Internet #100533902

Model #UPV14480

Store SKU #739684

Provent 14 in. x 4 ft. Rafter Vent

  • Promotes attic ventilation
  • Can be cut to fit spaces
  • Provent 14 in. x 4 ft. Attic Ventilation System
  • See More Details

Product Overview

The Provent 14 in. x 4 ft. Rafter Vent helps keep air flowing in your attic. The ventilation system is made of tear-resistant plastic to help prevent breakage and can be cut to fit most joist spaces. Install the ventilation system between rafters to provide an air channel through insulation to help keep air flowing freely from soffits to ridge vents.
  • Install between rafters in an attic to provide an unobstructed air channel through insulation to help keep air flowing from soffits to ridge vents
  • Installs easily in both new and retrofit applications
  • Can be cut to fit most joist spaces
  • Cathedral ceilings require a continuous run of vents from intake to exhaust with a 1 in. space between each vent
  • Made with pro-grade, tear-resistant, high-impact plastic
  • Plastic construction is rigid to help prevent breakage during re-insulation
  • Full-joist coverage to provide excellent air flow
  • Easy to transport and store at the job site
  • How much do you need? Let our calculator help:
    Insulation calculator button

Info & Guides

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Specifications

Dimensions

Product Depth (in.)
48
Product Height (in.)
2
Product Width (in.)
14

Details

Insulation Accessory Type
Rafter Vent
Insulation Features
Moisture Retardant
Insulation Type
Accessory
Number of Pieces
1

Warranty / Certifications

Warranty Information
Limited Warranty

Questions & Answers

21Questions21Answers

Do these act as a vapor barrier?

Asked by Bb March 3, 2018
4
Answers

Yes and no, we do not sell them as a vapor barrier (when I think of a vapor barrier I think plastic sheeting to cover entire area). However, if you do not leave 1" gaps between individual vents in a cathedral application you will have water build up and it will travel to the lowest point. So it will act as a vapor barrier between joists in cathedral applications - meaning a run of vents from soffit to exhaust vent at the top your roof if you do not leave spacing between vents. We do recommend 1" spacing between each vent in cathedral applications unless using a spray foam.

16 on center with a cathedral ceiling & spray foam insulation - do you still leave a one inch gap...

Asked by PJ January 5, 2017
3
Answers

open cell can be sprayed against the roof deck close cell has to be vented... not sure if this product will hold up to the weight

I want to use as a seal to close off the ventilation for an outside kitchen that has been closed ...

Asked by Robinhood November 13, 2019
3
Answers

it is very thin as an insulation barrier

My current attic does not have these. Looking to add r30 unfaced insulation but not sure if i need these since currently my attic does not have them?

Asked by Tmcd October 21, 2018
2
Answers

Yes you need these with insulation batts. They allow air to move from your soffit vent through to the ridge vent. If you don't have them the insulation batts will block the air movement.

Has anyone used this to dense pack cellulose in a cathedral ceiling? Do they collapse in the middle?

Asked by bob April 18, 2017
2
Answers

As the vent sits on the under side of the roof and the insulation below it, I think gravity works in your favor. That is unless you really pack the insulation in, but in that case, highly packed insulation would reduce it's r-value.

What is the R value?

Asked by Mkflanagan March 14, 2017
2
Answers

I believe it's plastic which would have insignificant R-value.

Can you use these these in a basement to keep unfaced insulation inplace

Asked by Mitch July 13, 2019
2
Answers

No. Use wire batt supports.

One inch spacing question

Asked by SMWlliams July 18, 2020
1
Answer

No it is not better, it could then drip on your ceiling. The reason for the one inch spacing is so that the moisture travels out with the air that is moving from soffit to ridge vent. All houses have some type of moisture in the air, which comes from showering, bathing, cooking, or a new house drying. If you have further questions please call 866-240-4933 then select Retail.

Are these strong nough to withstand 6 “ if closed cell spray under them?

Asked by Ali July 6, 2018
1
Answer

Yes the product will hold up to spray foaming, just apply the spray foam in thinner layers. We do have a new product called a proVent baffle which we made specifically for spray foaming. It is the same material however it has additional features - it has cones which help to keep the 1" of airflow, it can be used as a vent or a baffle (baffle means it attaches to the top plate as well as the roof deck and truss). These will be hitting some retail shelves and websites in fall. You can call us for more information 800-666-8191.

After installing baffles I’m going to be blowing in cellulose insulation. how do I prevent cellul...

Asked by Insulator November 14, 2020
1
Answer

Typically I would say purchase Windblock - however there is a shortage of product until February 2021. Your next best thing to do is roll up in-faced fiberglass insulation and tuck between the toplate and the underside of the vent. This forces air to channel through the vent and will prevent your insulation from being blown away from your outside wall (causing cold spots on your ceiling in the winter). Call 866-240-4933 select Retail if you have questions.

Provent 14 in. x 4 ft. Rafter Vent - page 2

Customer Reviews

  • 56 Customer Reviews
  • 4.6 out of 5 stars overall
95% of customers recommended.
Overall Ratings
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Well priced, easy to install and availability at store was convienent.
Well priced, easy to install and availability at store was convienent.
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These worked as designed and we very easy to install.
These worked as designed and we very easy to install.
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Often an over looked product. The install is quick and easy and adds years to your roof, walls an...
Often an over looked product. The install is quick and easy and adds years to your roof, walls and insulation. We use this product frequently @ Catamount Restoration Services Manchester Vermont crsvermont.com
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Rating provided by a verified purchaser
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This product was very easy to install....
This product was very easy to install.
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Like it better than comparable foam products especially in existing tight spaces. It does not sn...
Like it better than comparable foam products especially in existing tight spaces. It does not snap and break as easily.
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The rafter vent went in with ease. They are light...
The rafter vent went in with ease. They are light weight and provide rafter bays ventilation.
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These were very easy to work with and took staples well. The only improvement that I would recom...
These were very easy to work with and took staples well. The only improvement that I would recommend is that they be deeper: 14x4 is good, but the depth (Z-axis) could be an inch more.
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Easy to cut. Easy to install....
Easy to cut. Easy to install.
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