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1. I have a roof of Xm2. What gutter style would be needed to drain this roof?
2. I need an odd gutter angle. Can Hunter help?
3. Can Hunter gutter be painted?
4. Must guttering be laid at a gradient?
5. Are Hunter Plastics flat roof outlets suitable for use with a Trocal or asphalt roof covering?
6. Do I need to clean and maintain gutters to keep them looking right and performing well?



1. I have a roof of Xm2. What gutter style would be needed to drain this roof?
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2. I need an odd gutter angle. Can Hunter help?

  Hunter offers a full fabrication service which is available on request, offering unique angles, offsets etc. to overcome difficult installations.

The following are a few of the common items produced:

Rainwater guttering - any degree angle through one or two planes.
Rainwater downpipes - Offset bends to any degree

single or double branches to any degree.
160mm Soil System - 92.5° Double Equal Branch Ventilation Extract cover
160mm Access Junction - Single equal-Spigot Tail LH and RH 45°

Single unequal - 160mm x 110mm Spigot tail

LH and RH 45°.
Channel Pipe -Long radius -P/E 87.5o 686mm radius
Underground Half Sections - Junction single equal - 87.5°& 45° LH/RH

Bends - 87.5° & 45 LH and RH.

Hunter offers a complete estimating, packaging, and shipping service to facilitate export orders, together with local assistance in many countries.

Please note that all Hunter products are sold according to our Standard Conditions of Sale, copies of which are available on request.

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3. Can Hunter gutter be painted?

  Although uPVC gutters are considered to be relatively maintenance-free, in some cases our lighter coloured gutter system may require cleaning. We recommend the plastic is washed down with a solution of soapy warm water, in severe cases a non-abrasive kitchen cream cleaner should be used.

Should the instance arise where the gutter requires painting we suggest the system is cleaned with a degreasing agent such as sugar soap. After cleaning paint with two coats of a good quality gloss paint. Scoring or roughening the surface of the plastic to form a key for the paint will affect the overall finish and is not recommended.

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4. Must guttering be laid at a gradient?

  Domestic eaves gutter, especially when fixed on rafter brackets, should be laid to a fall of not greater than 1:350 to allow for settlement. Too steep a fall should be avoided, as this leads to an excessive gap between the lowest edge of the roof and the top of the gutter. Where prefabricated gutters are fitted a fall may not necessarily be required but support brackets should prevent sagging and ponding.

A gutter laid to a fall will have a higher drainage capacity than one laid level.

Further information regarding gutter installation can be found in British Standard 6367:1983 and under rainwater section.

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5. Are Hunter Plastics flat roof outlets suitable for use with a Trocal or asphalt roof covering?

  Yes, they can be used with many types of roof coverings and have a clamping ring designed specifically for holding an uPVC roof membrane.

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6. Do I need to clean and maintain gutters to keep them looking right and performing well?

  Although PVC gutters are relatively maintenance free, it is important to clear rainwater goods of fallen leaves and other debris at least once a year. A planned cleaning programme is essential to maintain the appearance of your gutter system. We recommend twice yearly cleaning by washing down with solution of soapy warm water, in severe cases a non-abrasive cleaner should be used.

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Select an area below to view frequently asked technical questions:

Rainwater
Soil
Waste
Drain
Inspection Chambers
Grease Management

If your question has not been answered already please contact us to register your question and our technical/design engineers will provide you with an answer.
All Hunter products are manufactured using a quality management system approved by BSI and conforming to BS EN ISO9001:2000. Where applicable product conforms to British and European standards.