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.
Frame roof valleys using battens.
But it doesn t have to be.
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.
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.
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.
The plywood covers the entire roof and is solidly attached to the rafters providing a sturdy base for both insulation and metal roofing panels.
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 battens are made in approximately 3 0m lengths to allow for cladding creep along the width of the roof.
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.
The spacing of the battens depend on the type of roofing material and are applied horizontally.
Shingles and tiles are affixed using the battens as spacing.
Measure each section of the roof from side to side parallel to the line of the fascia board.
Battens are not always used in a roofing system.
This roof valley is a perfect example.
Stratco roof and ceiling battens are light yet strong offering an economical alternative to timber roof battens.
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.
Metal roof battens have been in use in australia for around 40 years.
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.
The profile of the batten allows for nesting making them easier to store carry and handle.
If you haven t seen one before a tile elevator s a long narrow conveyor belt kind of thing.
Metal roof battens may also be used with steel or timber support framing.
Manufactured from hi tensile zinc al steel the battens remain straight and consistent throughout their long life.
Generally battens should be parallel to the eaves and ridge lines.
Configuring your metal roof batten layout access the roof using an extension ladder.
