The boral roofing cad details below are complete drawings that can easily be downloaded customized for your residential or commercial project and included in your cad library for future use.
Tile roof valley detail.
Drip edge metal valley flashing dormer chimney and kickout flashing are types of roof flashing that shed water away from the connections between roofs walls chimneys and other building assemblies.
Ensure that continuous support is provided for ends of tiling battens on each side of valley.
One of the areas of a pitched roof most prone to leakage if not constructed properly is the valley.
Depending on the length of the valley and the tributary area installers may flare or gradually open the width of the valley tile cut.
Boral roofing cad details for roof tile.
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.
Tile installers are craftsmen and each develops his or her own approach to valley details.
The details shown are for roof intersections resulting in valley slopes of at least 4 1 2 per foot.
Copper is recommended for valley flashing.
A common misconception is that the mortar bedding is there to prevent water access.
If slate or tile is used for the roof covering 20 oz.
Note that it is not necessary to mechanically fix the valley tiles.
Note that it is not necessary to mechanically fix the valley tiles.
Cut adjacent tiles and tile and a half tiles so that valley tiles course in and fit neatly.
Cut adjacent tiles and tile and a half tiles so that valley tiles course in and fit neatly.
Experienced installers may make a cut dog ear to the point of the tile that is overlapped by the succeeding row.
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Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley.
Cover valley with a strip of underlay not less than 600mm wide underlapping general underlay.
It is an area where water is directed towards rather than away from therefore correct detailing and construction is essential.