How To Stucco Over Wood Siding

Since stucco is usually applied in three layers over a metal reinforcing mesh you often end up with a one inch layer of stucco which could effectively add a one hour fire rating.

How to stucco over wood siding.

New siding can be installed over existing exterior coverings in some cases. Step 1 add felt. Plywood and stucco are two of the staples of home construction but when used incorrectly they can work against each other. Cover the wood siding with roofing felt nailed in place with roofing nails.

For stucco application over wood there are a number of stages to a successful stucco application. Another problem with adding stucco over existing siding or exterior finish sheathing like t 111 is you are adding about 3 4 1 inch new thickness which then sticks out beyond your window and door frames causing sealing and drainage and aesthetic issues. In fact stucco makes a great building surface that is durable fire resistant and can be applied to just about any surface whether it be brick wood or concrete. For homes with stucco exteriors a framework of wood furring strips must first be installed to create a level surface which suspends the outer layer of siding over the inner layer so that water cannot settle between the two and cause rot and erosion.

To install siding over the stucco you ll have to first attach furring strips to the exterior walls. When applying it over sheathing you first must cover the wood with a double layer of grade d waterproof building paper and then fasten metal lath to the structure to support the stucco. You can apply stucco over wood sheathing masonry or brick. Prep the wall to keep bits of stucco from falling between the new siding and the old stucco scrape away loose or crumbling debris from cracks in the stucco and roughly patch the cracks with mortar.

Before applying stucco over wood you will need to attach a layer of roofing felt to the surface followed by a sheet of wire mesh then apply a thin layer of stucco to the wire mesh surface as a base for the final coat. Be certain to follow them for the best results. You can change the appearance of the stucco wall surface by covering it with a wall of siding. Allow this base material to harden for one hour and scratch lightly with a plaster rake.

You can t apply stucco directly on to the wood. Google the following search term for more info on the issue stucco over wood siding. The wood needs to be properly covered so it can support and take the weight of the mortar used for stucco. How to install siding over stucco walls.

This is especially true in climates. Applying stucco over your existing wood siding is a great way to cover up wood that is looking old and worn or simply to give your home a new look. Applying stucco to plywood siding. You then apply three separate coats respectively called the scratch coat the brown coat and the color coat.