At Western Metal Deck, we have sales reps who have previous experience installing metal draft curtains on projects. When a customer calls in confused because they have a draft curtain included in their scope of work, we’re able to talk them through some of the details.
If you happen to find yourself working on a project that requires you to install the metal draft curtain, this article is for you. We will go over what a metal draft curtain is, how they are constructed, and what panels are commonly used.
A draft curtain is a divider that drops down usually directly beneath the roof of a large warehouse or a big box store building. They’re put in place to slow down the spread of smoke from one section of the roof to the next section.
When you have a large open building, trying to limit the damage from a fire can be tricky because smoke travels quickly and can cause excessive damage. Draft curtains are used to slow down the spread of the smoke and funnel it out through roof vents.
Some common types of metal panels used in draft curtains include the following:
A draft curtain consists of light angle framing hanging from the roof framing. The metal decking or metal siding sheets are fastened to the light angle framing. The sheets hang perpendicular to the roof and are usually between 4 feet and 6 feet long.
The draft curtain creates a fence in both directions on the bottom of the roof. The result is that the roof is divided up into different individual sections.
If a fire occurs and smoke begins spreading to the roof, the spread of the smoke is slowed down because it is contained in the individual sections. The draft curtain cannot prevent a fire, but it can slow down the spread of the smoke and resulting damage.
When designing a project, cost is always an important factor to consider. Other important factors to consider are: what product might do a better job, last longer, and which panel will look better.
The architect or engineer of record will specify the design of the draft curtains including which panel to use, which gauge to use, and which finish to use as well.
Typically when it comes to a metal draft curtain the look isn’t a huge priority. The metal draft curtains hang down from the roof, which are usually over 30 feet off the ground. In this case, the design of the panels is pretty hard to make out from ground level.
A metal draft curtain doesn’t come prefabricated, so the cost will come down to the cost of the panels and the light angle framing.
A lighter gauge panel such as siding and roofing panel will cost less, since it is coming out of lighter steel. Metal decking panels normally come in heavier gauges, but they are also sturdier.
A roofing panel such as the PBR panel in 26 gauge can cost you anywhere from $1-$2 per square foot. A metal decking panel such as B-deck in 20 Gauge can cost around $3-4 per square foot.
To calculate how much the material will cost, you will need to know or gather a list of materials required. Pricing of panels and angle can vary so you want to get a current cost on your bill of materials.
At Western Metal Deck we stock and supply both metal deck and metal roofing/metal siding. We also carry light gauge angles and fasteners. We can provide you with a free quote for your materials, including cutting your panels to the exact lengths you need them to.