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Approach a glass company with an accurate drawing of the light needed. Ask for laminated glass with temped outboard, heat strengthened inboard with .090 SGP interlayer. I'm not sure how thick your hatch could accommodate, but the thicker the better. 3/8" to 9/16". The thing about hurricane resistant glass isn't that it doesn't break, but when it breaks, it stays in the frame for the rest of the storm. The tempered glass can be HIT with a hammer with no effect. But tick the edge with a wrench and you can loose the whole thing. So, tempered outer for strength, heat strengthened inner for cohesion, SGP interlayer to bind it all together. You'll probably pay around $40/SF for it.We have several Dade County approved hurricane skylight families.
 
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