Stainless steel with a hollow air core vacuum sealed is the best. Stanley is one of the best.
Bubble wrap is better because it contains air, which is a very good thermal insulator.
A sloped roof allows water to flow go off the roof. Otherwise, the accumulation of rain water on a roof and its weight could exceed the ability of the roof to support it and might collapse the roof. The accumulation of water would also decrease the ability of the covering material to keep water out of the inside of the structure.
keep water off of it.. that is about as much as you can add to it
Take it out of the ice chest. A plastic insulated cooler can be used to keep things warm. Warm the cooler by running hot water into it. Empty the water after a couple of minutes. Wrap the item you want to keep warm in newspapers or towels and place it into the cooler. You can also use something that can be warmed, such as the combination ice/hot packs, to pack with the item in the cooler and it will help it stay warm longer.
a presure washer is the best way to clean concrete, keep in mind to keep moving the presure washer and not let it just set in one spot for to long.
thermos cup
A thermos is only good because of the material it is made with. A thicker material will keep whatever is inside cold or warm longer.
keep it in a hot place
A vacuum is a good insulator so a "thermos" bottle will keep liquids 8or solids) cool for a while.
They kept the liquid nitrogen in a thermos so it stayed cold. They used a thermos of oil to keep the sodium from contacting air and water.
The best way to do so be be to use a good thermal insulator. A thermos flask would suit this purpose.
This will depend upon the Thermos, but in general a thermos will keep hot liquids hotter for longer. This is because the Thermos has stronger insulating properties.
A Thermos/vacuum flask is probably the best for small volumes of hot water (1 - 2 pints) After that any receptacle that is well insulated will maintain the temperature for a limited time.
They are closed by lids that are very secure, and made out of hard material. Also the inside will keep the drink warm inside due to the way the material was made.
Using a Thermos would be a best option. It serves kind of isolated system thus trapping the heat within it for longer period.
put it in a freezer
A thermos bottle (Actually a thermos container, which has a wider lid) will work.