Bs en12588 replaced bs1178 in august 1999.
Pitched roof valley gutter detail.
Important 4 this booklet is a guide to the correct detailing and fixing of lead sheet flashings.
Architectural drawings 3 not to scale all technical files in this manual are subject to our disclaimer see page 1.
Part 1 a guide to roof construction covers an overview of flat and pitched roofs.
Catchment area must be no more than 25 m gutter must be at least 250 mm wide.
Proprietary gutter or valley systems.
Valleys and the components used should.
If you can t find it here give our friendly customer services team a call on 01752 692760 and they ll be glad to help you.
Where the roof pitch is 12 5 or greater the.
Gutter catchment area must be no more than 16 m.
To get the most out of it is helpful to also read parts 1 and 2.
We use lots of sketches and photos in our building surveys.
Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings.
The width of the open valley is dependent upon the roof pitch and the volume of water expected to drain into the gutter.
Roof problems valley gutters.
Valleys shall have suitable weathering details including flashings to resist the passage of moisture to the inside of the building.
Flashing a humpy old roof valley.
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.
Roof valleys are like gutters with a steep pitch but the stakes are higher for valleys than they are for gutters in a previous video we covered how to flash roof edges before shingling.
7 2 21 valleys and hidden gutters.
Part 3 of the four part guide to roof construction covers pitched roof detail.
1stassociated co uk surveyors can provide help and advice with regard to property reports building surveys structural surveys independent valuations structural reports engineers reports specific defects report home buyers reports or any other property matters.
Maximum catchment areas for valley gutters are given in table 8 of e2 as1 for minimum roof pitch and gutter widths.
We ve arranged our superb selection into grp valley troughs for tiled roofs and roof valley solutions for slate roofs.
Looking for something specific.
Where the roof pitch is between 8 12 5 the.
Flashing a humpy old roof valley requires a.
Calder lead sheet and flashing conforms to the new european standard.
Table 11 gives the minimum recommended valley widths for different roof pitches and plan areas.
