I'm looking to roof over my backyard deck. I have particular desires for it. It must - let in light - be rainproof - not reflect sound well - be bug-unfriendly (more on this) Most of the materials that are transparent and rainproof are also hard, and thus reflect sound efficiently, meaning it definitely sounds like you're under a roof. This defeats the purpose of being outdoors. As for bug-unfriendly, it merely needs to be not impossible to clean. One thing I've thought of is to use Palram acrylic panels: I've got them over my carport now. They're OK but very noisy. I thought of hanging a layer of canvas panels to dampen the sound, but then they become bug magnets (got LOTS of spiders already, putting up a gap like this will fill with spiders until the roof is opaque!) So it's got to be arranged in a way that doesn't encourage webs, and also allows the webs to be cleaned. Suggestions?