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Can 3/8" Balsa Core Go Over 35" Span on Deck Without Structural Bracing?
Does anyone know whether 3/8" balsa core material (sandwiched between
fiberglass skins) can go over a 35" span on a deck without any structural bracing? One area of the deck has some water damage and is "kind of" delaminated. The problem may be coming from an improperly sealed inspection hole. I am trying to drill many holes on the deck and inject thickened epoxy into the core to fix the damage. But I discover that the balsa core is only 3/8" thick (the thickness of the deck with core and skins is only 1/2"), and it needs to go over a 35" span in one direction without any structural bracing (the span over the other direction is around 9 feet without any structural bracing). Before I spend time injecting epoxy and all this, I need to figure out if 3/8" balsa core is strong enough to go over a 35" span. If this is not strong enough, I will have to abandon this project and leave bad enough alone (I don't have access to the bottom of the deck to add structural bracing); the reason is that the problem will come back even if I fix it with injection of epoxy. Any idea? Thanks in advance for any info. Jay Chan |
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