Did you know buyers are willing to pay nearly 3.5 percent more for a home that features green or high-performance features? And while that may not sound like a lot, it factors out to be a whopping $8,750 for every $250,000. The key to getting the most for your green upgrades, however, lies in knowing exactly which ones tilt the scale in your favor. Here's a list of best green improvements homeowners should make this year to get the most ROI:

1. Replace Your Front Door

The reasons for replacing a dated and drafty front door are many:

• It improves your home's energy efficiency.
• It improves your home's security.
• It increases your home's curb appeal. 

As far as green upgrades go, a new, Energy-Star Certified door can shave up to 10 percent off your utility bill. And if you opt for steel door replacement, you may see as much as a 101-percent ROI when it comes time to sell. 

2. Replace Your Garage Door

Replacing your existing garage door with a new garage door can earn you an ROI of up to 97.5 percent, says HomeAdvisor. Opt for one that's energy efficient and features double-layer doors with extra insulation to get the best return on your investment. 

3. Upgrade Your Windows

Energy-efficient replacement windows can net you an ROI of between 77 and 79 percent. And you'll get bonus points for using real wood. Window replacement has all the same benefits of door replacement -- keeping your family cozy and comfortable while lowering the costs of heating and cooling your home. Oh, and they look nice to prospective buyers, too. 

4. Replace Your Roof

If your roof functions well or is relatively new, replacing it won't help your ROI. But if you've spotted the telltale signs of roof failure, such as missing shingles or water stains on your interior ceiling, you'll want to replace that before listing your home for sale. Roof replacement that's both efficient and aesthetic carries an ROI of up to 80 percent. And while your contractor is up there, opt for a roofing material that's going to increase your home's energy efficiency, such as cool metal. Metal reflects the rays of the sun instead of absorbing them, and can increase your home's energy efficiency by leaps and bounds. 

If you're thinking of selling your home in the near future, consider boosting its efficiency before the day. You'll be able to list at a higher price point, and you'll be able to choose from a bigger pool of buyers than comparable homeowners in the area who haven't made the effort.