A waterproof expansion joint for gutters in metal roofing systems

  • Waterproof
  • No Steps
  • Fewer Outlets
  • suitable for aluminium, copper, lead, stainless steel and zinc gutters
  • produced to ISO 9001 quality standard
  • provides a waterproof joint
  • guaranteed for 10 years
  • suitable for use in rural, urban, industrial and marine atmospheres
  • has been used without failure in very hot and cold climates

What is T-Pren?

Daily and seasonal thermal cycling causes metal gutter linings to expand and contract, and if expansion joints are not provided this movement will cause the metal to crack and the gutter to leak.

T-Pren was developed to overcome these problems by providing a waterproof expansion joint, which reduces the number of outlets and eliminates the need for steps.

T-Pren is a composite material with a centre section of neoprene to provide the expansion and contraction bonded to metal on either side, which is then welded onto sections of the metal gutter.

The bonding is done under strictly controlled factory conditions in accordance with ISO 9001 quality standards.

Case Studies

Zhuhai Bridge - Hong Kong

1800 metres of T-Pren gutter expansion joints have been supplied for the port terminal buildings on the Hong Kong – Zhuhai bridge. Recently opened by Chinese president Xi Jinping the bridge is the world’s longest sea crossing bridge.

King Abdulaziz International Airport

Over 3000 metres of aluminium T-Pren expansion joints have been supplied for the new King Abdulaziz international airport. The new airport has been designed to accommodate 80 million passengers and will be the main gateway for pilgrims coming to perform the Haj.

Rocky Ridge - Calgary Canada

Around 1000 metres of T-Pren gutter expansion joints were supplied for the 28,000 sq.m. curved roof of the Rocky Ridge recreational centre in Calgary, Canada. The centre houses two swimming pools, two ice rinks, three gyms, a running track and library.

Contact Us

Contact us directly using the following details, or use the enquiry form below.

Roger Smith
E-Mail: sales@t-pren.com
Address: 54 Blacka Moor Road, Sheffield S17 3GJ
Tel : +44 (0) 114 236 8122


England & Wales

Matthew Hebden

54 Blacka Moor Road,
S17 3GJ

Tel. +44 (0) 114 236 8122

British Lead Mills (For Lead)

Peartree Lane,
Welwyn Garden City,

Tel. +44 (0) 1707 324595
Fax. +44 (0) 1707 328941


Dunedin Builders Merchants

Units 14-18,
Dunedin Street,

Tel.+44 (0) 131 5572345
Fax.+44 (0) 131 5572341

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