Expansion Gaps Smooth Stucco Siding

Asphalt saturated fiberboard designed for expansion joints.

Expansion gaps smooth stucco siding.

Unsanded caulk has a smooth appearance and texture. The pro s first step will be to power wash the home. Stucco is not an option. This means that the boards should be touching each other when they are installed.

This affected most of the fiberboard between the patio and house. Caulk can be either sanded or unsanded. The process of smoothing stucco in most cases there s no need to remove the old stucco to create a smoother surface. It recommends filling the gaps with caulk.

Sanded caulk has particles in it that help it adhere to wet surfaces and expand in larger gaps without cracking. Wipe away any excess caulk. A stucco pro will simply apply a new texture over the existing one. James hardie recommends that a slip sheet joint flashing is installed behind each butt joint in the siding.

Siding butt joint treatment. 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. Use sanded caulk any time you use sanded grout and in joints 1 8 inch or wider. Do not deliberately leave butt joint gaps in fiber cement lap siding and that they do not recommend caulking field cut butt joints in their board type fiber cement siding products.

Wet your finger and gently wipe the caulk in the gap to give it a smooth rounded appearance. Hardie boards should be joined in moderate contact. 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. Both certainteed and jameshardie as of september 2008 have made clear that siding butt joint gaps should never be made that is.

But i just read an fhb article working with fiber cement siding from june july 2001 that states that on walls 12 or longer hardie recommends you leave 1 8 gaps between the lap pieces and the trim and between the butt ends of adjoining lap pieces to allow for expansion. There is no need to leave a gap for expansion. It has a grainy texture and appearance. Is there a smart trim type 1 x 8 or 1x10 material with a rabbeted top and bottom to allow a flat installation and provide the proper drainage at the horizontal joints.

One reason for the porous nature of the gap can be attributed to old asphalt saturated fiberboard that had fallen apart. The clients and their architect are also looking into possibility using sheets of fiber cement 4x8 to provide the low maintenance and smooth look but.