What are firestop products?
Firestop products fall under the umbrella of passive fire protection. These are components like fire-rated doors, walls/floors and ventilation dampers that work together to contain a fire and prevent it from spreading beyond the point of origin. Passive design and construction measures compartmentalize a building.
What are intumescent materials?
An intumescent is a substance that swells as a result of heat exposure, thus increasing in volume and decreasing in density. Intumescent materials used in fire protection will increase their volume significantly under the influence of heat (approximately at 200°C).
What are intumescent coatings?
An intumescent is a coating that, when exposed to heat, is rapidly transformed through sublimation, and expands many times its original thickness (up to 100 times), to form a stable, carbonaceous char.
Where is firestopping used?
Firestopping is a fire protection system made of various components, and it is utilized in the sealing of joints and openings in fire-resistant rated walls or floor assemblies. The practice of sealing these joints, can be used anywhere that a roof meets a wall structure.
What material is used for fireproofing?
Common materials used include solid lumber, plywood, OSB, Particle board, gypsum board, cement fiberboard, or glass fiber insulation batts.
What is firestop fireproofing?
Fire stopping, also known as compartmentation, is a fundamental part of passive fireproofing. It refers to the process of filling openings and joints between walls and floors with fire-resistant material, inhibiting the spread of fire between ‘compartments’ within a building.
What is intumescent flame retardant?
Intumescent systems puff up to produce foams. They are used to protect combustible materials such as plastics or wood, and those like steel, which lose their strength when exposed to high temperatures, against the attack of heat and fire.
What is intumescent coatings for steel?
An intumescent paint is a coating that reacts to heat by swelling in a controlled manner to many times its original thickness, producing a carbonaceous char formed by a large number of small bubbles that act as an insulating layer to protect the substrate.
What is the difference between fireproofing and firestopping?
While firestopping helps prevent the spread of fire and harmful gases throughout your building, fireproofing protects the structural portions of your building to prevent collapse and irreparable damage during a fire. Fireproofing is most commonly applied to steel and concrete during your building’s construction.
How many types of fireproofing are there?
three
The three main types of fireproofing methods are cementitious fireproofing, intumescent fireproofing and firestop fireproofing.
What is firestop sealant?
Firestop Sealant
Firestop Sealants and Caulks are applied to gaps and voids made from penetrants through fire-rated walls. Firestop Sealants will stop the passage of smoke and flame through these voids during the event of a fire.
How long does intumescent paint last?
However, most water-based intumescent paints (once applied in a C1 environment) have a general lifespan of up to 20 years. It’s also worth noting that some types of intumescent paint will require top coats.
What is intumescent paint for steel?
An intumescent coating is basically a paint-like material which is inert at low temperatures – under 200 ◦C – but reacts with heat. As the temperature rises, during a fire event, the intumescent coating swells and forms a char layer that covers the steel.
What Colour is intumescent paint?
white
Jotun intumescent paints are usually white but they can be painted any colour with an approved topcoat. It is important to adhere to an approved paint system which is backed up by documents that you can show any inspector or building control.
Is intumescent paint expensive?
As intumescent fire resistive coatings can be quite expensive ($4 to $12 per square foot, depending on the application and required rating), measuring the coating thickness can play an important role in controlling the application costs. Proper adhesion is also essential to the effectiveness of these coatings.
How do I get a smooth finish with intumescent paint?
To ensure your painted steelwork looks as good as it performs, take care applying the paints and for the smoothest finish apply multiple thinner coats rather than a few thick ones. Make sure to clean and prepare surfaces as instructed before applying primer and coatings.
What is intumescent fire caulk?
WF300 Intumescent Firestop Caulk is a latex-based firestop caulk designed for residential wood frame construction. WF300 Caulk is tested for addressing penetrations through wood/frame construction such as wood stud walls and floor/ceiling assemblies.
How do you apply firestop sealant?
Installing a Firestop Sealant – YouTube
Can I paint over intumescent paint?
You can only over paint an intumescent strip which is designed for fire protection.
Does intumescent paint need primer?
For wood applications, no primer is required, but an all purpose acrylic primer is recommended to help limit the initial coat of intumescent paint absorbing into the wood substrate. Alternatively, a thin coat of our product can be applied to first seal the wood, followed by the full mil thickness requirement.
Can I paint on top of intumescent paint?
Can you paint over intumescent coating? Jotun intumescent paints are usually white but they can be painted any colour with an approved topcoat. It is important to adhere to an approved paint system which is backed up by documents that you can show any inspector or building control.
What can I use for fire caulking?
Is intumescent sealant waterproof?
A mastic, for its part, can be a cementitious adhesive, sealant or filler which is waterproof and remains flexible.
Can anyone install fire stopping?
The LFS team are fully qualified to install any fire barrier in accordance with test certification and manufacturers’ instructions across London. Fire stopping is complex but LFS has extensive experience and know-how to make sure your walls, roofs, floors, service risers and voids are fire resistant.
Can you paint over intumescent paint with normal paint?
Painting over an intumescent paint with anything other than an approved topcoat could require you to remove all coatings and start again! We can match most colours, including those from Dulux, Farrow and Ball etc, with an approved topcoat.