Best caulk for hardie siding

Caulking around windows, doors, eaves and trim edges gives added insurance that leaks will not occur. It’s got good adhesion and expands and contracts. But you are correct that it is very difficult to paint. Best caulk for Hardie Plank siding ? I am planning to install horizontal Hardie Plank lap siding and the Hardie info says use a latex sealant per ASTM C8or C9(Grade NS, Class 25). Can you tell me what gap you use between butt joints on horizontal lap siding and the best caulk for the joint?

Then, make sure the coating is completely dry before applying the nd coat. A professional exterior painting expert will use a spray application for a smooth, factory like finish. Pros and Cons of Painting Hardie Plank. The house is in Dallas, Texas.

Thanks in Advance Lyle. I put vinyl siding on my own gables and it cost me $ 250. Six pieces of J-Channel, lbs. JAMES HARDIE is definitely the best of those 3. My suggestion is to use pre-finished Hardie shingle siding with VELCUM exterior caulking. If you are using any trim around the siding then MIRATEC composite is the best.

Secondly, if the structure or the sheathing beneath the siding was not properly installe then the siding. Does hardiplank require caulk at the joints? How to stain hardiplank siding?

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Big Stretch Acrylic Latex Exterior Caulking Sealant. I’m currently installing lots of Hardiplank prefinished siding. There are several different types of caulking on the market. Silicone, acrylic latex, solvent base elastomeric and butyl rubber to list the most common. It is best to avoid a fast dry acrylic caulking for exteriors use.

These are fine for interior millwork but not the best for exterior jobs. Watch this video to learn more about the butt joints on Hardie planks or lap siding. You can simply apply more caulk right over top.

It’s also recommended to use a cloth or rag ready to wipe up and smooth excess caulking before it sets on the siding. Trim boards that sit on top the siding. In the old days, the builder would install the trim, bring the siding up to it, and caulk the corner. What should never be caulked!

James Hardie also DOES NOT recommend applying caulk to the horizontal overlap between siding planks (see Figure 2). Manufacturer Certified Roofing Contractor Serving Whatcom, Islan and Skagit Counties.