Frame Roof Valleys Using Battens

If you begin with accurate as built measurements and use a construction calculator to do the math you can cut all of the rafters for most roofs on the ground in just one shot.

Frame roof valleys using battens.

The spacing of the battens depend on the type of roofing material and are applied horizontally. The profile of the batten allows for nesting making them easier to store carry and handle. Set the first batten at eaves so that the first course of tiles overhangs the gutter by 45 to 55mm or into the centre of the gutter whichever is the lesser distance. While decking is not required for a metal roof and is often not used for shops barns or other outbuildings if a metal roof is being put onto a home or a garage the use of decking is common.

Metal roof battens have been in use in australia for around 40 years. The valley area of a roof the straight lines formed when two different planes of the roof meet is a critical area that handles a tremendous amount of water run off. Valleys are typically found where gable dormer roofs meet the main roof or when a house has angled wings or additions where two roof sections in different planes meet. Roofing battens or battening also called roofing lath are used to provide the fixing point for roofing materials such as shingles or tiles.

But it doesn t have to be. If you haven t seen one before a tile elevator s a long narrow conveyor belt kind of thing. Manufactured from hi tensile zinc al steel the battens remain straight and consistent throughout their long life. Measure each section of the roof from side to side parallel to the line of the fascia board.

The battens are made in approximately 3 0m lengths to allow for cladding creep along the width of the roof. This roof valley is a perfect example. Ensure that full support is provided to fix the ends of the battens at hips and valleys. Once the sarking s laid down the battens are carefully nailed on over it and a tile elevator is usually set up to transport the tiles safely up onto the roof.

Generally battens should be parallel to the eaves and ridge lines. Metal roof battens may be used with steel or tile cladding. Configuring your metal roof batten layout access the roof using an extension ladder. Framing a complex roof is one of the trickiest parts of home building.

Metal roof battens offer extraordinary strength to weight values and are lighter than timber battens. The next batten is to be placed with at least one mount flange overlap figure 3 making sure the next batten sits down flat in the existing roof cladding valleys. The plywood covers the entire roof and is solidly attached to the rafters providing a sturdy base for both insulation and metal roofing panels. Shingles and tiles are affixed using the battens as spacing.