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As a baseline, use flashings with the following measurements:
- Overall length should be +/- 15mm.
- Fold to fold/fold to edge distance should be +/- 2mm.
- Out of straightness should be a maximum of 2mm per one metre of length.
- Bend angles should be +/- 2°
Herein, what is flashing on a wall?
Flashing refers to thin pieces of impervious material installed to prevent the passage of water into a structure from a joint or as part of a weather resistant barrier system.
Also to know, how do you install flashing on a roof?
Here's how to do it right the first time:
- Cut step flashing pieces to be 10 in. wide and 2 in.
- Nail flashing to roof deck only. Nail through flashing into shingle, do not extend flashing above top of shingle and nail, or flashing will angle up.
- Cover tops of step flashing with house wrap and siding.
Types of flashing Sill flashing: Concealed under windows or door thresholds to prevent water ingress. Channel flashing: U-shaped channel used where the edge of a tile roof meets a wall. Through wall flashing: Directs water to weep holes by spanning the thickness of the wall. Cap flashing: Above windows and doors.