Dryseal GRP Flat Roofing System - Roof Waterproofing System
Verified by manufacturer 17 hours ago
BBA Agrément Certificate
Certificate type
Warrington Fire
Certificate type
Secured By Design
Certificate type
Dryseal is a roof waterproofing system comprising of pre-cured mechanically fixed GRP membrane and profiled trim components, suitable for low pitched and ‘flat’ roofing.
Application
- Suitable for low pitched and ‘flat’ roofing.
- Used on cold or warm roof configurations.
- Installed in new-build applications or over an existing roof covering subject to the deck being in good condition.
- Laid directly onto the insulation in a warm roof situation and additional insulation layers in refurbishment work.
- Suitable for green roof applications.
Description
The Dryseal GRP Roofing System for flat an low pitched roofs is approved installer only and consists of a prefabricated glass fibre reinforced polyester (GRP) resin flat sheet and preformed trims, mechanically fixed and jointed on site by the hand lay-up process and coated with a UV protective liquid-applied polyester top coat.
It requires much less site applied ‘wet’ working, compared to other available systems, in turn improving the speed and security of installation, restricting the effects of inclement weather during installation, and helping to complete an effective single ply membrane roof covering.
Features and benefits:
- Fully mechanically fixed, jointed using resin and fibreglass reinforcement then finished with a UV protective top coat.
- Colour choice of UV resistant service finish.
- Robust and non-toxic.
- Based on standard components that provide a system guaranteed to remain leak-free for 20 years.
- Leak-free Materials Guarantee is supplemented by the Approved Installer’s Guarantee and further covered by an insurance backed warranty.
- Manufactured in accordance with ISO 9001 Quality and ISO 14001 Environmental standards.
- Additionally approved by the British Board of Agrément (BBA).
General information
Color | Grey |
Finish | Smooth Anti-slip Manufacturer guidanceUV-protective topcoat |
Material | Glass Reinforced Plastic (GRP) |
Shape | Other |
Length | 6000 mm |
Width | 1250 mm |
Height | 1.3 mm Manufacturer guidanceThickness of the membrane and trims |
Warranty description | 20 year Guidance for specification option: The product guarantee for longevity and 'leak free' properties from Hambleside Danelaw Ltd is for 20 years. The installers' guarantee is concurrent with the manufacturers's guarantee and is valid for the first 10 years. There is a 5 year insured guarantee which covers the installation in the event of contractor or manufacturer's insolvency. |
Uniclass | |
CAWS | J31/10 Warm deck roof coating J31/120 Warm deck roof coating J31/110 Cold deck roof coating J31/5 Cold deck roof coating |
Specification data - Liquid-applied warm roof covering systems
System performance | Waterproofing. |
Preparation | |
Horizontal work | Manufacturer guidanceVapour control layer recommendations as per manufacturer literature. Insert requirements. |
Skirtings and vertical work | Manufacturer guidanceInsert requirements or omit. |
Air and vapour control layer | Not required.Required.Guidance for specification option:
|
Insulation | |
Type | Not required.Guidance for specification option: Not applicable for cold roof systems. Required.Guidance for specification option:
|
Fixing | Manufacturer guidanceFixing recommendations as per Hambleside Danelaw technical advice. Insert requirements. |
Overlay | |
Type | Manufacturer guidanceInsert requirements or omit. |
Fixing | Manufacturer guidanceFixing recommendations as per Hambleside Danelaw technical advice. Insert requirements. |
Carrier membrane | |
Type | H 1250 F heavy duty flat sheet.H 1250 RibTec sheet.Manufacturer guidanceDryseal membrane sheets: Thickness: 1.3 mm (nominal). Length: 6.0 m. Width: 1.25 m. |
Fixing | Fixing plates (40 mm diameter glass filled polyamide). |
Liquid-applied waterproofing | |
Type | Polyester resin waterproof coatings. |
Reinforcement | Glass fibre reinforcement. |
Surface treatment | UV protective liquid-applied polyester top coat, Dryseal Dark Grey.UV protective liquid-applied polyester top coat, Dryseal Light Grey.UV protective liquid-applied polyester top coat, RAL or BS colour.Guidance for specification option: Matched to any BS and RAL colour. Insert requirements. |
System accessories | Dryseal trims.Guidance for specification option: Thickness: 1.2 mm. Length: 3.0 m. |
Weight | <3 kg/m². |
Thermal conductivity (maximum) | 0.2 W/mK. |
Thermal transmittance (U-Value) | 5.7 W/m²K. |
Linear thermal expansion coefficient | 22 x 10-6m/m per °C. |
Water absorption | <3% (24 hrs at 20°C). |
Water vapour resistance | 475 MNs/g (75% RH, 25°C). |
Tensile strength | 112 kN/m. |
Sustainability data
Contains Red List materials | No |
Country of product manufacture | United Kingdom |
Material | Glass Reinforced Plastic (GRP) |
Manufacturing plant location | |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 0 % |
Expected Life | 30 year |
Third party certifications
BBA Agrément Certificate
BBA Certificate
Warrington Fire
Warrington Fire Test
Secured By Design
Secured by Design Certificate Dryseal 2024
Literature
Dryseal Sales Brochure - Interactive
Warm Roof - Generic Dryseal Specification
Dryseal Roofing System Cold Roof Specification
Dryseal Product Data Sheet
Dryseal Drawings
Dryseal Guarantee Specimen
Dryseal inspection and maintenance recommendations post installation
Dryseal roof edge trim detail drawings
Case studies
Green roof in Boothby Graffoe, Lincs.
New House in Ballinagare, Co Roscommon
Zinc lookalike roof.