Easy2 Technologies - Installing a Ridge Vent Product Demo

Installing a Ridge Vent Instructions

  • Installing a Ridge Vent

    Your roof needs to be ventilated to protect the shingles and attic from excessive heat build up. Simply put, a flow of air enters through soffit vents, and then flows up through the rafters and out through a ridge vent. Installing ridge vents is a fairly aggressive project. Don’t attempt this project if you are uncomfortable with heights or uncertain about your carpentry skills. It is also not a project that can be left unfinished for any amount of time because you are opening your roof to the elements. Keep in mind that whenever you are working on ladders and high places, make sure you take proper precautions. Your ladder should be placed on firm ground and angled appropriately.

  • Overview

    The basic steps to completing this project are to first, remove the existing shingles. Next, saw the sheeting to open the roof. Then you will install the ridge vent, and finally replace and secure the shingles.

  • Remove Shingles

    Using a flat bar, carefully peel off the shingles that form the ridge cap on your roof. Be sure to save the shingles to reinstall on top of your new ridge vent, but be gentle as it is easy to damage them. Peeling off the shingles in the late morning is best because the shingles are pliable, but not too hot. Remove shingles all the way to the peak of a roof at a gable end, but be sure to leave 8 to 10 inches of shingles near any walls or chimneys. Using a chalk line, strike a line on either side of the ridge board 7/8 of an inch down from the ridge board at the peak of the roof. If you have trusses, you should strike the chalk line so that it will create a gap 1-3/4 inches across the peak when you get to the cutting step.

  • Cut Sheeting

    Next, you will cut the sheeting with your circular saw. At the peak of the roof, you should be able to see an edge of the sheeting boards. Use a tape measure or ruler to measure the sheeting thickness and then set your saw depth to the thickness of the sheeting. Avoid cutting in the rafters and make sure to wear eye protection. And unless you are using a carbide blade, you will need to use a utility knife or hook knife to cut off the shingles and tarpaper along the chalk line. Following the chalk line, cut both sides of the peak. Remember to leave 8 to 10 inches near a wall or near a chimney. So that you can completely remove the final piece of sheeting, you may need to use a wide chisel to cleanly sever the wood perpendicular to the saw cuts. Use a pry bar to remove the sheeting that you just cut. Be sure that you remove any nails left behind in the exposed part of the rafters.

  • Place & Secure Vents

    There are several types of ridge vents – mesh vents, corrugated vents, and baffled vents, which are suggested because they prevent backflow. Install the new ridge vents using long roofing nails, which should be long enough to penetrate through the vent, shingles, and securely into the sheeting beneath the shingles.

  • Reinstall Shingles

    Using 1-1/2 or 1-3/4 inch roofing nails, cover the roof vent with the shingles you removed in the first step. If necessary, use new shingles that match your existing roof. It’s time to go inside and check your work!

  • Create Attic Airflow

    As long as you have a soffit vent or another intake vent, your new ridge vent should now provide outflow for the air in your attic. To test airflow, wet your fingers and put your hand near the gap you cut in the roof sheeting. You should feel a slight airflow out of the attic. Or you can light a match, quickly blow it out, and hold it up to the gap in the roof. The smoke from the match should flow out through the ridge vent. If you don’t detect proper airflow, you might not have enough intake ventilation. Add soffit vents or an exhaust fan, and you should be all set!


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