- Project Time: An afternoon.
- Cost: $50–200, depending on size.
- Energy Saved: High. Shading, especially of windows, is extremely effective at reducing interior temperatures in summertime.
- Ease of Use: Harvesting fruits can be somewhat more difficult when they are high up over windows.
- Maintenance Level: Low. A well-constructed trellis could need some occasional tightening, and the climber will need some annual pruning.
- Skill Levels: Carpentry: Basic.
- Materials: 9-gauge galvanized or 121/2-gauge hightensile fence wire, trellis brackets (enough for every 10 feet or less), spring tighteners, washers.
- Tools: Drill, wire cutters, needle-nose pliers, adjustable wrench or ratchet set, pilot drill bit for lags.
Stephen  and Rebekah Hren , authors of The Carbon-Free Home: 36 Remodeling Projects to Help Kick the Fossil-Fuel Habit, are full of an astounding number of great tips to reduce energy consumption. This one is not only a great way to reduce your summer cooling costs, but also is a fun project that will improve the look of your house or apartment. Below Stephen and Rebekah outline their plans for a vine-covered horizontal trellis that will block the high summer sun’s direct light from pouring into your home, but will still allow the low winter’s sun to warm your windows. Have fun! Building a Horizontal Trellis for Shading Renter friendly.