Window Head Flashing Nz

Window association of new zealand page 4.

Window head flashing nz.

0800 80 80 85 consumer helpline. Page 49 step d1 sill tray flashing 50 step d2 position the unit 54 step d2a position the unit full height 55 step d3 fixing 57 step d3a fixing full height 58 step d4 air seal 59 step d5 head flashing 60. Head flashing a metal head flashing with a 15 slope is installed against the wall underlay and over the window frame to provide 10 mm cover to the face of the window frame. Head flange with kick out hook to flashing upstand head flashing with stop ends at each end direction of rake 15 o cross fall angled end to head flashing to direct water flow to exterior pointers when detailing a raked window head the key elements to the detailing of a raked aluminium head figure 2 that overlaps the cladding are.

Code 24a is a 20mm window head cavity closure flashing with 5mm drainage holes 15mm crs this flashing goes with code 24b to make a two piece window head flashing system. Two options for head flashings. 04 237 1170 building industry helpline. A drainage and ventilation gap of 5 mm must be left between the bottom of the cladding above the flashing and the top of the sloped flashing.

A metal head flashing with a minimum 15 slope is installed against the wall underlay and over the window frame to provide 10mm cover to the face of the window frame figure 1. Window installation details in e2 as1 show two options for a head flashing to a conventional aluminium window. As nzs 4284 tested using flashmans flashing system in conjunction with flashclad s cladding systems. Builders and window suppliers should use the nearest fit size of an extruded head flashing to suit each job.

Where the front downturn of the head flashing fits firmly over the top window flange for example e2 as1 figure 85 a for cavity weatherboard figures 1 and 2. A gap for fitting tolerance is required. Inadequate gap between flashing and cladding. Fibre cement sheet 47 eifs 48.

If a head flashing is so tight that it is difficult to engage the window frame it will risk distorting the head flashing and damaging the window frame coatings. This is what should happen. Our test was conducted without the reliance on sealants foams or plastic back flashings achieving 4 500 kpa 312 kph wind speeds. Check out our range of window flashing accessories products at your local bunnings warehouse.

Flashing in two pieces with a poor or no junction seal. Code 24b is designed to work in with code 31 window side flashing. 0900 5 90 90 calls cost 1 99 min gst.