For many homes, the stylistic and utility differences between external and internal shutters are widespread. External shutters are the type that are placed on the outside surface of the window to provide protection against exterior elements. Internal shutters are also designed to protect the window frame, but mostly from internal factors and outside elements such as the sun's rays.

In addition to these utility differences are the stylistic variations for internal and external shutters. Each type of shutter features its own unique style, and you will often find unique selections for both internal and external elements. So which shutter type is the better choice for your home?

Georgian vs. medieval homes

The overall look and theme of the home will heavily determine what choice of shutters to install.  Internal shutters are suited for Georgian homes that were based on a high level of decoration on the inside with a simplistic exterior design. Georgian homes are thus defined by a simple exterior window with flashy and multifunctional internal shutters.

On the other hand, external shutters are suited for medieval homes. They give off a need to protect and seclude the property due to its important function. 

Level of protection

External shutters offer more protection against outside weather conditions. Damage from strong winds and heavy precipitation can be prevented by simply closing the shutters to completely cover the exterior surface of the windows. External shutters also deter criminals because they know they will have a harder time gaining access to the premises.

Internal shutters are only able to protect the windows from the inside. They are quite useful for preventing damage from household items that are thrown against the windows from the inside.

Versatility vs. utility

If you're looking for more versatile uses and styles over factors such as protection and heat penetration, internal shutters might be an option to consider. Indeed, internal shutters come in many different materials, designs, and uses.

From retractable shutters that can cover the window partially or entirely, to soft fabrics that are comfortable to touch yet effective at dimming light, indoor shutters come in a wide array of options to choose from.

Heat penetration

If you're looking to control how much heat enters the home on a daily basis, external shutters are the way to go. Most designs only allow about 13% heat penetration, while comparable internal shutters allow as much as 63% of heat to pass through.

Compatibility with HVAC systems

External shutters typically result in lower maintenance and installation costs for HVAC systems. 

Ultimately, it is up to you to determine your uses and preferences of shutters before you can make a final decision.