape does.