What Is Drywalling?
To begin with, if they built your house in the last 50 years.
Therefore, there’s a very good chance that they covered all the walls and ceilings with drywall.
Also, Drywall is essentially the modern alternative to hand-applied wall plaster.
And has all but replaced plaster in new home construction.
When it’s time to choose a material to cover the framing on your interior walls and ceilings.
The low cost and relatively DIY-friendly installation of drywall make it hard to beat.
Drywall and plaster (and plaster of Paris) share the same key ingredient: gypsum.
Gypsum is a natural, nontoxic mineral.
It is mined in 85 countries around the world.
Its chemical makeup consists of calcium, sulfur bound to oxygen, and water.
Gypsum crystals are ground into a fine, white powder.
Then this binds into a solid mass when mixed with water.
Besides mined gypsum.
They can make drywall from “synthetic” gypsum derived from flue-gas desulfurization (FGD).
Cleaning smokestacks in coal-burning power plants.
Tapered edges of drywall panels
A drywall panel comprises a gypsum core wrapped in several layers of paper (typically recycled paper).
During manufacturing, they pour a slurry of dense liquid gypsum onto continuous sheets of paper.
This is followed by a center layer of aerated gypsum.
And topped with another dense layer of gypsum before they sandwich more paper on top.
They extrude the sheets for a uniform thickness and to create a taper along the long edges.
It cuts short edges to create the various lengths of panels.
The face paper is usually white
Back paper is usually a light brown, similar to butcher paper.
A Brief History of Drywall
Lastly: Originally knew drywall as Sackett Board, after its inventor, Augustine Sackett.
It was patented in 1894 and was intended as a labor-saving substitute for traditional plaster.
In 1909, the US Gypsum Company (USG bought Sackett’s invention).
Which remains North America’s largest producer of drywall panels today.