Best Exterior Caulk For Hardiplank Siding

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Best exterior caulk for hardiplank siding. Yes they do. It is best to avoid a fast dry acrylic caulking for exteriors use. 254 mm on overlap NO CAULK FIGURE 1.

Higher or a Latex Joint Sealant complying with ASTM. For regular Hardiplank lap siding the kind you paint AFTER installation caulking at butt joints is optional. A high quality paintable caulk is recommended.

The thing about hardi is that it is a great surface to paint but caullking joints tend to fail faster. Things to Take Note Of During a James Hardie Siding Installation. Wherever Hardie siding meets a trim board the company recommends you leave a 18 gap between the siding and the trim and apply a 38 bead of approved caulking to protect and seal the edge of the siding.

In this how to segment we talk about the proper way to use exterior caulking and get the job done clean and correct. Our instructor John is rather funny i. Joint flashing is recommended for all.

Dap 18128 55-ounce Alex Plus Acrylic Latex Caulk. Few years ago Hardie said no caulking at butts around here. The only other alternative would be Dap Sidewinder as its based on the same properties a mineral spirits base does not clean with water.

The company does not recommend caulking over ColorPlus products for aesthetic reasons. Some manufacturers do not require the metal flashing therefore we caulk the butt joint to keep the pieces together and also prevent moisture. Deterioration of the caulking in the joint has become a maintenance issue for home owners over time.