A recent Gallup poll found that, for the first time in eight decades of surveying, the portion of U.S. adults belonging to a church, synagogue, or mosque fell below 50 percent in 2020. Membership, in fact, had been falling since the 1980s. And at under $3 billion in annual construction value, according to Census Bureau estimates, the Religious sector is often an afterthought in discussions about nonresidential building spending and trends. Houses of worship upgrade and expand