How To Cut Metal Roofing To Fit Valleys

On a metal roof, a valley is formed by ii intersecting slopes. Installing valley trim to this area of your roof prevents water from traveling up the opposite slope and penetrating your roof. Without the trim, water tin can easily become trapped with snow, leaves, and other debris.

Valley trim is an integral part of keeping your roof watertight, and even the most expensive materials won't protect your roof from water penetration if information technology isn't installed properly. Hither y'all will find all the steps y'all demand to ensure your valley trim is properly installed to protect your metal covering.

In this article we volition comprehend:

• What Is Valley Trim?
• How Much Does Valley Trim Cost?
• Required Tools And Supplies
• Valley At Eave Installation
• Valley At Ridge Installation
• Fastening Valley Trim
• Overlapping Valley Trim

Before yous brainstorm with your valley trim, remember that roofing underlayment is a crucial role of whatsoever metal roofing system. Prior to installing your valley trim, make sure that proper underlayment has been placed. At Western States Metal Roofing, our goal is to brand your installation every bit piece of cake as possible.

It's also important to review the manufacturer's installation guide that is designed to assistance you install your valley trim on your metal roof.

What Is Valley Trim?

Valley trim is a raised section at the everyman point of the valley that'due south designed to keep water from moving upwards the opposite slope and penetrating the roof. Valley trim is installed prior to the installation of the metal roofing panels. The valley of a metal roof is an area created past two intersecting slopes.

How Much Does Valley Trim Cost?

The price of the valley trim volition depend upon the gauge, blazon of pigment finish, and the size of the valley trim. On average valley trim will cost $3 to $six per lineal pes.

What Tools And Supplies Are Required For Valley Trim Installation

• Metal Cutting Snips
• Carpenter'south Pencil
• Hammer
• Roofing Gloves
• Caulking Gun
• Silicone Sealant
• #ten 10 i" Pancake screws

When measuring your valley length, yous will demand to account for a minimum i" overhang and 12" for overlaps. A minimum of iii" will besides exist needed for ridge prep.

How To Cut And Finish Valley Trim At The Eave Of A Metal Roof

1. Valley trim installation should begin at the eave cease of your roof.
2. Place the lower valley trim in your desired position. Annotation: Don't forget to account for an overhang minimum of 1".
3. With your carpenter'south pencil, outline where the valley intersects with the eave finish of the roof.
4. With your snips, cut along the outline, stopping your cut at the seam of the valley.
5. Adjacent, measure ii" from the top of your outline and brand a straight cut through the seam. TIP: Pulling the flaps up will assistance make cutting easier.
6. Mark a 90 degree line on both sides of the seam.
7. Notch cut straight in the centre of the seam to your line.
8. Remove both flaps of the valley.
9. Cut the left flap at a 45 caste angle. TIP: Yous may need to trim every bit needed to go a tight fit.
10. With your hammer, lightly tap the left flap inward at a 90 caste angle.
11. Adjacent, utilize your hammer to fold the right flap inward at a xc caste bending.
12. Trim the flap to allow information technology to fully bend at 90 degrees.
13. Cutting flap along the valley seam
14. Mark the corners of the flap where they intersect with the valley edge line.
15. Using this mark as your guide, cut off the excessive flaps.
16. Using your hammer, tap inward 90 degrees.

Just in case you are more than of a visual learner we created a footstep by step installation video. A lot of our customers will watch the open valley installation video and print the blog to aid them during the valley trim installation.

How To Cut And Finish Valley Trim At The Ridge Of A Metal Roof

1. Lay Valley at the ridge and brainstorm tracing the elevation outline.
2. Mensurate the acme of your valley's seam.
3. Based on that peak, mark the center of your seam.
4. Connect the corners to the center of your marker.
5. Draw a straight line down the seam to your 2 inch mark.
6. One each side of the valley, draw a parallel line 3 inches to your trace.
7. Setting your protractor to ninety degrees, marking a straight line from the seam border to the valley border.
8. Repeat this process for the opposite side.
9. Sections you volition remove are highlighted red beneath:
10. Using your metal snips, begin cutting the outer section
11. Cut directly downwardly the middle of the seam.
12. Use a drip edge hemming tool and brainstorm folding the flaps based on the pitch bending of your roof.
13. Using a hammer, tap down both seam flaps at a 90 degree angle.

How To Fasten Valley Trim On A Metal Roof

1. Place the valley in the right position. Annotation: Practise not forget to account for a minimum 1" overhang.
2. Prior to fastening valley trim, be sure to remove all protective plastic from your valley.
3. Silicone sealant should exist placed 1" from the eave trim edge where the valley will overlap.
4. Secure your valley using your 10# ten 1" pancake screws approximately 12" apart and i" from the edge.
5. On the eave end of the valley, cut off your short corners by removing the ane" tabs on each side.

How To Overlap Valley Trim On A Metal Roof

Before overlapping, remember that your valley should be overlapped a minimum of 12". To overlap:

1. When overlapping the valley trim, silicone should be practical one" from the bottom of the valley overlap.
2. Secure overlap with your 10# x 1" pancake screws. Locate screws 12" O.C.
3. Your valley is at present ready to be chalked and prepped for rooftop installation.

If this video helped yous check out our YouTube Channel for more step by pace installation videos.

About Paul Rubio

Paul Rubio is the Vice President and one of the owners of Western States Metallic Roofing. He has been in the metal roofing manufacture for 25 years. WSMR is a manufacturer of metal roofing, wall panels, and metal siding. We have colors and finishes that nobody else has with about 100 different colors in stock. Our option of color options and finishes is probable the largest in the industry.

• Connect with Paul Rubio

Source: https://www.westernstatesmetalroofing.com/blog/installation-open-valley-trim-metal-roof

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