Churches in warm, humid climates or located near the Gulf have other kinds of problems with roofing, such as mildew or fungus. Jones says composition shingles can be treated with copper to prevent fungus or mildew. In addition, light colors should be chosen to reflect heat, says Jeff Hansen, another roofer. How Much to Pay The cost of a new roof depends on the roofing material you choose, the height and slope of your roof, its architectural design, and how much insulation you include. Metal roofs cost 7 to 10 times more than traditional asphalt shingles.
Costs also vary depending on geographic location.
A roof in the Northeastern United States can cost 2.5 times more than what it would cost in Houston, Texas. That's be cause a roof can be installed in snow country only six to seven months of the year. In addition, installation costs are higher in the North. Get Up There and Look Regardless of what kind of roof you install, make sure you inspect it at least once a year. Look for material deterioration, such as loose or missing shingles, stone delamination, granular collection in gutters, or bad seams.