SANFORD — A skylight company in Sanford has laid off nearly half its workers and hopes to find an investor to help it ride out the economic downturn.

Adrian Ayotte, president of Architectural Glazing Technologies, said the company was profitable in 2008 and 2009 but now the company is experiencing cash flow problems. The company laid off all 35 of its employees on March 19, but called back 20 of them on Monday when cash flow improved, Ayotte said. Work force needs are being determined week to week, he said.

The company originally focused on skylights but expanded its product line to include the glass and steel that clad the sides of high-rise buildings.

Its recent projects include the Kimmell Center for the Performing Arts in Philadelphia, Cardinals Stadium in Phoenix and Bellagio Hotel and Casino in Las Vegas.