tarpaulin
The waterproof covering you're referring to is likely "tarpaulin," often abbreviated as "tarp." Tarpaulins are made from heavy-duty material and are used to protect objects from moisture and environmental elements. They are commonly used in construction, camping, and outdoor activities.
Linings
Tar paper is used as a moisture barrier between the plywood decking and the roofing materials.
To tar and feather someone is to smear or cover someone (as the Whigs di to the Tories) with tar and throw feathers over them.
bitumen and pitch"Make yourself an ark of gopher or cypress wood; make in it rooms (stalls, pens, coops, nests, cages, and compartments) and cover it inside and out with pitch (bitumen)".(AMP)
Kri
If you are referring to the derivitive of the opium poppy called "tar," it certainly is.
Brush on latex basement paint will cote the area without problem if the tar is stable and not subject to high temperatures.
After a setback with the revolving guns and turned to manufacturing waterproof cable made from tar coated copper.?æThis cable was used to run telegraph wire under lakes and ponds.
Sailors are often referred to as "Jack Tars" due to the term "Jack," which was a common nickname for sailors in the 17th and 18th centuries. The word "tar" comes from the use of tar in the maritime industry, where it was used to waterproof ropes and ships. The combination of "Jack" and "Tar" effectively became a colloquial term for sailors, reflecting their rugged lifestyle and connection to the sea. This nickname has persisted in maritime culture to this day.
On the sailing ships, a pall was a heavy canvas cloth covering, sometimes coated with tar to make it waterproof.
If you are referring to the derivitive of the opium poppy called "tar," it certainly is.