Also, plants put the water together with carbon dioxide to make sugar. This takes energy, which plants get from light. Water also helps plants stand up tall, even when they arenât made of wood. They donât have bones, but they do have cell walls and water pressure.
The average cost to sealcoat an asphalt parking lot with either asphalt or coal tar emulsion pavement sealer ranges from $0.14 - $0.25 per square foot.he average cost to sealcoat an asphalt parking lot with either asphalt or coal tar emulsion pavement sealer ranges from $0.14 - $0.25 per square foot.
Professional Installation. The cost of professional driveway seal coating can vary dramatically by region of the country. Professionally sealing a 1,000-square-foot driveway in the eastern United States can cost between $100 and $160 as of October 2010.ost of Materials. A typical 5-gallon bucket of asphalt sealant is sufficient to cover around 400 square feet of asphalt. Five-gallon buckets of cheaper sealants are available for as low as $5 in 2010. Higher-end sealants are available for upwards of $30 per bucket.