Tyvek Hard Structure is part of a family of tough, durable sheet products used in a variety of applications. It combines all the best physical properties and characteristics of paper, film, and fabric - in one exceptional material. While most products offer water resistance or breathability, Tyvek offers both. It is equally strong and protective in wet or dry conditions. Tyvek is lightweight, flexible, smooth, particulate free, opaque, and resistant to water, rot & mildew, chemicals, abrasion, and aging. Tyvek is significantly lighter than traditional fabrics or papers. Hard Structure Tyvek styles are paper-like and have a smooth slick surface with a very low coefficient of friction. Easy to handle, lightweight, strong, and extremely durable, Tyvek lends itself easily to a variety of applications that benefit from its unique characteristics and is easily sewn on any conventional sewing machine. HomeWrap Tyvek It is mainly used for ground cloths and tent footprints. It can be used as tent and tarp material. It has a printed side with Dupont Tyvek spelled out thoughout the roll. The other side is plain white. The weight of the fabric is 1.6 oz/sq yard and is about 6.4 mils thick. It is very durable, water resistant, and breathable. Also t can be used for tarps and tents. We have Adhesive Grommet tabs that can be attached to the perimeter or corners of the Tyvek. For every sheet you order you will receive 4 Grommet Tabs. Once you attach the tabs, they do not come off. They come in a package of 8 tabs that are ready to attach, peel, stick, DONE! No tools required. The weight of the material is about 1.6 oz per sq yard.