Caulk Wood Plank Siding Before Painting

This is the beginning of rotting wood water stains mold and mildew and possible flooring damage.

Caulk wood plank siding before painting. This can cost hundreds to thousands of dollars to eradicate. Under normal circumstances you can apply caulk before priming. For regular hardiplank lap siding the kind you paint after installation caulking at butt joints is optional. If doing so exposes bare wood recaulk all cracks between any two nonmoving materials.

There are several different types of caulking on the market. Similar to paint previous coats of. The different kinds of caulking for your home. A high quality paintable caulk is recommended.

This from installation instructions. Is the old caulking removed before new coats are applied. Some specialty caulks may need a primer before paint is applied but most caulking is paintable. Caulk should dry before painting over it otherwise it can cause new paint to crack and warp.

For caulk that will be painted over a latex caulk should be used. This allows for the caulk to get in and fill the gap correctly. Let the caulk cure for a few days before power washing the exterior. Basically any crack on the exterior of the house should be filled.

A diyer or a novice painter might attempt to achieve a cleaner look by caulking the siding nails but the nail is guaranteed to push the caulking material out within a few months. Caulk adheres very well to clean bare wood and vinyl. Joe i think your image is specifically for colorplus where they don t recommend caulking. Caulk and seal all cracks in the siding as well as any open seams joints or gaps with a quality acrylic or siliconized acrylic caulk.

Unfortunately it will not stick well to stained surfaces. Unlike similar sounding silicone caulks siliconized acrylic caulks can be painted so they enhance the finished appearance of the paint job. Don t caulk the horizontal joints on siding where the siding courses overlap. Scrape away any peeling paint adjacent to the caulked areas.

Old caulking that has failed and allowed water to migrate behind the siding can cause wood rot decay and if left undetected mold will most likely grow in your walls. The nails holding up the siding should not be caulked. If the siding joint is so tight that the caulk only bridges the gap it may split again. However if you re working on certain surfaces the caulk will not stick without a primer base coat.