SKU: 98449554913

Gibraltar Building Products 4-in x 20-in Galvanized Steel T-Top Vent and Pipe Flashing, RJ4B

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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22

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Description

Gibraltar Building Products 4-in x 20-in Galvanized Steel T-Top Vent and Pipe Flashing, RJ4B4 in Galvanized T Top Vent & Pipe Flashing Durable T top vent and pipe flashing built from professional grade 26 gauge bonderized galvanized steel. Designed for 4 in exhaust pipes, its paint ready to blend with roofing and suited for residential or commercial installations. Key Features: Professional 26 Gauge Steel: Bonderized galvanized construction delivers long lasting weather resistance. Paint Ready Finish: Pre primed surface allows easy painting

4-in Galvanized T-Top Vent & Pipe Flashing

Durable T-top vent and pipe flashing built from professional-grade 26-gauge bonderized galvanized steel. Designed for 4-in exhaust pipes, it’s paint-ready to blend with roofing and suited for residential or commercial installations.

Key Features:

  • Professional 26-Gauge Steel: Bonderized galvanized construction delivers long-lasting weather resistance.
  • Paint-Ready Finish: Pre-primed surface allows easy painting to match shingles and trim.
  • Optimized for 4-in Pipes: 4-in diameter opening with low-profile T-top disperses exhaust evenly.
  • Easy Roof Integration: Large base flange installs under shingles for a watertight seal.
  • Versatile Application: Suitable for bath, dryer, kitchen and other roof exhaust terminations.

Specifications Table:

Specification Details
Fits Pipe Size 4 in diameter opening
Material Bonderized galvanized steel, 26-gauge
Color/Finish Gray; paint-ready (pre-primed)
Base Dimensions Approximately 19 in x 15 in (retailer lists 20 in L x 16 in W)
Maximum Temperature 180°F
Use Roof exhaust termination for bath, dryer, kitchen or other ducts
Design Low-profile T-top with half-dome shield to distribute exhaust
Warranty None
UNSPSC 30151600
California Prop 65 Warning Yes

Frequently Asked Questions (FAQ):

Q: What pipe size does this flashing fit?
A: It is designed for 4-in diameter exhaust pipes.

Q: Can I paint the vent to match my roof?
A: Yes, it’s bonderized and pre-primed, so it’s ready to paint.

Q: What are the base dimensions?
A: Listed as approximately 19 in x 15 in on the spec sheet; Lowe’s also lists 20 in length and 16 in width.

Q: What temperatures can it handle?
A: Rated up to 180°F according to retailer specifications.

Q: Is it for residential or commercial roofs?
A: It’s suitable for both residential and commercial use.

A Clean, Low-Profile Roof Detail

This T-top vent creates a crisp, architectural punctuation on the roofline while keeping the profile discreet. The bonderized steel surface takes paint beautifully, letting you blend or contrast with shingles for a tailored finish. Pair it with a monochrome roof palette for a streamlined silhouette that feels intentional. It’s a small upgrade that elevates curb appeal with quiet sophistication.

Choose this paint-ready, 26-gauge galvanized T-top flashing to finish your 4-in roof exhaust with durable, low-profile performance.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 98449554913

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4.1 ★★★★★
Based on 14 reviews
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Product Reviews
C
Verified Purchase
Crosland
Lowell, US
★★★★★ 5
Great Serta Chair
Color: Black
Great chair. Definitely need two people to assemble. Heavy!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
M
Verified Purchase
Mr C
Omaha, US
★★★★★ 5
Comfort and Support
Color: Grey
If you're looking for an office chair with comfort and support in mind, then this is one you should consider. Item delivered on time as stated when purchased. Assembly instructions were quite clear, just make sure all parts are accounted for when opening box. Pay attention to the supplied screw sizing during assembly per the instructions. The supplied hex key, if used, will get the assembly job done, but would recommend using a cordless drill with clutch and appropriate sized hex bit for faster and less fatiguing hand work. Just be sure to start screws by hand first to make sure they start threading into the openings so you won't cross thread the screws. Once assembled, set the chair adjustments to your liking and enjoy a very nice looking, comfortable, and supportive office chair. I especially like the lumbar support built into this product. One last note, if you are going to use this product on hard surfaced floors it is recommended that you purchase soft office chair wheels (sold here on Amazon) because the wheels supplied are hard plastic and will scratch or mar hard flooring.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2020
J
Verified Purchase
Joseph W Gause
Port Orchard, US
★★★★★ 5
Exceptional value!!!
Color: White
The chair is of high quality and is easy to put together, even for a mechanically challenged person like me!! I purchased and assembled two of them!! It is very attractive and we have gotten compliments from those who have seen them. It is extremely comfortable and I would highly recommend.
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Reviewed in the United States on June 7, 2026
J
Verified Purchase
John a Norat
Battle Creek, US
★★★★★ 5
Great chair!
Color: Black
Had some issues with Delivery! But got the chair. Beautiful and comfortable. Had one once before as a gaming chair, same kind but bought it from walmart. I used to fall asleep in it all the time. Now i have it for work! One of the best chairs for the cheapest price you can get! If you want a more comfortable chair then this..... your looking at about 300 bucks. Which is next on my list! It comes with its own screws and washers. The manual is self explanatory however you do kinda gotta play the guessing game. It's pretty simple! match the screws up with the ones in diagram. It comes with an Alan wrench. Your hand might be a bit tired tho. I advise to tighten them with super lock tight or gorilla glue so they never come unloose. And gorilla glue the bolt covers on. Keep in mind if you use gorilla glue..... they will never come off. Lol. But as far as tighting it.... do not over tighten it. Tighten enough to where you have to put some pressure on it to turn it half way and stop. Another tip, it's a bit of a pain to set it up with one person. If you got an extra set of hands... use em. If not.... you might be their for a bit. Start with setting up base. Then put arms on seat. (Keep bolts loose but screwed in. You'll see why later when you tighten them down) Then attach back to arms and seat. (Now make sure bolts are in holes and tighten them down. But not at once! Do about 4 turns, move to another one. Then the other side. It's like tightening lug nuts on the wheel of a car. If you tighten one all the way down it will throw all the other bolts off and make it much more difficult to ease the bolts into the holes they go in) Then attach seat to base. Believe me. It's way easier if you do it like that instead of how the installation instructions say. After that, put the caps on the holes to cover the bolts. If you don't glue them, they will pop off ..... their not..... super good. But!!!! 1 or 2 drops of gorilla glue and you never have to worry about them popping off. (They seem like they go on their tight, but they don't stay on!)
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Reviewed in the United States on March 31, 2024
T
Verified Purchase
tverb
Port Orchard, US
★★★★★ 4
Nice chair but definitely not breathable.
Color: Black
Once I figured out the arms had a left and right...the chair was easy to put together. The faux leather is nice. The seat is (or will be once I break it in) very comfortable. I have 2 minor complaints. It is extremely straight up and down. I haven't had much chance to play with it to see if I can get it to recline even an inch. That would help. And number two, it's HOT. I'm going to have to get some sort of seat pad because the pleather is not breathable and every time I get up my bum is sweaty. I know, TMI. But all in all I think it will serve my purposes.
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Reviewed in the United States on April 16, 2026

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