How-To Guide
How to Add Half-Moon Vents
June 19, 2023
![](https://media.coversports.com/transforms/images/resources/155332/halfmoon-vent-header_130ae25898035607948a609d6df8f2a6.png 350w, https://media.coversports.com/transforms/images/resources/155332/halfmoon-vent-header_ecdba1803321637e9e66e9d6b5ed7624.png 500w, https://media.coversports.com/transforms/images/resources/155332/halfmoon-vent-header_8ca1f7606d92f5f17f22b244bc5fd8c0.png 800w, https://media.coversports.com/transforms/images/resources/155332/halfmoon-vent-header_dc8f37381a665a64d183a903f05455b9.png 1000w, https://media.coversports.com/transforms/images/resources/155332/halfmoon-vent-header_af67eb1fbd8eccf91347d94e2642ed4d.png 1200w)
Note: vents are typically spaced at 10’ intervals horizontally, and halfway between top hem and center lacing lip. If no lacing lip, then halfway between top and bottom hem.
![](https://media.coversports.com/transforms/images/155253/half-moon-vents-1-2_61893afc760a7328052a373d489f88c5.png 250w, https://media.coversports.com/transforms/images/155253/half-moon-vents-1-2_b07739afa44fd85474d73386aff1972a.png 350w, https://media.coversports.com/transforms/images/155253/half-moon-vents-1-2_b52aeff1da97c6da6d7956e791a586c1.png 500w, https://media.coversports.com/transforms/images/155253/half-moon-vents-1-2_5ae402c9837860cd6e4f65e304b3a5fa.png 800w)
1. Lay windscreen on a flat surface. Measuring from the left side of the screen, make a 1” vertical mark at desired center of vent.
2. Measuring from the top of the screen, make a 1” horizontal mark in center of screen (or desired location).
![](https://media.coversports.com/transforms/images/155254/half-moon-vents-3-4_61893afc760a7328052a373d489f88c5.png 250w, https://media.coversports.com/transforms/images/155254/half-moon-vents-3-4_b07739afa44fd85474d73386aff1972a.png 350w, https://media.coversports.com/transforms/images/155254/half-moon-vents-3-4_b52aeff1da97c6da6d7956e791a586c1.png 500w, https://media.coversports.com/transforms/images/155254/half-moon-vents-3-4_5ae402c9837860cd6e4f65e304b3a5fa.png 800w)
3. Align template with intersecting measurements.
4 Mark outer edge of half moon template with chalk.
![](https://media.coversports.com/transforms/images/155268/half-moon-vents-5-6x_61893afc760a7328052a373d489f88c5.png 250w, https://media.coversports.com/transforms/images/155268/half-moon-vents-5-6x_b07739afa44fd85474d73386aff1972a.png 350w, https://media.coversports.com/transforms/images/155268/half-moon-vents-5-6x_b52aeff1da97c6da6d7956e791a586c1.png 500w, https://media.coversports.com/transforms/images/155268/half-moon-vents-5-6x_5ae402c9837860cd6e4f65e304b3a5fa.png 800w)
5. Cut along outline using a Hot Knife (using a blade or scissors may result in tearing and is NOT recommended).
6. Clean off chalk. Repeat above for all necessary vents.
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