Box Valley Gutter Construction

Concrete gutter construction methods and work procedure.

Box valley gutter construction.

This effectively states that all box gutters must allow for 30mm of freeboard which is from the overflow point eg. The depth shown in the calculations is at the upstream end. Because of this increased risk a box gutter must be able to cope with a 5 minute duration rainfall intensity and a 1 in 100 year. Required gutter slope 1 40 to 1 200.

Gutter catchment area must be no more than 16 m. Most times the box gutters just need a good cleaning and an application of acrymax roof coating for your gutters will seal them and extend their life indefinitely. There is always some confusion as to how the slope affects the overall depth. Contemporary k style gutters are replaced without any thought and old style box gutters etc.

Are removed in favor of contemporary gutters. Box gutter valley advice best way to form and cover. Catchment area must be no more than 25 m. Box gutters allowable width slope and length.

Box gutters are essentially placed between parallel surfaces as in a valley between parallel roofs or at the junction of a roof and a parapet wall. Discover and save your own pins on pinterest. Where the roof pitch is 12 5 or greater the. It may be lined with epdm rubber metal asphalt or roofing felt and may be concealed behind a parapet or the eaves or in a roof valley.

As a box gutter is usually located above a room or space in a building there is an increased risk that rainwater overflow could cause damage to the building or cause loss of amenity to its occupants. All domestic box gutters must be a minimum of 200mm wide and 75mm deep. These methods have been developed to improve construction quality and increase construction speed to finish large scale works in short period. Oct 14 2014 this pin was discovered by leah kitekt.

Gutter must be at least 250 mm wide. Where the roof pitch is between 8 12 5 the. 13 feb 2009 messages. Discussion in roofing and guttering started by romanabramovich 4 mar 2011.

Gutter may be a minimum of 160 mm wide. A box gutter internal gutter parallel gutter or trough gutter is a rain gutter on a roof usually rectangular in shape. There are several techniques used for the construction of concrete gutter. Rainhead overflow or specific box gutter overflow must be at least 30mm below the height of the back of the box gutter.