Sunday 1 February 2015

Different Types of Gutters

Half round gutters

As there are no square corners, half round gutters do not collect as much debris as other gutter types. They also empty quicker due to a larger water-carrying capacity.







Quad gutters










Square fronted gutters

These are designed to hide the ends of roof sheets and have slots in them to help the water overflow freely in heavy rain without entering the roof space.







Smoothline gutters

These are similar to half round gutters but they have a flat back and are fixed using internal brackets.






Gutter & Downpipe Problems:

Rusted or poorly installed gutters are common problems where easily recognisable signs of deterioration are paint bubbling or rust on the underside of the gutters and stains on the underside of eaves. If the problem is minor, small holes in gutters may be patched. 

However, indications of more disastrous guttering faults are stains around windows, sometimes down the walls and in the case of skillion roofs, even on the ceilings.

Such leaks are most likely to be caused by gutter overflow due to a number of reasons. They may be clogged with debris, or the slope towards the downpipe may be insufficient. Blocked downpipes and drains may also lead to water overflowing gutters. Or a guttering overflow may occur during a downpour because the large volume of water can't be drained away fast enough. An "overloaded" roof drainage system will need more downpipes installed.

Overflow faults are worsened when the outside edge of the spouting is higher than the inside edge, a common installation fault. Problem installations of this kind can often be remedied by loosening the gutter brackets so that the outside edge of the gutter becomes lower than the inside edge. Alternatively, overflow outlets could be drilled into the gutter, below the danger level.

A look inside the eaves should reveal if leaks have occurred and if any timber-rot problems exist as a result. It is also important to check the inside of gutters. Rainwater ponding, may indicate that the gutters flow the wrong way.

Additional guttering problems may occur in a house with a party wall. A rusting valley gutter or box gutter is a serious problem in this case, as the water will run straight into the ceiling. 

The rusted sections should be replaced and the flashing removed from the mortar between the bricks.

• Rusting of the gutter due to a lack of cleaning
• Accumulated soil, plant material and debris with associated moisture accelerate the corrosion of the gutter
• Rusting of downpipes in the bend under the eaves
• Rotting of the fascia due to the gutter leaking. Fascia corners are especially vulnerable to rot, as the mitred timber corner has exposed end grain
• Box gutters can overflow into the unit below, as the gutter is 'boxed in' behind the facade so trapping the water
• Stormwater sumps can quickly fill up with leaves and rubbish.



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