Fire Rated Heavy Duty Kit (600g)
Used where the project needs a fire-rated GRP roofing route or upgraded specification.
Upgraded Fire Performance Options
Fire Rated GRP Roofing Kits
Shop fire-rated GRP roofing kits, fire-rated fibreglass roofing kits and upgraded flat roofing kits for projects where fire performance or building control requirements need to be considered.
BROOF(t4) certified kits
For projects where building control requires fire-rated roofing performance. Available in 300g, 450g and 600g.
Fire Rated Light Duty Kit (300g)
Used where the project needs a fire-rated GRP roofing route or upgraded specification.
Fire Rated Standard Duty Kit (450g)
Used where the project needs a fire-rated GRP roofing route or upgraded specification.
Showing all 5 resultsSorted by price: low to high
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450g GRP Roofing Kit – Fire Rated System
Price range: £78.33 through £1,197.49Select options This product has multiple variants. The options may be chosen on the product page -
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300g GRP Roofing Kit – Fire Rated System
Price range: £150.83 through £575.83Select options This product has multiple variants. The options may be chosen on the product page -
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450g GRP Roofing Kit – Fire Rated System (Includes Tools)
Price range: £161.66 through £455.83Select options This product has multiple variants. The options may be chosen on the product page -
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300g GRP Roofing Kit – Fire Rated System (Includes Tools)
Price range: £164.99 through £593.33Select options This product has multiple variants. The options may be chosen on the product page -
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600g GRP Roofing Kit – Fire Rated System
Price range: £214.16 through £1,427.49Select options This product has multiple variants. The options may be chosen on the product page
Quick category guideQuick guide to Fire Rated GRP Roofing Kits
This category is for installing a GRP flat roof where fire-rated roof performance is required. Use it to check the product type, surface compatibility, preparation work and related CRS options before ordering.
Choosing guide
Need help choosing?
Use these quick checks to make sure this category suits the job before ordering.
What is this category for?
Choose Fire Rated GRP Roofing Kits for installing a GRP flat roof where fire-rated roof performance is required.
Good choice when
- Use this category for installing a GRP flat roof where fire-rated roof performance is required.
- Use it when the surface is new OSB3 or suitable timber roof deck.
- Use it when the measurements, preparation work and related accessories have been checked.
Not the right choice if
- Do not use this category when the existing roof only needs a quick repair, coating or overlay rather than a new GRP system.
- Do not use it when the roof is unsafe or unsuitable without preparation.
- Do not use it as a shortcut if another CRS system is a better fit.
Next step
Choose the fire-rated kit weight, check the roof size and match it with the correct trims.
Also useful for
- Fire Rated GRP Roofing Kits
- Fire rated GRP fibreglass roofing
- New flat roof
- GRP roofing kit
- fibreglass roof kit
- flat roof kit
- OSB3 roof deck
Related pages
BROOF(t4)Certified
300g–600gOptions
4.6★1,300+ reviews
UKStock
BROOF(t4) certified kits
For projects where building control requires fire-rated roofing performance. Available in 300g, 450g and 600g.
Do I Need A Fire Rated GRP Roofing Kit?
Fire-rated GRP roofing kits are intended for projects where an upgraded fire performance specification may be required. This can include certain extensions, boundary situations, building control requirements or project specifications where a standard GRP kit may not be enough.
Building Control Projects
Useful where the roof specification needs to consider upgraded fire performance or compliance requirements.
Not Sure?
Check local building control or project specification before ordering, because site requirements can vary.
Standard Domestic Roof?
If fire-rated performance is not required, standard 450g kits may be suitable for garages and extensions.
Heavy Duty Requirement?
For stronger laminates rather than fire specification, compare heavy-duty 600g GRP kits.
Why CRS
BROOF(t4) certified — meets BS 476 part 3 / CEN/TS EN 1187-4
For projects where building control or specification requires fire-rated roofing
Available in 300g, 450g and 600g laminate weights
Check with building control if unsure whether fire-rated is required
Same OSB3 deck and primer preparation as standard GRP kits
TekGuard Flexi-GRP available as the liquid-applied fire-rated overlay alternative
Not right if
Existing roof needing repair or overlay — not a new deck
Rotten or structurally failed deck — replace deck first
What is a fire-rated GRP roofing kit?
A fire-rated GRP roofing kit is a fibreglass flat roof system designed for projects where upgraded fire performance may be required.
When do I need a fire-rated GRP kit?
You may need a fire-rated kit where building control, project specification or roof location requires upgraded fire performance. Always check the requirements for your project.
Are fire-rated GRP kits suitable for extensions?
They can be suitable where an extension roof requires an upgraded fire performance specification, but requirements should be checked before ordering.
Is fire-rated GRP the same as standard GRP?
No. Fire-rated GRP kits are intended for projects needing upgraded fire performance, while standard GRP kits are used for general flat roofing projects.
Can CRS confirm my building control requirements?
CRS can help you choose products, but local building control or your project specifier should confirm the exact fire performance requirements for your roof.
Fire Rated GRP Roofing Kits For Flat Roof Projects
Fire-rated GRP roofing kits are designed for flat roof projects where upgraded fire performance may be required. They are useful where building control, project specification or roof location means fire performance needs to be considered before choosing a standard GRP system.
Always check the requirements for your project before ordering, especially for extensions, boundary conditions and controlled works. Fire performance requirements can depend on the building, location and specification.
Fire Rated vs Standard GRP Roofing Kits
Standard GRP roofing kits are suitable for many domestic flat roofs. Fire-rated GRP kits are used where an upgraded specification is required or where the project calls for improved fire performance.