(Bloomberg) -- Carlyle Group Inc. and the family owners of Tamko Building Products are considering a sale that could value the maker of roof shingles at more than $3.5 billion, according to people ...

For asphalt shingle producer TAMKO, the answer is that tariffs are going to hurt consumers. TAMKO's Stephen Hartnett was selling asphalt shingles on the basis that they're so sturdy, even most ...