First it was the roof, then the paint, then the plumbing.

NEWYORKER: Mr. Bones

The couple removed and replaced the home's parabola-shaped roof, stripped away dozens of layers of paint, ripped out a prior owner's black Formica bathroom, reverted the master bedroom to Mr. Lautner's original floor plan and redid a guest bedroom.

WSJ: Modern Homes: Reviving a Hollywood Icon

The sources of these toxins and poisons are often easy to isolate: a leaking roof can cause mold, houses built before 1978 may have lead paint and plywood can off-gas formaldehyde.

FORBES: Magazine Article

The process is closely monitored to ensure even paint application, particularly where the two sides meet on the bonnet, roof and boot lid.

FORBES: A Private Tour Of Aston-Martin's Factory