The universal valley troughs are designed for use with interlocking tiles, and can also be used with natural and man made slates. Meeting all the requirements for 'standard' double lap valley troughs in NFRC Technical Bulletin 28. They incorporate sanded strips (min. width 35mm) for the mortar to bond to.

Features:

• BBA Approved
• Lasts as long as lead, minimum of 30 years.
• More resistant to accidental damage.
• Less prone to theft.
• Quicker to install.
• Similar appearance to lead.
• Considerable cost savings when compared to lead.
• UV light and acid rain resitant.
• Smooth surface inhibits the growth of moss & lichen and the build up of debris.
• Fire resistant to SAB to BS476 part 3 and class 3 t