The U.S. home-building industry, which relies heavily on immigrant labor, could face significant challenges under stricter immigration enforcement rules outlined during President Donald Trump’s first week in office.

Foreign-born workers account for nearly 30% of all those employed in construction trades, according to 2015 research from the National Association of Home Builders, and the share is even higher among occupations that are central to home building, such as roofers and drywall installers.

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