SBPCA product recommendations

• 60 minute grade 'D' paper, two layers over sheeting
• 17GA 1 ½" woven wire self furred fastened with staples
• Staple must have a 1" penetration into the stud
• Galvanized trims, weep screed, casing, control joints, reveals, and corners aids
• Portland cement is commonly used in the South Bay Area
• Mix ratio 1 plastic to 1 common with clean sand
• Finish, premixed by manufacture

Plastering Industry Methods of the Past
The SBPCA has seen many changes in the Plastering Industry over the past 34 years. The wall of the past had more of the normal home stress assumed by the plaster construction. Rather than stress walls and plywood sheeting, the plaster construction was designed to add significant stability to the structure. The plastering construction of the past included:

• The lather would run Line wire (18GA wire) up the outside of the wood stud all around the exterior of the house.
• Both the building paper and the 1" 20GA woven wire would be nailed to the stud.
• The nails would have a spacer to hold the wire away from the wall to assure a good key on the first coat (Scratch Coat). The Nail was called a Dawg's in the trades, and a furring nail to everyone else.
• The Line wire would support the paper when the plaster would apply the Scratch coat (first coat).
• The brown coat is the second coat and leveling Coat 3/8". Finish coat thickness varies from 1/16" to 3/16".
• The finish texture is what would lead to a 3/16 depth. Example: (Dash Texture, machine applied)

< Stories have been told of lather's pulling down a house while pulling the Line wire. Literally twisting the corners of the wood stud framing, collapsing the corner of the structure. The Lather's today only read about this system.