Roofing Underlayment

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Roofing

This study analyzes the US market for roofing underlayment, defined as the membranes installed on top of a roof deck prior to the installation of roofing to provide additional protection against leaks.

Roofing underlayment is offered in two product types – asphaltic and synthetic. Asphaltic underlayment – also known as roofing felt or tar paper – includes those with fiberglass, organic, or plastic backings, while synthetic underlayment comprises those products made from polypropylene, polyethylene, and other plastics.

Other roofing accessories, such as flashings, tapes, and coatings, are excluded from the scope of this study, as are such items as roof decks, insulated boards, and roofing boards.

Historical data (2010, 2015, and 2020) and forecasts for the years 2025 and 2030 are provided for roofing underlayment demand in millions of squares (one square equals 100 square feet) by:

  • product
  • barrier property (water-resistant and waterproof)
  • installation method (self-adhesive and mechanically attached)
  • residential and commercial building markets
  • application (the new and reroofing segments in residential and commercial building construction)
  • US geographic region and subregion

Forecasts are also provided for roofing underlayment demand in dollars (including inflation). The term “demand” – used interchangeably with “market”, “sales”, and “consumption” – is defined as all shipments from US plants, plus imports, minus exports. Some of the components in the tables may not add to the totals because of rounding.

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