Quikrete has a stucco repair product that is textured to match the surrounding stucco and can fill gaps up to 1 2 an inch wide.
Expansion gaps smooth stucco siding.
This affected most of the fiberboard between the patio and house.
Caulk can be either sanded or unsanded.
James hardie recommends that a slip sheet joint flashing is installed behind each butt joint in the siding.
This means that the boards should be touching each other when they are installed.
Use sanded caulk any time you use sanded grout and in joints 1 8 inch or wider.
Gaps are normal and should be expected since dissimilar materials expand at different rates.
Sanded caulk has particles in it that help it adhere to wet surfaces and expand in larger gaps without cracking.
But on the exterior gaps in stucco siding can lead not only to further degradation of the stucco but also to a host of nasty issues mold growth for example or pest infestations.
The process of smoothing stucco in most cases there s no need to remove the old stucco to create a smoother surface.
This includes butt joints and places where the siding terminates vertically against windows doors and other fixtures.
Clean out the crack using a scraping tool and a wire brush so that there is no loose material and the caulk has a good surface to bond to.
Wet your finger and gently wipe the caulk in the gap to give it a smooth rounded appearance.
A stucco pro will simply apply a new texture over the existing one.
Hardie boards should be joined in moderate contact.
Unsanded caulk has a smooth appearance and texture.
The pro s first step will be to power wash the home.
Wipe away any excess caulk.
Fill any low spots or remaining gaps with additional caulking until the gap.
If there are minor cracks in your stucco this is a project that most san francisco homeowners can tackle if they want to.
Asphalt saturated fiberboard designed for expansion joints.
After that the pro will apply a new stucco base coat.
There is no need to leave a gap for expansion.
For these small cracks get a flexible paintable exterior grade caulk.
The manufacturer requires a 3 16 gap at the end of each piece of siding.
It has a grainy texture and appearance.