Protect P1 Fibre Reinforced Roof Coating: What It Is and How to Choose Your Pack
When a roof needs maintenance, choosing a coating involves more than picking a colour. You need to understand what the product does, which surfaces it is intended for and how much you will need.
Protect P1 is a solvent-based acrylic roof coating containing reinforcing fibres, designed for general roof maintenance and repairs. Available in grey and black, it comes in single 5kg tins and multipacks containing two or four tins.
This guide explains the product’s main features, its listed uses and the practical considerations that can help you choose the right Protect P1 roof coating pack.
What is Protect P1 roof coating?
Protect P1 is a liquid coating applied to a suitably prepared roof surface to form a continuous protective layer. Its high-build formula contains reinforcing fibres that help bridge small gaps and cracks.
Unlike a roof covering supplied in sheets or rolls, a liquid coating is applied using a brush, roller or squeegee. This allows it to follow the shape of the surface being treated.
The current product guidance describes Protect P1 as a one-coat product for roof maintenance and repairs. Suitability depends on the roof material, its condition and any existing treatments, so these should be checked before application.
What does fibre reinforced mean?
“Fibre reinforced” means the coating contains fibres within its formula. In Protect P1, these fibres help bridge small gaps and cracks as the coating forms a continuous barrier.
This is a useful feature for maintenance work, but it is important to understand its purpose. The fibres reinforce the coating; they do not repair a rotten roof deck, strengthen a weakened structure or replace missing roofing materials.
A roof with significant damage may need repairs before a coating can be considered. Protect P1 should therefore be selected after assessing the surface, rather than used to cover an unidentified problem.
What are the main features of Protect P1?
A coating for roof maintenance and repairs
Protect P1 is intended for general maintenance and repair applications on suitable roofing surfaces. It provides an option for customers considering a liquid-applied coating, subject to checking the condition and construction of the roof.
Reinforcing fibres to help bridge small gaps
The fibre reinforced formula helps bridge small gaps and cracks within the applied coating. The published guidance does not specify a maximum crack size, so larger defects or moving joints need assessment rather than an assumed coating solution.
One-coat application
The product listings describe application in one coat using a brush, roller or squeegee. Applying the correct quantity matters: spreading the coating too thinly to cover a larger area departs from the stated application guidance.
Grey and black finishes
Protect P1 is available in grey and black. Customers can choose the finish appropriate to their project while selecting the total quantity separately.
Single tins and multipacks
Every tin contains 5kg. The larger options combine identical-size tins to provide 10kg or 20kg in total, making it easier to select a quantity for the measured application area.
Which surfaces can Protect P1 be used on?
The current Protect P1 product pages list:
- Weathered asphalt and bituminous surfaces.
- Felt.
- Fibreglass.
- Concrete and brickwork.
- Galvanised and ferrous metal.
They also describe use on flat and pitched roofs and gutters.
How much roof area does Protect P1 cover?
The published application rate is approximately 1–2kg per square metre, depending on surface condition and porosity.
Porosity describes how readily a surface absorbs material. This means a pack’s coverage is an estimate, rather than a fixed area that applies to every roof.
| Total pack weight | Approximate theoretical coverage |
|---|---|
| 5kg | 2.5–5m² |
| 10kg | 5–10m² |
| 20kg | 10–20m² |
These figures are calculated from the application rate published on the Protect P1 Grey 20kg listing. Surface condition and porosity affect actual consumption.
What is included in each Protect P1 pack?
Protect P1 is available in six colour-and-weight combinations. The larger packs contain multiple 5kg tins, rather than one larger container.
| Colour | Total weight | What you receive |
|---|---|---|
| Grey | 5kg | One 5kg tin |
| Grey | 10kg | Two 5kg tins |
| Grey | 20kg | Four 5kg tins |
| Black | 5kg | One 5kg tin |
| Black | 10kg | Two 5kg tins |
| Black | 20kg | Four 5kg tins |
Choose the total quantity according to the application area and surface requirements. A single tin may provide enough material for a smaller area, while a multipack supplies more coating for a larger project.
How is Protect P1 applied?
The best application is using a brush, roller or squeegee.
Before applying the coating, the surface must be clean, dry and free from loose debris, moss, lichen, dirt, grease and standing water. Preparation helps ensure the coating is applied to the intended surface rather than to contamination or loose material.
The published application process is:
- Confirm suitability and prepare the surface.
- Stir thoroughly before and during use to maintain an even consistency.
- Apply evenly at the stated rate, working towards a continuous coating.
- Follow the product’s drying and curing instructions.
The listings give an application temperature range of 5°C to 25°C. They also state that most roofing substrates do not require a primer, but the requirement should be confirmed for the particular surface.
How long does Protect P1 take to dry?
Protect P1 becomes touch dry in 3–4 hours and reaches full cure in 6–7 days.
These are different stages. A touch-dry surface does not mean the coating has fully cured, and neither figure establishes when the roof can be walked on.
Protect P1 is water resistant immediately after application. This should not be interpreted as permission to apply it to a wet roof or during rain: the published preparation guidance requires a dry surface without standing water.
Check the current label and obtain advice on the weather conditions for your project before starting.
What should you check before buying?
A few checks can help you decide whether Protect P1 is appropriate and avoid ordering the wrong quantity.
Identify the surface. Establish the roof material and any existing coatings or treatments.
Assess the condition. As general roofing advice, significant damage, a soft or sagging deck, persistent ponding or recurring unexplained leaks need assessment before coating.
Measure the application area. Use the area and appropriate application rate to calculate the material requirement.
