H Flashing Siding

This color matched 7 1 4 inch h molding joint covers and protects butt joints and elegantly provides an expansion joint to help prevent buckling or distortion.

H flashing siding.

There s no need to worry about gaps between your siding h molding s provide a complete finished look. Joint flashing butt joint horizontal lap treatment june 2014 james hardie does not. Critical component to protect your home s structure from water. This has proven problematic over time as caulking the joint results in unsightly surface appearances due to the different textures as well as resulted in failure of the caulk joint and associated.

Install the first length of z flashing. We point out that retrofitting these products while a nice idea may be tricky jamming the h up under nailed lapped siding above and will still be visible even perhaps leading to color differences as the two materials flashing. This h molding joint eliminates the need for caulk and has an authentic woodgrain appearance with the durability of fiber cement. We tried a sample h flashing product too short for actual use and found it was difficult to install and risked cosmetic damage to the siding.

Flush the end of the flashing length with the wall corner and secure the flashing to the framing with an 8d nail at each wall. A common problem with cement board siding products and some other types of horizontal lap siding is that older installation guidelines called for caulking the joint instead of flashing the joint. James hardie also does not recommend applying caulk to the horizontal overlap between siding planks see figure 2.