Some types of foods have the opposite effect of vitamin C and inhibit nonheme absorption. While it can reduce the effect of nonheme inhibitors, vitamin C can't prevent them from interfering with nonheme iron absorption. Beans, grains and rice contain a substance called phytic acid, which binds with nonheme iron and prevents absorption.
Type of roofing material matters. According to Homewyse, which provides average costs for home improvement projects, the cost per square foot for a shingle roof is between $5.43 and $7.05. That equates to about $1,086 to $1,409 per 200 square feet (or for two squares). Homewyse estimates the cost and labor for an asphalt roof for a 1,200-square-foot house in larger markets across the country ranges between $4,100 and $6,000.
The Costs. The average maximum reported cost of red cedar shingle roofing in the United States is $8.87 per square foot. The average minimum reported cost of red cedar shingle roofing in the United States is $6.80 per square foot.When it comes to cedar roofing, red cedar is certainly the most popular option.he average maximum reported cost of red cedar shingle roofing in the United States is $8.87 per square foot. The average minimum reported cost of red cedar shingle roofing in the United States is $6.80 per square foot.