Be sure the flashing overlaps the siding course below.
How to flash fiber cement 4x8 siding panels.
When installing fiber cement siding always leave a gap at the ends of each length of siding.
When installing fiber cement siding be sure to leave at least clear space between the siding and the flashing vertical siding should be installed and attached to the structural framing when a non structural sheathing gypsum board or foam type sheathing are used.
Leave a small gap at butt joints and fill.
Many finishes are available to emulate rough cedar wood planks or other textures.
Nails should penetrate through the sheathing and at least 1 into studs.
Do you have any suggestions for flashing a four foot vertical seam.
Install flashing at all end joints where two pieces of siding butt together.
Place all nails 3 8 inch from the hardiepanel edge and at least 2 inches from any corner.
Most fiber cement manufacturers make mounting blocks for lights electrical receptacles a c lines pvc venting etc.
Install a starter strip over the top of the z flashing and the trim block when required to shim gap.
Most panel siding is exterior grade plywood either 1 2 or 5 8 inch thick or some hardboard such as cement fiber.
They re cheaper and easy to install and you can cut the proper size hole in a plastic mounting block with a utility knife or a snips.
Thanks for the great advice.
Fiber cement siding tolerances and gaps.
It can also be attached using corrosion resistant screws.
Apply caulk to the joint before and after installing the siding.
Lighting and electrical outlets install a piece of z flashing over the top of the trim block.
Jaime prefers to use the vinyl mounting blocks typically used with vinyl siding.
Fasten the panels to the sub structure with a pneumatic nailer and corrosion resistant nails.
I am going to install james hardie 4 x 8 fiber cement panels on the exterior parapet walls of my garage.
I m using z flashing along bottom edge but i haven t found any flashing for the 4 vertical butt joints.
Use hot dipped galvanized or stainless steel nails.