600grm GRP Fibreglass Roofing Kits with Dark Iron Grey Topcoat

Heavy-duty 600g GRP roofing kit: everything for a walk-on flat roof in one delivery.

✔️ Built for foot traffic: balconies, green roofs, maintenance access
✔️ Dark Iron Grey topcoat and catalyst included
✔️ Can be laid from 5°C, summer or winter
✔️ Free UK delivery. Order by 12pm for same-day dispatch

Not sure what size you need? Use the kit calculator →
It works out your kit and trims in one go.

What's in the box

GRP resin, 600g chopped strand matting, Dark Iron Grey topcoat, catalyst, 75mm tape, and a mixing chart by email. Exact quantities show when you pick your size above.

Optional tool kit

Rollers, consolidation roller, brushes, buckets, mixing sticks, acetone and an extension handle. Choose "Yes please!" above.

Trims for £11 each

When ordered with a roof kit. Choose your trims →

600g or 450g?

Go for 600g if anyone will walk on the roof. Choose 450g for sheds, garages and roofs with no foot traffic.

Bigger than 100m² or trade?

Call 0800 612 7903 for a quote.

Made with UK-manufactured materials. Expect 50+ years when correctly installed.

Here are 5 more great reasons to buy from us:

Returns are easy, if the items are?unopened and unused?then simply?contact us?for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap!

In the unlikely event that you find your item cheaper at another online store, just let us know and we'll beat the competitor's pricing hands-down.

We insist that you love everything you buy from us. If you're unhappy for any reason whatsoever, just let us know and we'll bend over backwards to make things right again.

Ordering from APEX Fibreglass Roofing Supplies is 100% safe and secureso you can rest easy. Your personal details are never shared, sold or rented to anyone either.

Here are 5 more great reasons to buy from us:

Returns are easy, if the items are?unopened and unused?then simply?contact us?for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap!

In the unlikely event that you find your item cheaper at another online store, just let us know and we'll beat the competitor's pricing hands-down.

We insist that you love everything you buy from us. If you're unhappy for any reason whatsoever, just let us know and we'll bend over backwards to make things right again.

Ordering from APEX Fibreglass Roofing Supplies is 100% safe and secureso you can rest easy. Your personal details are never shared, sold or rented to anyone either.