Aye. Once the moisture incursion begins, it doesn't take long at all. Sad story, but, 'tis the way of the world. It's also one of the reasons the places I've visited in the deserts over here are so remarkably well-preserved. Never ceases to amaze me how long something can last (over 100 years in some cases, including wood and fabrics) when there's no precipitation and very dry air.