Yes, black fiberglass tissue can be used in outdoor environments. It is known for its durability and resistance to various weather conditions, making it suitable for applications such as roofing, siding, and insulation. However, it's important to ensure that the black fiberglass tissue is treated with UV inhibitors to protect it from the sun's harmful rays, which can degrade the material over time. Proper installation and maintenance are also crucial to prolong its lifespan and performance in outdoor settings.