Install Corrugated Metal Roofing. Learn About Screw Placement And Overlapping The Corrugated Roofing Panels. This video covers the installation of fasteners on 7/8″ Corrugated exposed fastener metal roofing panels
In this video you will learn about:
• Overlapping Corrugated Metal Roofing
• Do You Locate Fasteners In The High Or Low? Why?
• Screw Location
• Screw Line Spacing
• How Many Screws Do I Need?
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00:00 How to install corrugated metal roofing
00:43 How to overlap corrugated metal roofing panels
01:06 Corrugated metal roofing coverage
01:32 Do the screws go in the tops or bottom of corrugated metal roofing?
01:45 Why do the screws go in the high of the corrugated?
02:12 What is the screw placement on corrugated metal roofing?
02:31 What is a screw line on a metal roof?
02:41 What is the screw pattern for corrugated metal roofing?
03:19 How far apart do you put screws in metal roofing?
03:29 What is the screw line spacing corrugated metal roofing?
04:33 Screw line spacing corrugated on metal purlins
04:48 How many screws will I need on a corrugated metal roof?
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WRITTEN GUIDE – Screw Placement
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DIAGRAM – Screw Placement
39″ Wide Panel
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37″ Wide Panel
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7/8″ Corrugated
https://www.westernstatesmetalroofing.com/docs/78-corrugated/install_guide_78_corrugated.pdf
How Many Screws Do I Need For Metal Roofing?
When you learning how to install corrugated metal roofing it’s important to install the screws and fasteners correctly. Here some installation tips that will help you with your metal roof installation.
Screw Spacing & Screw Placement Best Practices
It can be confusing trying to figure out the correct way to screw down a metal roof. You do not know where to put the screws, how often to fasten the metal roofing panels, and then you have to figure out how many screws to purchase. Don’t worry though because we have you covered. It’s actually a really simple process and we will guide you through it step by step. Once you watch this video you will be an expert.
It is easy to determine where the screws should be located on your metal roofing panel. Every panel will have a different screw placement diagram. These will be located within the installation guide. First, we will review the screw placement for the most common metal roofing panels, starting with ⅞” corrugated.
Where To Place Screws For ⅞” Corrugated
The screw placement for ⅞” corrugated can be a little tricky. The fasteners are located in different locations for roofing and metal siding conditions. Then if that wasn’t confusing enough metal roofing manufacturers have differing opinions on the correct corrugated screw placement for a roofing condition. Hang in there and we will explain this one to you in detail.
There are two schools of thought when it comes to corrugated metal roofing screw placement. Both are correct.
Installing the metal roofing screw in the high of the corrugated panel as shown below. The advantage to this method is the screws are exposed to less water and debris. The main disadvantage is a less secure connection.
Screws that are installed in the low of the metal roofing panel will result in a more secure connection, but will be less weather tight. The screw will compress better when attached in the low and you are less likely to distort the metal roofing panel when you tighten the screw.
If the fastener is placed in the low of the panel it partially obstructs water and debris. The low of the panel is skinny and the fastener takes up most of that space. As the water drains it will go over the screw. Screws that have backed out over time or that were installed incorrectly will leak. You will avoid the bulk of this issue by installing the fastener in the high of the roofing panel.
⅞” Corrugated Screw Location For Metal Roofing
A screw line is a row of screws that is spaced at a specific distance from the next row of screws. There will be four screws per screw line placed in the high of the corrugated panel. The screws are spaced out so that every third corrugation has a screw.
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