Wednesday, 29 April 2009

Guttering Installation Guide


Fascia brackets should be spaced at a maximum of 1000 mm apart on straight
Gutter runs on square and round guttering and 800mm apart on Ogee Niagara and Industrial Guttering.

Angles and stop ends should have a fascia bracket within 150 mm of the fitting A supporting pipe clip should be used on shoes branches and offset bends to prevent the down pipe from slipping Down pipes are best fixed at a maximum of 1 metre aparts.

If you intend to cover your old timber with UPVC fascias and soffit board now would be the ideal time to do it , using UPVC will ensure many years maintenance free .

You`re now ready to begin installing your gutter start by locating the running outlets above drains or the intended area where the down pipes are to be fitted remember the outlet is where the water will run out of the guttering and as such needs to be as the lowest point 1:600 is the recommended fall

Fix a fascia bracket 100 mm from the running outlet you will need to use more than one screw, ensure that the bracket is level

With the outlet repeat this process 100 mm from the furthest point leading to the guttering then fix a string line securely to both brackets, over large distances you will need to support any sagging the line may have in the centre to prevent pooling
at low points.

Now space your brackets to the required distance and fix up to the string line when deciding on bracket spacing you should remember that in areas of heavy snow fall it is better to fix the brackets closer together This provides more support for the guttering or you can at least put two screws in the fascia brackets .You will find it makes a neater job to actually measure the centres of brackets used.

Keep screws away from the top of the fascia board & this will avoid splitting the wood / plastic fascia You should use 10x1.25 screws to fit guttering with two in each bracket .Or one 14 x 1.25 screw should suffice.

Ensure gutters are only fitted up to the cut lines as indicated inside the fitting this allows adequate room for the gutter to expand and contract.

To fit the gutter start at the out let insert the back edge first up under the retaining clip then push down ward until the front clip fits tightly into place

Ensure the back clip has stayed in position and double check the gutter is in the marked position .allowing for expansion and contraction.

Now add a union to add the next piece of gutter, and repeat the process until all fittings are in place.

Add stop ends to the end of each gutter run and complete your down pipes

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General repair & maintenance

Repair leaking gutters before rain water causes extensive damage to bricks, rots windows and causes damp. Most gutter leaks are caused by one of four problems: blockages, holes or cracks in them, leaking or sagging.

Blockages

Use a small brush and clean along the gutter. You may find it easier to have a bucket tied to the ladder to put waste in. Putting a piece of gauze or chicken wire over the downpipe outlet should stop leaves getting into the downpipe. Flush blocked downpipes out with a hose.

Holes or cracks

These can be repaired provided they are not too large. On plastic, use a plastic sealing compound while on cast iron use a metal putty or fiberglass. Examples of such products are ‘Marley Sealtite’, ‘Aquaseal 88’, ‘Sylglass Waterproofing Tape’ and ‘Managers Stop-That-Leak’ aerosol spray.

Leaking joints

Joints between lengths of guttering can sometimes leak because the rubber seal is worn or has dirt underneath. To clean under or to change the seal in plastic guttering you unclip the gutter. With some types of gutter you buy new seals but with others you replace the joints.

Sagging

If the gutter is sagging water will not flow to the downpipe properly. You will need to move or buy extra brackets. As there are different ways of fixing them look to see how the others have been done.