Spray Foam Insulation in Dongan Hills, NY

Spray foam insulation in Dongan Hills often starts with a 1950s house. Wikipedia notes that Dongan Hills was one of the first Staten Island neighborhoods to see a surge in home building after World War II, with many small one-family homes built during the 1950s, and that growth sped up again after the Verrazzano-Narrows Bridge opened in November 1964.

What 1950s houses need

Small postwar houses were built with little insulation and lots of air leaks. Attics are often shallow with only a few inches of old material. Walls may have thin batts or nothing at all. Basements and crawl spaces have bare rim joists. Many have been expanded since, with dormers or rear additions that brought new insulation problems where old and new framing meet.

The Colony and the hills

The hills in the name are the eastern ridge of Todt Hill, and a hilly section above Richmond Road is called the Dongan Hills Colony. Houses on that higher ground get more wind exposure. Lower blocks toward Midland Beach sit closer to the shore. We plan the work around where your house sits: more emphasis on air sealing up high, more on moisture below grade down low.

Additions and dormers

Where a house was expanded, the joint between the original house and the addition is often a weak spot. Kneewalls in dormered attics, floors over crawl spaces under additions and the tops of old walls that now open into new space all need sealing. Closed-cell foam is useful in those tight, irregular spots.

Renters and owners

Wikipedia's census summary for the Grasmere-Arrochar-South Beach-Dongan Hills tabulation area shows 42.8% of occupied units are rented. Many owners here have two-family houses.

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