You're half way there already. Add a 4" cement/fiber-mesh bottom. Let it cure per instructions, then fiberglass it using vinyl ester resin and one ounce Owens Corning chopped strand mat. Sand the fiberglass walls, then apply two new coats of swimming pool gel coat to the entire pool. Every 15 years thereafter, sand and replace the gel coat on the entire pool.
Well first of all there is no such thing as a fiberglass pool. You can have fiberglass walls instead of steel but your pool is still vinyl because you need a liner. These are the usual combinations of inground pools. Sand floor, steel walls, vinyl liner Sand floor, fiberglass walls, vinyl liner Vermiculite floor, steel walls, vinyl liner Vermiculite floor, fiberglass walls, vinyl liner Concrete floor, steel walls, vinyl liner Concrete floor, fiberglass walls, vinyl liner Concrete floor, concrete walls, no liner Concrete pools have to be painted with epoxy paint or if you want tile installed then usually you plaster over the concrete. Now a days 3 and 4 are the most common inground installs. 1 and 2 are usually pools that are 30 + years old although you can still have them done that way. In South Alabama the cost of a 20 *40 vinyl pool will cost around 18 to 22 thousand
Fiberglass doesn't rust and can be repaired if need be. steel is much harder to do anything with once things start needing repairs
There are two parts to all vinyl liner pools, i.e. the walls, the bottom. The walls are nearly always the first 3 1/2' down from the top, and the bottom is the rest of the pool. In other words, everything below the wall, even the vertical part below the wall, is called the "bottom" along with the flat horizontal section. The walls cannot be dirt. They can be galvanized steel, fiberglass, concrete, or even wood (cypress). The bottom can be dirt, but a mixture of cement/vermiculite is highly recommended. This will help maintain the dimensions of the pool and will not wash away, or erode, as time passes. A dirt bottom can work in an extremely dry climate which sees no rain or snow on a year round basis. But even then, rodents can cause serious problems when the bottom is dirt. I recommend fiberglass walls with a cement/vermiculite bottom. -Good luck.
There are two parts to a vinyl liner pool: the bottom and the walls. The walls are the first 3 1/2' down from the top, all the way around the pool. There are many different types of walls including galvanized steel, aluminum, fiberglass, polymer and concrete. The bottom, everything below the first 3 1/2' down, can be made from cement, a cement/vermiculite mix, a sand/vermiculite mix, a cement/sand/vermiculite mix, or just plain sand. What is used under the pool liner depends upon the preference of the pool builder and the specifications of the homeowner or contractor.
It would depend on what kind of an in-ground pool you refer to, i.e. gunite, concrete, block, vinyl liner, wood, or fiberglass.
Regarding pool: a liner refers to an in-ground or above ground pool that uses a Vinyl Liner to hold the water. The liner is a custom fit to the shape of the pool, in-ground pools utilizes steel, or composite walls to hold the earth back and the floor can be a thin concrete or a sand bottom.
Steel walls are currently the lowest quality wall for a swimming pool, with the exception of Cyprus wood (if still available). Concrete (not gunite) is superior to any other wall, but a pool with concrete walls generally also has a concrete bottom. In other words, it is a concrete swimming pool. The most popular wall today for vinyl liner pools is fiberglass and, with the possible exception of concrete, is the best possible choice.
Fiberglass is mainly used by builders as an insulator between 2 walls. It fills in a gap. Fiberglass is horrible to touch and will give you a terrible itch for days.
You need to remove the old liner. Leaving the old one will cause the new one to retain moisture between the layers and rot the new vinyl and rot the walls of the pool.
Yes, in batts or loose, fiberglass is an excellent insulator. -The batts are made in sizes to fit right into walls with minimal fuss.
Because that's the most efficient and cost-effective way to insulate house walls.
I think it has something to do with maintaing the temperature in the home. Ventilation. Also, it prevents humidity from destroying the interior of walls.