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.
1 Higher-quality travertine boosts the DIY costs to $5.50-$16 a square foot, or $5.50-$1,600 for 10'x10' and $8,250-$24,000 for 1,500 square feet. For new floors, many experts recommend at least one coat of sealant prior to grouting and one or two coats after the installation is complete. 2  Sealing a floor can cost $40-$300 or more, depending on condition and size.