Drywall taping an important process Published: Jul. 16, 2009, 5:59 p.m.

First, the drywall finisher applies a thin layer of joint compound, also known as mud, over the seams and corners of the drywall panels, using a taping knife or a taping machine.

Drywall often shows age lines at the seams. After a while, with years of humidity, air conditioning and heat being absorbed by the drywall, the seams tend to open a bit and even some nails may pop ...

Adhesion Mesh drywall tape has a tacky backing, allowing it to stick to the wall on its own. Paper tape needs to be embedded in a layer of joint compound.

As for the cracking and visual seams, the home inspector writes- “Drywall does not appear to have been primed.” Boyd disagrees with that assessment.