Wall Height and Window Preferred Height
Matching the size of your window to the room and the house is important, too. Oversized windows will fit poorly and may make the home look imbalanced, while undersized windows can also create an odd ratio appearance and minimize the benefits of window installation. Use design software and confer with an architect to determine the right size of windows to install and how to attractively space them to look best. Naturally, you want to create an appearance of symmetry and balance with the size and placement of your windows.
Window Placement Indoors and Outdoors
The location of your windows also matters in a functional sense, beyond aesthetics. Consider how side-facing windows can look nice in a CAD design, but in practice may face an alley or the blank wall of another house. Likewise, a window that looks nice outside may be placed in an awkward place indoors - like in a closet or bridging an interior wall. The right windows are not only well-placed, they are designed to fit into the spaces where the exterior and interior spaces would both benefit from window placement.
Number of Windows Needed
When selecting a model of window to install, it can also help to consider the number of windows you need. A large set of small to medium-sized windows should be selected so that they look good in a patterned design. Many homes choose a slightly different window design for the upper stories to create an aesthetic contrast with the ground floor. Alternately, you can choose to minimize the number of windows you need by choosing a less numerous set of larger windows.
Windowsill Depth and Dual-Function Designs
Then there's the question of tasking your windows to dual-function. Some windows can slide open to become deck pass-throughs. Some windows have deep sills for flower beds, decorations, or seating. Deep sills can also create space for built-in cabinets and storage. The windows that suit the style of your home can also be selected for additional functions. If you want deep windowsills for storage or seating, choose windows that accommodate the style.
Regional Temperature and Weather Patterns
Local weather plays an important role in window selection. Based on the temperatures and weather common to your area, you should choose the feature priorities of your windows. Anywhere with extreme heat or cold should install double-paned windows that prevent transmission of temperature through the window panes. Homes in damp regions need windows that are designed to be especially moisture-resistant and to integrate with moisture protected building materials. Homes in hot dessert regions need windows that are not damaged by sun exposure and extremely low humidity. Your local climate may also influence your choice for features like opening-and-closing mechanisms, screens, pass-throughs, and window boxes.
Light Direction and Natural Light
The natural direction and quality of sunlight can also influence your window choice. East- and west-facing walls will receive direct sunlight as the sun rises and sets. South-facing external walls receive the strongest sunbeams, at least in the Northern Hemisphere. This allows you to choose your windows based on the sunbeams that will come through them. You can design your rooms for gentle, diffused sunlight with the use of frosted glass and drapes, or you can design your rooms to soak up as much sunlight as possible.
Sunlight and Energy Efficiency
Sunlight direction and strength also influence your home's energy efficiency. Calculate which walls will soak up the most sunlight and whether that is desirable. The right windows can either maximize or minimize the heat transferred into your home. In cold climates, use sun-rooms and insulated windows to soak up the sun without letting in the chill. In hot climates, use windows to minimize the heat that makes it into your home and keep the cool AC air indoors.