Internal Gutter Fixings

Internal gutters also known as box gutters are seen as an easy solution to the collection and disposal of roof water.

Internal gutter fixings. Assemble in a similar manner to external corners. Rafters 4 1 ridge radius end rafters 8 9 4 2 jack rafter connection 9 4 3 gable end rafter 10 4 4 standard valley rafter 10 4 5 drop valley rafter 11. Internal gutters must be continuously supported on timber boards treated to h1 2 or on ply treated to h3. E2 as1 specifies no end laps for membrane lined internal gutters and that metal gutter laps are welded.

Secondly choose the profile you want as each will offer a slightly different aesthetic depending on the look you want and the style of the property. Design for a 10 minute rainfall intensity for the location with a recommended minimum design intensity of 200 mm hour rainfall intensity is for a storm with a 10 probability of occurring annually. There must be no fixings in the bottom or sides of the gutter. They are installed internally at a maximum of 1 2 metre intervals and are not visible on the external face of the gutter.

Figure 4 overflow located below any potential overflow into building from e2 as1. Reduce the top rib for 25mm to allow for a slip joint. Cut gutter ends at 45 as shown. Figure 2 membrane roof and gutter design.

When choosing what type of gutter you want consider material initially. To establish the position of the running outlet or stopend outlet hang a plumb bob from the fascia so that it hangs directly over the drain. E2 as1 8 1 6 1 requires all internal gutters to have a minimum 1 100 slope. Make sure the fall is set towards your downpipes with a stringline then install the clips into timber fascia using flat headed bugle screws.

135 degree gutter angle internal system plus in black part of the universal plus rainwater system 128mm x 88mm designed to aesthetically complement any property the universal plus system is ideal for use on larger residential buildings smaller commercial premises and conservatory roof applications as the system is sturdier due to the thick gutter extrusion. However significant inconvenience damage repair cost and health issues may occur if water from the gutter gets into the building structure and or the space below. To make internal gutters as safe and durable. This bulletin outlines the requirements of e1 as1 and e2 as1 and gives design parameters to minimise the risk.

Cut the gutter ends at 45 as shown. Internal gutter straps hold the face of the quad guttering into position. Pvc rain gutter is more cost effective when compared to metal and is easier to install than metal. Eaves beam 3 1 fixing the eaves beams 6 3 2 fixing the gable support platform 6 3 3 joining the eaves beam 7 4.

Use a pencil to mark the positioning of the outlet and its fixing holes onto the fascia ensuring that it is no more than 50mm below the level of the roof.