January -2023

"Stucco and the Blind Man" Chapter 5

Self furring lath for stucco.

Please click here to read: Chapter 5 -Mortar and sand for stucco

Leaking house.

Who could build a house like this ?

This is the back side of lath and stucco on metal studs. Water is freely running into the house. This is the day after a pouring rain. There is no vapor barrier, sheathing or any barrier to stop the water.
Leaking house.
A view of the standing water on the floor. This house is built to leak and fail. Flashing on the porch is non existent, porch is angled toward the house instead of away, window flashing is backwards, and on and on.

Why don't ferrocement boats leak ?

Ferro cement boats are different. Ferro cement boats are high strength portland cement mortar on a heavy metal armature. Ferro cement boats are usually a minimum of 5-6 inches thick, and thicker in the curves and shapes. The finish on cement boats is troweled smooth, sealing most of the pores. Water does penetrate ferrocement boats for a ways. and stops when the pores are filled. In other words, the wetter it is, the tighter is is. The standard thickness of cement stucco is about 3/4", and is much thinner in one coat stucco applications.
I have never plastered a boat, but I have talked to people that have.

Non-Profit Links

Technical Services Information Bureau

A non profit resource for plaster and stucco.

Portland Cement Association

Standards for Installation

Your leaking house

Your leaking house is an excellent source of information. Ask Carl Brown, Mr. Bad Stucco himself

American College for the building arts

Old building trades are studied and preserved

Northwest Wall and Ceiling Bureau

Wealth of information about lath and cement stucco. Their stucco manual is $100 and well worth it.

Stucco Manufacturers Association

Excellent source of information, including training courses for certification.

American Plywood Asscociation Video

A great illustration on why to space plywood or OSB.

Incredible videos from Vietnam.

A series of videos showing amazing stucco.

Copyleft: Permission is granted to copy, distribute and/or modify this document under the terms of the Creative Commons Attribution 4.0 International license.
Thanks for reading all these years.