22 million homes in Britain have been identified as in need of energy-saving upgrades. 8.5 million of those homes are deemed ‘hard to deal with’. This means that traditional retroactive insulation techniques, such cavity wall insulation are not always an option.
External wall insulation (EWI), allows you to insulate your home by attaching insulation to the exterior. This will improve thermal performance, reduce energy consumption — thus lowering energy bills — as well as updating the aesthetics.
EWI systems consist of multiple layers. There are many options for insulation board, each one suited to different projects.
After fixing the boards to a wall, the system is constructed with multiple coats.
Render
Reinforcement mesh
Primer
Topcoat or decorative finish
You have the option to choose a brick-effect finishing so that you preserve the historic character of your home.
The work takes place outdoors, so you won’t need to relocate while it is being done. EWI doesn’t interfere with electrical and plumbing systems. This means that space inside the house is not reduced, unlike internal insulation which can make the inside of the home smaller by up to 7 percent.
These are 5 benefits of using external wall insulation in your project.
1. Enhances the thermal performance a building
EWI enhances the walls’ thermal resistance and minimizes heat loss. This improves indoor thermal comfort, reduces heating bills, and minimizes CO2 emissions.
2. Living spaces become more comfortable
Heat loss through walls of a home can cause damp. This can lead paint to become brittle, plaster to fall apart, wallpaper to come unglued, and even mold development. A damp home can also cause respiratory problems. An insulated home reduces condensation and can also help with damp issues. You will find your home cooler in summer and warmer in winter.
3. Reduces noise levels
Noise pollution is a threat to our health as well as our well-being. You can reduce disturbances like traffic noise and other outside sounds by installing an EWI system. A quieter home is more comfortable.
4. A more attractive home is possible
EWI is an excellent way to revive your home’s appearance.
We offer a wide variety of decorative finishes that are durable and low-maintenance. If you prefer a painted finish, there are over 100 options. Brick-effect finishes are available for those who prefer a traditional look. Pebble dash comes in a variety colors. We also offer mineral renders that can be used to make a range of architectural details such ashlars and quoins.
5. This is a more valuable and high-performance build
The long-term impact of renovations on your home’s value is crucial. Prospective buyers will be impressed by the home’s design and energy efficiency. They will also love the low heating cost. Potential buyers will be more interested in a home that is thermally efficient and well-insulated than one that looks ordinary.
