From james hardie website.
Painting bottom edge hardiplank siding.
Also avoid caulking tongue and groove siding boards together.
The type of paint you use on hardie plank is important to ensuring the life of the paint project.
The other issue with james hardie dust is that it sticks to colorplus paint.
While paint does tend to somewhat glue these pieces together caulking them is never advised and can cause permanent damage.
Complete the paint job by applying a top quality 100 acrylic latex exterior paint that is recommended for use on masonry surfaces or one that is specifically made for use on fiber cement siding.
While it may seem like a good idea it will take longer than just painting everything because of all the required cutting in masking.
Top quality acrylic latex paints have superior adhesion so they will maintain a tight grip on the siding to help prevent early paint failure.
Fiber cement board lap siding repair guide.
Primed products if your james hardie siding was originally painted after it was installed on your home then check the original paint manufacturer s recommendations.
Fill a paint sprayer with exterior acrylic paint.
Leave a 1 8 gap between the siding and the trim and apply a 3 8 bead of approved caulking to protect and seal the edge of the siding.
Bottom of siding boards should not be caulked water is meant to exit through the bottom of each board.
Starter strips are easily made by ripping 1 in.
Finishing james hardie primed siding products s 100 august 2014 22 james hardie developed the first factory applied primer for fiber cement siding.
Just scrape and prime the.
Don t just paint the bottom edge.
Best kind of paint to use for hardie plank and fiber cement siding.
A professional exterior painting expert will have many years of experience painting hardie plank and will know the right paint and tools to get the job done right.
Begin applying a coat of paint to the surface using smooth sweeping passes of.
Learn about the most common installation errors on james hardie siding in.
Our distinctive gold primer for hz10 products and green primer for hz5 products are climate tested and engineered to enhance the performance of paint on james hardie fiber cement siding.
Pieces of hardieplank siding from full or partial planks.
This article describes repair procedures for cosmetic or functional siding issues that may arise such as loose siding wind damaged siding siding paint or coating failures and siding gaps especially gaps at fiber cement siding butt joints where lap siding is installed.
Hardieplank lap siding requires a starter strip beneath the first course to set it on the proper angle and to create a proper drip edge at the bottom of the siding.