Table of Contents
When planning a window screen replacement or a new porch screen installation, it’s helpful to understand the key terms associated with screen materials and features. This glossary explains common porch screen terms and window screen terms to help you make informed decisions and get the most out of your project.
Mesh
Mesh refers to the woven material that forms the screen. It is defined by the number of openings per linear inch, such as 18×16 mesh, which means there are 18 openings horizontally and 16 vertically in each square inch. This measurement impacts the screen’s effectiveness at blocking insects, debris, and dust while allowing airflow and visibility. For example, a lower mesh count (14×14) might let in smaller bugs like gnats, while a finer mesh (20×20) provides better protection. Choosing the right mesh depends on the purpose of the screen—whether it’s keeping out pests, enhancing airflow, or improving durability.
Openness
Openness is the percentage of open space within the screen material. It’s calculated by comparing the total area of the apertures (openings) to the total screen area. A high openness percentage, like 40%, allows more airflow, visibility, and natural light, making it a great choice for people who want a clear view or better ventilation. On the other hand, a lower openness percentage, such as 20%, provides more privacy, better sun protection, and enhanced debris-blocking capabilities. The right openness level depends on your priorities, whether enjoying unobstructed views or shielding your porch from prying eyes and sun exposure.
Aperture
Aperture refers to the size of the individual openings in the screen material, typically measured in microns or fractions of an inch. Smaller apertures protect against tiny insects, like no-see-ums or midges, making them a must-have in bug-heavy regions. Larger apertures allow more airflow and light transmission, making a porch or window feel breezier and brighter. For instance, no-see-um screens might have apertures as small as 0.25 mm, while standard screens for urban environments might have larger openings to balance protection and airflow.
Diameter (Yarn/Wire)
The diameter of the yarn or wire used in screen material influences both its durability and performance. Thicker yarn or wire creates a sturdier screen, ideal for high-traffic areas, porches exposed to heavy winds or homes with pets. For example, pet-resistant screens use thicker, reinforced materials that withstand scratching and clawing. However, thicker yarns may slightly reduce visibility and airflow compared to thinner options. On the other hand, finer yarns offer a more seamless view and better light transmission, making them ideal for windows where aesthetics and visibility are top priorities.
Spline
The spline is the flexible, rubber-like cord that secures the screen material to its frame. It’s pressed into a groove around the frame, locking the mesh tightly. Splines come in different diameters to accommodate various frame and mesh thicknesses. Using the correct spline size is crucial for ensuring the screen stays taut and doesn’t loosen over time. A properly installed spline helps extend the lifespan of the screen, ensuring it remains secure even in harsh weather conditions or with frequent use.
Sun Protection Percentage
The sun protection percentage measures how much UV radiation the screen material can block, directly impacting its ability to reduce glare and heat. Screens with a higher sun protection percentage, such as solar screens, can block 80% to 90% of UV rays, making them an excellent choice for sunny climates like Atlanta. These screens keep your porch or home cooler by reducing heat gain, protecting your furniture and flooring from fading, and providing a more comfortable, relaxing space. However, higher sun protection can reduce visibility slightly, so homeowners should weigh the trade-off between comfort and view clarity.
Have Questions or Need Help?
Understanding what each porch screen term and window screen term means can help you make the best choices for your home, but it’s okay if you still have questions. AAA Screen & Window is here to guide you every step of the way. From selecting the correct mesh and aperture size to determining the best sun protection percentage for your Atlanta home, we’ll make sure you get exactly what you need.
Contact us today to schedule your consultation with our screen experts. Whether you need to replace a window screen or design a custom porch enclosure, we’re here to help.