Greenslope for Ponding Water

£99.99£487.47 (inc. VAT)

Don’t let ponding water ruin your roof.
Everything you need to flatten out uneven areas on your roof.

roof repair kit tick Everything you need in one kit
roof repair kit tick Just mix contents of the bucket, fill the area and top coat.
roof repair kit tick Stops ponding water


SKU: N/A Categories: ,


What is a Greenslope Kit and why do I need a top coat?

Greenslope works by filling in the uneven area with a mixture of recycled rubber crumb, polystyrene beads and a binding adhesive that forms a strong, yet light, surface. It is lightweight, quick and easy to use and as environmentally friendly as possible. It will fill up the dips where the water is pooling and make your flat roof flat again. Once a top coat has been applied it is completely water tight and you can say goodbye standing water problems on your flat roof.

You do need to topcoat the Greenslope once it’s been applied and before it rains. The top coat seals the Greenslope so that water can’t get in. We sell the top coat as an add-on product in case customers have their own product already. If you are using your own top coat please bear in mind it needs to be thick (preferably fibre re-inforced) as a thin coat will drip through into the filler.
One tin of top coat should be enough to cover one kit of Greenslope but there is the option to buy more.
The top coat:

  • The Fibre Reinforced is a super strong fibre-reinforced liquid rubber and you need to apply it with a trowel. It’s important it’s applied thickly enough that it doesn’t soak through into the Greenslope and whilst you might be tempted to use a short pile roller it is not easy to get the coating to lay smooth and the fibres could clump up.
How many kits will I need?

One kit will cover the metre square area stated below (Sq m) x the depth shown below (mm). Multiple discount is available on orders of more than one kit. For orders of over 3 kits please contact us on 01453 872850.

water lying on flat roof

Top Coats
Our Alltimes Fibre Reinforced top coat gives you a robust cover and is an easy to apply one coat system.
Colour: Grey
Coverage rate is 2 – 2.5 m2 per 5kg tin.

*If you would like to order more than 3 kits please contact us on 01453 872850

Watch the application video here:

Brought to the UK for the first time by Alltimes Coatings, this unique and innovative kit contains everything you need to fix ponding water on your flat roof. Sold in over 60 Stores across the US and winning many prizes, including 2018 roofing magazines product of the year, this tried and trusted method for fixing your flat roof is now available for DIYers and contractors alike due to its simple application method. Made with recycled rubber crumb and using recycled rubble sacks and recyclable plastic resin and catalyst containers, you can rest assured when fixing your roof your being environmentally sympathetic. An easy but strong, durable and reliable fix, that doesn’t cost the same  as a new roof!

One size bucket.
1bucket will cover a hole approximately 1M wide by 1M long and 18mm deep. See coverage guide opposite for more variations in depth and width coverage.
1 tin top coat covers 2 – 2.5m2
Get the surface clean and dry. Mix accelerator and binder then apply mixture onto affected area and a bit beyond. Mix up all the bucket ingredients with remaining binder in mixing bag. Pack the filling mixture into the affected area and pack down. Once dried apply a layer of top coat, either our own or a top coat that you already have.


Identify the ponding area and mark an outline on the roof surface with paint. Thoroughly clean the area and make any needed repairs to ensure a good bond. Make sure the area is dry. Note: Pressure washing or cleaning with an all-purpose cleaner can help with extremely dirty areas.


Note: mix the material after priming. Pour the small 6ml accelerator provided into the 500ml primer and mix thoroughly. Apply the primer onto the ponding area earlier outlined with the paint brush provided BUT make sure you paint the primer on an extra 50mm round the edge of where the Greenslope will end. Allow the primer to dry.


Pour the larger 16ml bottle of accelerator into the 1L of binder and mix/shake very thoroughly so that the accelerator has a chance to mix with all of the binder. Pour all the rubber granules, polystyrene beads, binder and any excess primer (if there is any), into the mixing bag, seal with the cable tie and mix everything at once, usually only takes 4-5 minutes to mix. We recommend rolling the bag on a smooth surface to get the best mixture. If you only need a small amount, mix in the bucket.

Spread & Compress:

Open the bag and pour the contents over the desired area and spread the mixture using a trowel or straight-edge. Wet the trowel in solvent to stop the components sticking ( you may need to keep dipping it but if you use too much it will affect the binder setting properly). We recommend using a spirit level to check that you have spread it to the gradient desired. IMPORTANT; It is essential to compress the material thoroughly using the trowel, especially around perimeter to minimize water infiltration and make a smooth surface for the top coat. Wait until the Greenslope is dry before applying the top coat. Note: If it looks like it might rain before you can apply the top coat, make sure you cover it well so that no water can get in as it won’t be able to drain away.

You may also like…