Include lettering not less than 3 inches (76 mm) in height with a minimum 3/8 inch (9.5 mm) stroke in a contrasting color incorporating the suggested wording, “FIRE AND/OR SMOKE BARRIER–PROTECT ALL OPENINGS,” or other wording.

Besides, Can you use drywall around a fireplace?

Drywall + Fireplace = House Fire

Unfortunately, this is highly flammable and is not an appropriate or safe fireplace surround. The sheetrock had to be removed and replaced with any type of non-combustible surround – stone, tile, marble, or metal.

Keeping this in mind, How do you determine fire rating requirements? Fire-resistance ratings are determined by testing a mock-up structural assembly according to procedures in the American Society for Testing and Materials (ASTM) E119 Standard Test Methods for Fire Tests of Building Construction and Materials, available at www.astm.org The test also is known as NFPA 251, Standard …

Do firewalls have to be labeled?

Labeling Fire rated walls is a critical aspect of building construction and maintenance. Whether the wall is a one or two hour fire rated wall or smoke barrier, it is a legal requirement that the fire wall is appropriately marked. While there are multiple ways for the walls to be marked.

What constitutes a 2 hour fire wall?

Double the number of Type X sheets on the wall for a simple system installed over fire-resistant fiberglass insulation; each sheet of 5/8-inch Type X drywall is rated to resist fire for one hour, so two layers will produce a two-hour firewall.

What can I use for a fireplace surround?


Material Choices for a Fireplace Surround

  • STEEL. Steel is one of the most popular fireplace surround materials. …
  • WOOD. Wood is a less obvious choice for a fireplace surround than steel.. …
  • CONCRETE. …
  • STONE. …
  • BRICK. …
  • TILE.

How far does drywall have to be from fireplace?

The National Fire Code requires all combustible material to be at least 6 inches from the opening of the firebox. For every 1/8 inch of protruding combustible material, you must account for an additional inch of clearance.

Is drywall OK behind a wood stove?

Drywall is combustible and not a suitable material either for use behind the wood stove or for use underneath tile. Removing it from the wall behind the wood stove allows you to install cement backerboard instead. Cut right through the drywall using a drywall saw.

What are the requirements of fire rated assembly?

Although often used interchangeably, the terms are different. When a building assembly, such as a fire barrier, is required to be fire rated it must be reasonably airtight under increased air pressure on the fire side due to heated air expansion and must prevent the passage of heat and flame for a designated time.

What makes a 1 hour fire rated wall?

According to the Engineered Wood Association, a one-hour rating indicates that a wall constructed in a manner similar to the one tested will contain flames and high temperatures, and support its full load, for at least one hour after the fire begins.

How do you calculate fire resistance level?

The passing value is determined by the number of minutes in which there is no failure when tested in accordance with AS 1530 Part 4 fire test criteria. So when you see the fire resistance level expressed as 60/60/60 it means that each element passed for that number of minutes.

What are the firewall rules?


What are Firewall Rules

  • Determine what traffic your firewall allows and what is blocked.
  • Examine the control information in individual packets, and either block or allow them according to the criteria that you define.
  • Control how the firewalls protect your network from malicious programs and unauthorized access.

What are the 3 types of firewalls?

There are three basic types of firewalls that are used by companies to protect their data & devices to keep destructive elements out of network, viz. Packet Filters, Stateful Inspection and Proxy Server Firewalls. Let us give you a brief introduction about each of these.

Where should firewalls be placed in a network?

Firewalls are often placed at the perimeter of a network. Such a firewall can be said to have an external and internal interface, with the external interface being the one on the outside of the network.

What is considered a fire wall?

A firewall is an assembly of materials used to separate transformers, structures, or large buildings to prevent the spread of fire by constructing a wall which extends from the foundation through the roof with a prescribed fire resistance duration and independent structural stability.

How thick is a 2-hour fire rated wall?

A 2-hour rating can be achieved by a wall with an equivalent thickness of as little as 3 1/5 inches when expanded slag or pumice is used or 4 1/2 inches when siliceous gravel is used as the aggregate. For cored units, the equivalent wall thickness is calculated by multiplying the percent solid by the wall thickness.

How high does a fire wall have to be?

Other than the exceptions, vertical continuity of a firewall is required from the foundation to a point at least 30-inches above both adjacent roofs. A Firewall is similar to a Standard Firewall, but has protected openings and can have up to a 3 or 4-hour fire-resistance rating.

What materials can be used for a fireplace?


Fireplace Design Idea – 6 Different Materials To Use For A Fireplace Surround

  • STEEL. One of the most popular fireplace surround materials. …
  • WOOD. A less obvious choice for a fireplace surround, considering what you burn, is wood. …
  • CONCRETE. …
  • STONE. …
  • BRICK. …
  • TILE.

Can you use wood for a fireplace surround?

Is Wood Safe for Fireplaces? International Residential Code, a model code adopted by many municipalities, does allow for combustible materials, such as wood sheathing, to be placed directly on fireplace surrounds. However, all combustibles must remain at least 6 inches from the opening.

What is the surround around a fireplace called?

The mantel is located at the top of the fireplace surround, or top of the face of an open fireplace. … The mantel provides a shelf on which decorations and other items can be placed, but can sometimes help with preventing smoke from the fire from coming into the room.

How much clearance do you need around a fireplace?

The National Fire Code dictates that any combustible material (e.g., wood mantel or similar trim) must be at least six inches from the firebox opening. An additional inch of clearance is needed for every 1/8 inch the combustible material or trim protrudes.

How do you hang drywall around a fireplace?

When attaching plasterboard to a brick fireplace wall, you have two options: use construction adhesive to glue the drywall directly to the brick, known as the direct bond method, or mount the drywall with screws. Both methods require you to cover the joints with tape and compound.

How much clearance do you need for a chimney?

You’ll want particularly to see the California Chimney Code Section 2113.19 on Chimney Clearances. Chimneys must end at least 2 feet above any section of the building within 10 feet of them, and must be 3 feet above the section of roof it is built through.