As long as the window frame projects at least 1 inch beyond the sheathing it s possible to install your hardie siding right to the window frame leaving 1 8 clearance from the sides and sill and applying a bead of approved colour matched caulking.
How to install siding around windows and doors.
Measure the width of the piece you need to cut by holding the length of siding against the window and marking the edge points on the panel with a pencil.
Measure from the locking tab of the siding below to the undersill trim to determine the depth of the notch.
Installing exterior wood trim around windows and doors.
And that s how we got our exterior ready for some siding.
Now any water that runs inside the j channels will come out on top of the siding and out the weep holes designed for this purpose.
Place the piece of siding to be installed under the window along the bottom edge and hold it where it will be located.
Maneuvering long pieces of vinyl into place can be tricky.
Measure the distance from the inside top of the j channel to the locking tab of the course below and subtract 1 4.
Lock the notched.
Next comes another layer of building wrap installed like the first layer.
Position the siding to be notched below the window.
After the unexpected porch roof project the unexpected entry doorway threshold project.
Mark it on each side of the window allowing an extra 1 4 in.
Cutting and installing the siding 1.
There s nothing in the james hardie installation instructions that requires any trim at all for installation around windows and doors.
Gap on each side for expansion.
Install the trim just under the drip cap.
Install siding around windows.
Cut a piece of flashing out of felt paper and install it at the bottom corners of the windows before you install the side j channels.
Overlap the flashing onto the row of siding just below the window.
When you get to a window you will need to cut sections from the panels directly above and below it to fit.