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Summary of Contents for Cure It GRP
- Page 1 Installation Guide Installation, handling, storage and technical information...
- Page 2 Summary of features • 20 year materials guarantee from the manufacturer • 20 year workmanship guarantee from the installer • Optional 10 year insurance-backed guarantee available • Fire retardant (to BS476-3:2004) • Proven pedigree as a waterproofing material with the potential to last for the lifetime of the building •...
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Page 3: Table Of Contents
Contents Training is recommended before using the Cure It system CONTENTS PAGE Cure It Data Sheet Key Steps to The Perfect Cure It Roof Component Parts of a Cure It Roof Tools and Materials Stages of Installing a Cure It Roof... -
Page 4: Cure It Data Sheet
(granulated non-slip slate coating applied at 0.75kg/m ) and coated aggregate finish (granulated non-slip slate coating applied at 0.15kg/m Standard Specification OSB3 18mm T & G Cure It Roofing Resin @ 1.5kg/m Cure It approved Reinforcement Mat Cure It Roofing Topcoat @ 0.4kg/m Cure It Hardener (1-4%) Cure It GRP edge trims Trim adhesive applied around the perimeter Applied as per the Cure It Installation Manual... -
Page 5: Key Steps To The Perfect Cure It Roof
Key steps to the perfect roof After reading this manual please refer to this page. Always remember the following key rules when installing a Cure It GRP roof. These are areas where mistakes are most commonly made: Decking •... -
Page 6: Component Parts Of A Cure It Roof
General information Component Parts of Cure It Roof This diagram shows a breakdown of a typical Cure It roofing installation and its component parts: B260 Raised edge trim 7 Cure It laminate comprising of roofing resin and roofing mat D260 Fillet trim 8 Cure It Roofing Topcoat 3 C100 Simulated lead flashing AT 195 External Angle Trim A200 Drip edge trim 10 D260 Fillet Trim... -
Page 7: Tools And Materials
For easy measurement of materials and hardener addition • Brushes Required for detail work • 70mm + 140mm rollers These can be extended with a Cure It extension pole • Consolidating rollers/paddle roller These can be extended with a Cure It extension pole • Hardener safety dispenser... -
Page 8: Stages Of Installing A Cure It Roof
Topcoating and finishing (pages 13-15) (page 16) Joints between decking, gutters, GRP trims and The roof is then topcoated, with the client’s protrusions e.g. pipes are bandaged at this point. specification of colour and finish. The entire roof is then laminated with a layer of GRP. -
Page 9: Stage 1 - Laying The Deck
Stage 1 Laying the deck Preparing the deck When laying decking, it is important to remember that the decking board will absorb moisture if in contact with water. Any moisture trapped within the roof will cause board movement, delamination and possibly failure. Ensure that conditions are dry before decking the roof. After removing the old decking, check that all roofing joists are sound and free from rot. Replace these as required. Any 'play' in the joists should be addressed at this stage. -
Page 10: Stage 2 - Grp Edge Trims
A200. A200: This is the standard size drip trim. A250: This drip trim is ideally suited for use on warm roofs. A170/200/250 Application diagrams: Decking GRP Layer and bandage Support batten NOTE: If the fall of the roof is only slight, the end of the decking board should be planed by 2mm before the battens... - Page 11 The trim can either be doubled up by slotting a section of extra trim within the section where the ladder will be used or it can be reinforced with an extra layer of Cure it laminate and then tissue to maintain a smooth finish. Alternately, a wooden batten can be shaped and fitted into the ridge of...
- Page 12 C100MT D260 The D trim remains Bond with trim adhesive unattached behind the C100. Brick GRP Layer and bandage 25mm Gap Decking 25mm gap to allow for The D trim is pushed right up expansion of the decking. to the wall before being fixed to the deck and not the wall.
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Page 13: Stage 3 - Laminating
Cure It Roofing Resin is supplied in tins of 20kg (for ease of mixing, simply use the measurements on the Cure It Mixing Bucket). The Cure It Mixing Buckets are graduated in kilos which will allow easy calculation of the amount of hardener needed depending on the ambient temperature. Hardener must be added to all resin and topcoat in order for it to cure. - Page 14 If any nails holding the trims are not going to be covered with laminate on the deck or corners they should be laminated with a small piece of mat. The deck of the roof can be laminated before the corners and bandages have cured. Bandaging for all other details can be completed as outlined in the GRP Edge Trim section. Laying the main laminate...
- Page 15 Taking care and paying attention at this stage will produce a roof of superb appearance. Using a Cure It sanding pad with a 40 grit sand paper, lightly sand the corners and trim bandages. Sand off any unsightly fibres, taking care not to sand too heavily on the corner itself as this may lead to holes appearing. Cut any...
