Abstract: Fibrous insulation products have a binder composition that may include a carbohydrate and a crosslinking agent, and potentially other optional ingredients. The shelf life and physical properties of fibrous insulation products, particularly those having bio-based binders, can be improved by packaging that completely envelopes and seals the fibrous product from exposure to atmospheric conditions. Exemplary envelopes disclosed include sealed bags, double stretch wrap and stretch hoods. Properties that can be improved include recovery of loft, restoring force and tensile strength among others.