Ensure that valley boards provide full support for grp valley.
Grp valley gutter details.
0 67w m 2 k 30mm thick to 0 21w m 2 k 100mm thick membrane.
Modern lead starts to fail after 20 years and is very desirable to thieves.
2014 class b maximum 868mm boundary sole 700mm valley sole dimension.
Just one straight run is required and of course we guarantee it for 30 years.
Here are a few pointers.
Preformed grp valleys in many ways the roof construction for a pre formed grp valley is the same as that for a lead lined valley.
In response to customer demand we can now offer an even higher capacity box gutter suitable for use with larger roofs were capacity is more important than elegance.
There s no need to step the decking boards.
The valley should secured to counterbattens by at least one nail every 400mm.
This means that grp valley troughs will last longer than the metal valley alternatives which often end up corroding over time coming away.
Some grp valleys are sufficiently robust to enable them to be laid directly over the rafters rather than being supported on valley boards.
For ogee radius gutters please click here.
Grp box gutters radius and straight.
Benefits of grp valley troughs.
They are easier to install can be used on tile and slate roofs as well as profiled grp roofs or metal roofs and are long lasting.
It is ideal for most types of roof design which have a valley junction between two roof slopes.
Tried and tested and complies with bs 5534 2014 requirements for valleys.
Boundary valley and valley hip lengths.
Designed as a cost effective alternative to lead the 125 grp valley is easy to fix durable and lightweight.
Lay underlay as recommended by valley manufacturer.
Fit valley as recommended by valley manufacturer.
We ve arranged our superb selection into grp valley troughs for tiled roofs and roof valley solutions for slate roofs.
Available in lengths up to 8m fire rating.
Grp fibreglass is so strong and durable it is the ideal product to replace lead valleys or box gutters whether on new build or existing buildings.
Design right by alide elkink freelance technical writer wellington cross sectional details for valley gutters are given in both acceptable solution e2 as1 and the nz metal roof and wall cladding code of.
Lpcb certified to lps 1181 grade ext b non fragility performance.
Some types of grp valleys do not require valley boards check with valley manufacturer.
Iko armourplan 0 6mm and1 2mm and sika trocal 0 8 and 1 2 mm application.
Grp valley troughs provide you with a durable and cost effective alternative to lead products.
Grp valley troughs provide an alternative to a metal roof valley with a number of benefits.
Easily cut and available in 3 m lengths.
Firstly grp is an incredibly strong material with a long lifespan.
