![](https://principalbuildingproducts.com/wp-content/uploads/2023/09/AQUA-LOGO-2023-WHITE--300x149.png)
![](https://principalbuildingproducts.com/wp-content/uploads/2023/09/AQUA-TINS-WEBSITE_.png)
Aqua GRP Resin when used with Aqua GRP Topcoat provides a leak free cost effective flat roofing system.
The system is cold applied and does not require any use of flame torches making installation safer.
When competently installed the Aqua GRP range creates a seamless frost proof and strong flat roof of any shape and size.
Aqua Resin and Topcoat should be mixed with a quality hardener and is compatible with all good quality components such as GRP trims. Trim adhesives and chopped strand matting.
Aqua Resin and Topcoat should be mixed with a quality hardener and is compatible with all good quality components such as GRP trims. Trim adhesives and chopped strand matting.
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/Drip-trim-web-01.png)
A170 Small Drip
Flat roof edge above gutter.
80mm x 70mm
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/Drip-trim-web-01.png)
A200 Standard Drip
Flat roof edge above gutter.
80mm x 90mm
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/A250-large-drip-01.png)
A250 Large Drip
Flat roof edge above gutter.
80mm x 140mm
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/B230-raised-edge-01.png)
B230 Raised Edge
Fitted to prevent water run off.
100mm x 105mm
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/B260-raised-edge-01.png)
B260 Raised Edge
Fitted to prevent water run off.
100mm x 130mm
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/B260-raised-edge-01.png)
B300 Raised Edge
Fitted to prevent water run off.
100mm x 180mm
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/d260-angle-fillet-01.png)
D260 Angle Fillet
Buts up against up-stand wall.
110mm x 60mm 75mm
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/d300-angle-fillet-01.png)
D300 Angle Fillet
Buts up against up-stand wall.
185mm x 60mm x 85mm
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/ER35-Ridge-roll-01.png)
ER35/40 Ridge Roll
Simulates lead roll.
65mm x 90mm
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/E280-expansion-01.png)
E280 Expansion
For use on large areas.
65mm x 185mm
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/f300-flat-sheet-01.png)
F300 Flat Sheet
300mm
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/external-internal-AT195-.png)
AT195 External
75mm x 120mm
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/external-internal-AT195--e1682669879530.png)
AT195 Internal
65mm x 185mm
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/c100-simulated-lead-01.png)
C100 Simulated lead
Replaces traditional lead flashing.
30mm x 100mm
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/c150-Long-leg-simulated-lead-01.png)
C150 long leg simulated lead
Replaces traditional lead flashing.
30mm x 150km
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/c1-external-corner-01.png)
C1 Universal External Corner
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/c4-internal-corner-01.png)
C4 Universal Internal Corner
GRP Range of Tools
Downloads
Data Sheets
Material Safety Data Sheets
Installation Guides
Full Range of Trims
Estimating Quantities Guide
GRP Materials Calculator
Please note Hardener Quantities will vary depending on weather conditions.
Installation Video
Sentinel GRP Installation Guide
Our Sentinel GRP installation guide is a comprehensive step by step booklet including our full range of trims and an easy to follow estimating materials guide.
![](https://principalbuildingproducts.com/wp-content/uploads/2023/04/sentinel-brochure-mock-up-.png)