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Galvanized Steel Dome for Roof Mount Power Attic Ventilators in Mill

Quick Overview


Replace your worn or damaged dome to keep your attic protected from the elements and your fan operating efficiently. This dome kit includes the screw and spring nut hardware and can be used to replace older model plastic domes by removing the existing 3 brackets and reinforcement ring and replacing them with the brackets included with this replacement kit.

This dome is compatible with our roof mount power attic vents and round static vents when used with the enclosed brackets.

  • 26 in. diameter, galvanized steel construction in mill finish
  • 6 point outer rim attachment. Includes 6 brackets and hardware.
Instructions Click Here for Installation Instructions
Primary Color Mill
Secondary Color None
Unit Weight 5 lbs.
Box Dimensions 26 in. x 6 in. x 26 in.
Listings None
Associated Brands Cool Attic, Ventamatic
Single Product UPC 047242531008
Country of Origin - Assembly Not Available at this Time

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XXMETAL-DOME - Mill Finish Galvanized Steel Dome for Roof Power Attic Ventilators is rated 4.9 out of 5 by 9.
Rated 5 out of 5 by from Good replacement Bought to replace plastic cover that the sun destroyed and wind blew off. Took a little over and hour. Hardest part was removing the ring and old metal ring due to rust. Used all 6 brackets since it is metal and heavier. Drilled three holes in between the existing holes. Don't worry the brackets have a little bit of play if holes are not exact. Also used tin snips for the metal wiring. Ordered on a Friday, arrived Tuesday.
Date published: 2019-09-10
Rated 5 out of 5 by from Roof Vent Dome was a good replacement I re-roofed this year and now have a ridge vent, therefore, I don't think I really need the fan driven vent anymore. Nevertheless, the old vent cover was fiber or plastic construction, and broke apart and fell off in high winds, leaving a hole in the roof I needed to cover, and I was very surprised that I could not find a replacement in the local big box stores. Anyway, the old one was fastened via thee screws through the top rather than the six perimeter screws that this new one has. The instructions said that, if replacing a three-screw style, to remove the existing mount bracket and use the new individual six brackets instead. Well, removal of the existing bracket assembly did not look as simple as indicated, so I improvised and was able to bend the supplied brackets in reverse direction and mount it using the existing three posts. However, I didn't think that three screws would be enough because this vent cover is metal and heavier than the composite one I was replacing. So, I used the other three brackets that came with the new dome and screwed them in as described in the instructions. So, I have a blend of three using the existing mount assembly and three attached as in the instructions, all 120° symmetrically mounted, of course. It is on there very solid and seems much more robust than the old one, so I am a very happy customer. I just hope the galvanized coating holds up or else the thing will begin to rust. I suppose I could always paint it later if needed so it stays looking good.
Date published: 2016-12-10
Rated 5 out of 5 by from Perfect Fit, huge improvement Bought this to replace the old plastic version that was badly damaged from sun rot and so brittle it would literally fall apart in your hand. (and really, why was the dome ever plastic in the first place? I would give that a zero star review) This metal version is huge improvement in quality and was an easy install. It includes little clips so the screws it comes with will work in the larger existing mounting holes. That was probably the hardest part, lining up the clips without dropping them into the attic. If you had to you could drill new holes, but I liked being able to easily line it up with with existing holes, do those first then drill for the 3 additional brackets. It comes with 6 brackets, it would probably be fine just using the 3 but I went ahead and put in all 6, it was easy enough and it makes it all that more sturdy. From the time I got up on the roof it probably took me 30 mins to completion.
Date published: 2019-03-15
Rated 5 out of 5 by from Perfect replacement I was replacing an older plastic cover that had only three mounting brackets. The instructions say you can reuse the holes for these brackets and drill three new holes, but I could not make this work due to different screw sizes in the old bracket holes. So I just drilled six new holes. Worked out great.
Date published: 2017-05-10
Rated 5 out of 5 by from Better than expected I purchased this dome for a customer that had lost their plastic dome. The new metal dome fit perfectly. I order the dome on Thursday and it didn’t ship until the following Wednesday.
Date published: 2019-04-05
Rated 5 out of 5 by from Fast shipping and easy installation! We found our old plastic cover had cracked so we bought a new galvanized steel one. It was easy to change out and it shipped quickly. Got it up right before a bad storm.
Date published: 2017-05-21
Rated 5 out of 5 by from Good replacement Bought this hood to repair storm damaged unit. Was exactly what I needed. Customer service was excellent.
Date published: 2017-06-02
Rated 4 out of 5 by from Installation Product shipped very quickly. Just as described. However the instructions absolutely SUCKED.
Date published: 2017-05-06
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Please note that replacement parts are only intended for use with products manufactured by Ventamatic, Ltd. Use or installation of parts outside of Ventamatic products are at the customer's discretion and may void any warranty extended on the part. Ventamatic is not responsible for issues arising from parts used or installed outside of Ventamatic products. 

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