James hardie building products provides installation wind load information for buildings with a maximum mean roof height of 85 feet.
Proper flashing at the bottom of hardie siding and tyvek.
After all the reading i have done i m still unsure of installing the hardie lap siding directly to the tyvek.
1 install a strip of felt across the bottom of the rough opening and fold the top of this strip inward sill flashing 2 install splines along the sides of the rough opening overlapping the sill flashing with bottom edge of splines 3 install window unit 4 wrap entire building tuck lower wrapping under sill flashing.
Cover with cap flashing.
One of the things i noticed in the destructions is hardie s recommendation to use joint flashing for the color plus line.
I have several choices.
And be capped on top with either a preformed metal drip cap or a custom flashing installed under the sheathing wrap.
For information on installations above 60 feet please contact jh technical support.
Jamb flashing should extend at least 2 inches past the exterior trim because there will be a vertical joint where siding meets the trim.
If the kick out and step flashing can t tuck behind the siding screw on cap flashing to cover it then caulk along the top.
Or put at least one layer of grade d paper over the tyvek then the siding.
Install the hardie over the tyvek tyvek says it s fine.
Nail it to the sidewall or glue it if nailing isn t possible.
Did not attach the hardie board to plywood so there s just the house frames them tyvek paper then the hardie board nailed to the frames.
Did not overlap or kick out that bottom board it s actually flush with the stucco.
Slip in the flashing.
Cut a slit in the sheathing wrap along the entire length of the water table and slip the upper leg of the flashing under the wrap see illustration.
This bridges the framing sheathing wrb and trim joint.
Minimum standard panel design size is 12 x 16.
The water table should overlap the foundation by about 1 in.
Lift the bottom shingle and slip in the kickout flashing.
Hardie says it s fine.
Or install a rain screen using say 1 2 x 1 1 2.
Hardie plank joint flashing tyvek or not questions for experienced installers i m just about to install my first hardie fiber cement job am bidding a second one.
