Caulk Wood Plank Siding Before Painting

Under normal circumstances you can apply caulk before priming.

Caulk wood plank siding before painting.

If doing so exposes bare wood recaulk all cracks between any two nonmoving materials. This is the beginning of rotting wood water stains mold and mildew and possible flooring damage. Unfortunately it will not stick well to stained surfaces. 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.

Some specialty caulks may need a primer before paint is applied but most caulking is paintable. This allows for the caulk to get in and fill the gap correctly. The nails holding up the siding should not be caulked. Joe i think your image is specifically for colorplus where they don t recommend caulking.

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. Scrape away any peeling paint adjacent to the caulked areas. Caulk adheres very well to clean bare wood and vinyl. The different kinds of caulking for your home.

This can cost hundreds to thousands of dollars to eradicate. For caulk that will be painted over a latex caulk should be used. However if you re working on certain surfaces the caulk will not stick without a primer base coat. Similar to paint previous coats of.

For best results use caulks that comply with either astm. Is the old caulking removed before new coats are applied. This from installation instructions. Don t caulk the horizontal joints on siding where the siding courses overlap.

Caulk should dry before painting over it otherwise it can cause new paint to crack and warp. For regular hardiplank lap siding the kind you paint after installation caulking at butt joints is optional. Basically any crack on the exterior of the house should be filled. Let the caulk cure for a few days before power washing the exterior.

Unlike similar sounding silicone caulks siliconized acrylic caulks can be painted so they enhance the finished appearance of the paint job. Sometimes the old caulk in the siding joint is cracked and you need to cut the old caulk out with a razor knife. 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. A high quality paintable caulk is recommended.