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Our Acoustic double door astragals are designed to effectively seal off the air gaps that create sound leaks where the doors meet. Just as you need acoustic door jambs to seal off the outside vertical sides and top of your door, these astragals are used to seal off the vertical meeting point at the center of double doors.
There are different meeting stiles (astragals) made for double doors. We have astragals for when you have only one active door, or for applications where both doors are used. When both doors are active, you will need a separate 328 stile or astragal for each door. If only one door is active, you only need a single stile or astragal for the active door.
These astragals are often used in conjunction with door jamb seals, automatic door bottoms, acoustic thresholds or Acoustic Door Seal Kits.
These products have a tolerance of +/- 1/8″.
Technical Information for Acoustic Double door Astragals
- Size: 84″, 96″ or custom as required
- Color: Aluminum
- Style:
- 140: For use when door set has one active door
- 328: For use when door set has two active doors
Installation Method
- Measure door height
- Cut astragal to length
- Position meeting stiles on pull side of the door
- Secure loosely with mounting screws
- Align pieces for a tight seal and completely fasten screws
- Adjust as necessary to allow doors to close and latch properly
Manufacturer Resources
Product Specs
- Product Group:
- Door Trim and Accessories
- Product Subgroup:
- Astragals, Gaskets and Weatherstripping
- Product Type:
- Gasketing
- Commercial/Residential:
- Commercial
Zero International 328AA-S-36X84 – Frequently Asked Questions
1) What is the Zero 328 gasketing used for?
The Zero 328 is aluminum non-mitered head and jamb gasketing with solid neoprene seal. It creates weatherproof seals at door heads and jambs. Commonly used on commercial doors and frames.
2) What door types is this gasketing compatible with?
Compatible with most commercial steel and aluminum door frames. Works on single and double doors. Verify frame rabbet dimensions before ordering. Check manufacturer specifications for compatibility.
3) Does this work for both left and right hand doors?
Yes, the Zero 328 is universal for both left and right hand doors. The non-mitered design allows installation on either handing without modification.
4) What finishes are available for the Zero 328?
Standard aluminum mill finish is most common. Other finishes may be available through special order. Contact manufacturer for finish options on larger quantities.
5) What is the weather seal performance rating?
The solid neoprene seal provides excellent weather resistance. Specific performance ratings depend on installation and door system. Verify complete system ratings with manufacturer data.
6) Does this meet building code requirements?
Zero products are designed for commercial code compliance when properly installed. Verify local code requirements with your jurisdiction. Some applications may require specific ratings or certifications.
7) What mounting hardware is included?
Mounting screws are typically included with the gasketing. Verify contents before installation. Additional fasteners may be needed depending on frame material and conditions.
8) How is the Zero 328 installed?
Mount to door frame head and jambs using provided screws. Cut to required lengths with hacksaw. Follow manufacturer installation template for proper positioning and seal compression.
9) How long does the neoprene seal last?
Neoprene seals typically last 10-15 years in normal conditions. Inspect annually for wear or damage. Replace when seal shows cracking or loses compression. High-traffic doors may need more frequent replacement.
10) Are there other Zero gasketing options available?
Yes, Zero offers many weatherstripping and gasketing options including different seal materials and mounting styles. Consider your specific door system requirements.
11) What door weight limits apply?
This gasketing is suitable for standard commercial door weights. Verify door weight capacity with your frame manufacturer. Heavy doors may require additional support or different gasketing solutions.
12) How do I measure for the correct length?
Measure door frame head width and both jamb heights. Add 10% for cutting and trimming. The 36" x 84" sizing accommodates standard door openings but verify your specific frame dimensions.
How fast can I get the Zero International 328AA-S-36X84 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Zero International 328AA-S-36X84 come with a warranty?
Absolutely. The Zero International 328AA-S-36X84 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Zero International 328AA-S-36X84?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Zero International 328AA-S-36X84 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.