Flat Roof Lead Flashing Details

The flashing of the head of a batten seam roof at a wall is shown in this detail.

Flat roof lead flashing details. Roll detail at drips and abutments 41 flat roof roll and drip intersections 42 pitched roof joints and fixings 43 pitched roof intersection with valley 44. A copper receiver holds the counterflashing at its top edge. The top of the roof pan is formed into a bread pan whose upper edge is just above the finished batten. If the lead is cut any longer it could lead to splitting of the lead work due to expansion and contraction.

Lead flashing needs to be a minimum of 75mm up the wall for a standard 30 degree lean to roof against a brick wall the lead on the roof should be minimum 150mm. The extra kick at the bottom of the face directs run off away from the structure. When fitting flashings they should overlap by a minimum of 100mm. Ideally this should be 150mm or a minimum of 75mm again common sense and exposure applies.

It is shaped to prevent wind lift. Flat roof flashing this could virtually be any type of flat roof the upstand of the flat roof covering is overlapped by the drop of the flashing. Our basic fitting guides are designed to assist installing rolled lead sheet in a range of roofing applications including flashings valleys gutters and flat roofing. Although fixing near the base of the clip is not recommended for.

Wood core roll as used on ridges hips and flat roofing wood core roll is to be used to allow for the expansion and contraction in lead sheet and flashing. This drip edge flashing provides protection from water damage along the eaves and rake of a roof. Copper flashing is locked into this edge and extends at least 8 up the wall. More product details close.

For flat roofs the lead which pays on the flat roof should be at least 200mm. To install the roof wall flashing above the builder bent the top edge of the flashing into a 90 degree lip about 2 cm in width. Wood core roll is used for joining bays of lead roofing also on steeply pitched roofs and lead cladding where a bold joint appearance is preferred. Gibraltar drip edge flashing can be used with asphalt shingles or metal roofing panels.

That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above. Clip strength is increased the closer the clip is fixed to the free edge of the lead sheet or flashing. Roofs peel off from the edges so it is critical to hold them tight with the roof deck sealed on the outside we turn to flashing the edges with metal and membranes metal drip edge flashing image details roofing wrb flashing.