OSMA

Wavin
Registered office
Hazlehead
Crow Edge
Sheffield
S36 4HG
Tel:  +44 (0)1249 766600
Fax:  +44 (0)1249 443286
Email: info@wavin.co.uk
Website: www.osma.co.uk

Introduction  OSMA is a brand of 
Wavin UK, a leading supplier of 
water management, plumbing and 
drainage systems. The company 
has a reputation for innovation and 
leadership, and an extensive 
product portfolio that includes 
Hep

2

O

®

, Hepworth, Certus, Intesio 

and Thermoboard. 
Applications  Rainwater systems 
are suitable for use in a wide range 
of buildings from individual houses 
to large residential, commercial or 
industrial premises.
Authority  Wavin is a registered 
firm to BS EN ISO 9001 and is 
accredited to EN ISO 14001. 
All products comply with or exceed 
relevant British and European 
standards - gutters are approved to 
BS EN 607, gutter brackets to 
BS EN 1462 and downpipes, except 
for 55 mm diameters, to BS EN 12200: 
Part 1. 

DESCRIPTION
Half-round gutter systems
RoundLine - dia. 112 mm (4½"):
classic simple shape ideal for 
domestic/housing projects; for roof 
areas to a maximum 163 m

2

 with  

1 downpipe; available in black, grey, 
white and brown.*

68

SuperLine - dia. 125 mm (5"):
high volume removal rate for large 
domestic and small commercial 
housing projects; for roof areas to a 
maximum 250 m

2

 with 1 downpipe; 

available in black.*

68

RoofLine - dia. 150 mm (6"):
of classic profile with very high 
capacity for large commercial and 
industrial buildings; for roof areas to 
a maximum 317 m

2

 with 1 downpipe; 

available in black and grey.*

110

Semi-elliptical gutter systems
DeepLine - 113 mm (4½") across 
rim: high capacity for domestic and 
small commercial buildings; for roof 
areas to a maximum 299 m

2

 with  

1 downpipe; available in black, grey, 
white and brown.*

68

Square/profiled gutter systems
Squareline - 103 mm (4") width at 
rim x 76 mm (3") height: smart 
rectilinear profile for domestic 
buildings; for roof areas to a 
maximum 178 m

2

 with 1 downpipe; 

available in black, white and 
brown.*

61

*

68

StormLine - 111 mm (4¼") width at 
rim x 97 mm (3¾") height at front x 
76 mm (3") height at rear: high 
capacity, ogee profile with high front 
edge to prevent water overshoot; for 
roof areas to a maximum 254 m

2

 

OSMA

with 1 downpipe; available in black, 
white.*

61

*

68

Flat roof and balcony outlets
OSMA roof outlets - 82 mm (3¼") 
and 110 mm (4¼") diameters: for 
flat roofs and balconies installed in 
mastic asphalt or built-up roofing; for 
roof areas to a maximum 143 m

2

 

with 82 mm outlet and maximum 
209 m

2

 with 110 mm outlet with 1 

downpipe; available in black, white 
and brown. *

82

*

110

Downpipe connections:
*

61 

61 mm (2½") square (via adaptor)

*

68

 68 mm (2½") circular

*

82

 82 mm (3¼") circular 

*

110

 110 mm (4") circular

Composition, manufacture  
System components are 
manufactured from PVC-U. 
Accessories  
Gutters: support brackets, running 
outlets and 90° angles are available 
for all gutters. Bracket and union 
joints; rise and fall, rafter and 
hanging brackets; stopend outlets, 
leaf guards and 60° and 45° angles 
are selectively available.
Downpipes: pipe and socket 
brackets, offset bends and 67½ 
branches are available for all 
downpipes. Pipe or socket, drive-in 
and ext./spacer brackets; long tail 
offset and 87½ bends; 87½ 
branches and access pipes are 
selectively available.
Appearance  Components are 
self-coloured but may be painted with 
normal household paints, oil based 
gloss paints being the most suitable.

PERFORMANCE
Biological  System components are 
not susceptible to attack by insects 
or vermin.
Pollution  System components are 
unaffected by pollution or impurities 
in rainwater.
Light  System components are 
resistant to UV light. Colour may 
fade after a number of years' 
exposure to strong sunlight but with 
no integral damage.

SERVICES
Services to specifiers comprise: 
-  Comprehensive technical support  
  at every stage of the project
-  Assistance with product selection
-  On-site advice and troubleshooting
-  Design and production of bespoke  
 fittings
-  Installation and maintenance  

 

 advice

®

 Registered trademark

Literature Service
Email: 
literature@wavin.co.uk
Technical Advisory Service
Tel:  +44 (0)844 856 5165
Fax:  +44 (0)844 856 5166
Email: 
technical.design@wavin.co.uk

rps no: 7934