For further information please contact SLE Cladding Ltd. Tel. 01948 666 321. Fax.  01948 66 55 32
 

CASCADE

PVC-U  Gutter & Downpipe Systems

Click on the appropriate Green Button below

Design & Installation Guidelines
A lower cost 112mm Half Round Gutter & 68mm Round Downpipe System
114mm Square Style Gutter & 65mm Square Downpipes & Fittings
106mm Prostyle Ogee Gutter & Fittings
115mm x 75mm Deepstyle Gutter & Fittings
112mm Half Round Gutter & Fittings
160mm Industrial Half Round Gutter & Fitting
200mm Gutter by Hunter.
68mm Downpipe & Fittings
110mm Industrial Pipes & Fittings
160mm Industrial Pipes & Fittings.
200mm  Industrial Pipes & Fittings
See notes below
 
ROOF SYSTEM SELECTION
 The amount of rainwater collected by a given roof area will determine the type of gutter system as well as the number and positions of the outlets. The effective roof area must be calculated and checked against the gutter flow capacity of the rainwater system used. The formula below is used to calculate the effective roof area:
 

Formula  E = (B+C/2)*L

 B = Half roof span (m).  C=Ridge to eaves height (m)       L = Slope length (m).   E = Effective roof area (m2)
 
NOTES.  See also Design & Installation Guidelines at 1/. above.

RAINFALL INTENSITY.

Rainfall Intensity in the UK varies with location and surrounding topography: a rainfall intensity of 75mm/ hour is usually taken as the UK maximum when calculating the discharge requirements for gutter, downpipe and underground drainage systems.

THERMAL EXPANSION.

PVC has a coefficient of linear expansion of 6 x 10-5. Consequently a 2 metre length of gutter or downpipe will expand by 2.4mm for a 20 deg. C temperature rise. This expansion is taken into consideration in the design of Cascade rainwater fittings and must be accommodated when installing.

MANUFACTURE

Cascade rainwater systems satisfy the requirements of :-  The Building Regulations 1985, 1990.  Building Standards (Scotland) Regulations 1990. Building Regulations (Northern Ireland) 1990.

Cascade rainwater systems are manufactured under the following British Standards.

BS5750: Part 2 1990. Quality Systems.  BS4576: Part1: 1990 Specification for Unplasticised PVC.,
 
   
For further information please contact SLE Cladding Ltd. Tel. 01948 666 321. Fax.  01948 66 55 32

Copyright (c)1999 SLE Cladding Limited.