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Page 16: Stage 4 - Topcoating And Finishing
Stage 4 Topcoating and Finishing Topcoating the roof The Topcoat is a resin and should be treated in the same way as the base resin. It requires the addition of hardener for it to cure. Always try to apply the topcoat immediately after the laminate is semi-cured (can be walked on, no stickiness) If this is not possible then ensure topcoating is carried out within 24 hours to gain good bonding with the laminate. If the topcoating is left longer than 24 hours then wipe down the laminate with acetone to gain a good bond of the topcoat to the laminate. -
Page 17: Hardener Addition
Hardener addition SUMMER/EXTRA SUMMER WINTER/SUMMER WINTER SLOW HARDENER HARDENER HARDENER HARDENER Deck/Resin 22-35 18-22 12-17 0-11 temp Percentage 1% Hardener 2% Hardener 3% Hardener 4% Hardener Hardener Table of Percentages in Millilitres, Per Weight of Resin Used Amount of Hardener Usage Resin 1 K i l o 10 ml... -
Page 18: Material Quantity Estimation
Cure It materials estimation chart This guide is an approximation of the quantities of materials required when laying a GRP roof. It should be noted that these values are not an accurate representation of the materials that will be needed for all GRP roofs of these sizes, detail and complex surfaces will adversely affect these values. The materials in the top table are required for every installation, many of the materials in the lower table can be reused. GRP Edge Trims are not shown. Always use a hardener safety dispenser. -
Page 19: General Advice
• Always mix smaller batches of Cure It Roofing Resin than you normally would to give adequate time to apply it before it starts to catalyse. • Always use extra slow hardener in hotter weather if the Cure It Roofing Resin starts to cure too quickly. • Always apply the laminate in the shortest runs possible across a roof. The shorter the length of laminate, the less likely it is that the Cure It Roofing Resin will catalyse before it can be consolidated into the laminate. • Use a temperature sensor to measure the surface temperature of the laminate before applying the topcoat. On surfaces that are too hot, the wax component of the topcoat will melt and the topcoat may remain tacky to the touch, this will usually mean that any loose debris will stick to the roof and the colour of the topcoat will also be impaired. -
Page 20: Troubleshooting
Troubleshooting guide Problems that occur while laying the roof 1) Failure of Cure It Roofing Resin to Harden Description of problem - Laminate is still wet and resin is uncured with no other symptoms. Possible cause Remedial action • Cure It Roofing Resin may have been inadequately mixed. • Add Hardener to another batch of resin, ensuring that you use the •... - Page 21 Troubleshooting guide Problems that occur while laying the roof 6) Failure of topcoat to cure Description of problem - Topcoat is still wet and has not cured. Possible cause Remedial action • Topcoat has been used with unsuitable hardener • After water has evaporated apply another very thin layer of topcoat, (i.e.
- Page 22 Troubleshooting guide Problems that occur after the roof has been laid 1) Delamination of the laminate from the boards Description of problem - Laminate is raised and springy. Possible cause Remedial action • This is caused by poor adhesion of the laminate to the boards and is •...
- Page 23 Troubleshooting guide Problems that occur after the roof has been laid 6) Board swelling (‘tile’ outline on the roof) Description of problem - This will cause a ‘tile’ effect to appear on the roof as the outlines of the boards appear as ridges on the roofs surface. The roof is unlikely to leak, but in very bad cases, some cracking may occur at the joints.
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Page 24: Warm Roof Part 'L' Specification Guidance
U= 0.18 - 105mm U= 0.15 - 130mm U= 0.13 - 160mm Or equivalently specified insulation 18mm T&G OSB3 Board Cure It Glass Reinforced Laminate *Based on λ (lamba) value of 0.21 from Celotex FR5000 2012 version Warm roof application GRP layer and bandage A250 or B300 trim would be applied to this edge... - Page 25 Battens the same thickness as the insulation boards used should be solidly attached to the concrete at 300mm centres. The Sterling board should then be fixed to the battens using the same fixings as would normally be used. Ensure there are no gaps between the layers. The laminate can then be laid over the top as normal. Cross-section of warm roof onto concrete or asphalt Topcoat GRP layer Topcoat layer 18mm OSB3 T&G GRP laminate OSB3 T&G conditioned sterling board Kingspan TR26 or equiv.
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Page 26: Grp Trims
E280 and existing felt. Felt Bandage the decking at the end of the GRP roof taking up the felt at the edge if possible to lay the trim underneath. The felt should be bonded to the trim with a liberal coating of Topflex acrylic roof coating both under and over the felt layer. - Page 27 Notes...
- Page 28 Technical Support / Training DOWNLOAD THE Available weekdays 08.30 - 16.30 APP! URE IT Tel: 03301 222666 G R P W A T E R P R O O F I N G S Y S T E M Email: technical@cureit.uk.com Web: www.cureit.com Download on the App Store...
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