How to Avoid Common Mistakes when Installing Metal Roofing

When selecting a metal roofing material and installing the panels on your home, there are many common mistakes that are easily made. Pay close attention to how you install your metal roof panels and be sure to consult this list thoroughly prior to beginning.

Metal Roof Installation

Incorrect Panel Lapping

Installing panels the wrong way is a common mistake that many first-time roofing installers make. Remember, to consult the material supplier on how to install panels correctly. Good suppliers will have video tutorials and printed documentation on installation of their product.

Screwing a Set Incorrectly

Every screw needs to be set correctly. The last thing you want is for them to be too tight or too loose. Always put screws where it is flat in the middle of the panel. If they’re wobbling, check to make sure that your nut driver is in proper working condition.

Don’t use Too Much Sealant

Don’t use sealant or caulk to fix a mistake on your roof. The goal needs to be to waterproof through correct installation and not by covering lazy mistakes with caulk. Any sealant should be a secondary consideration when it comes to waterproofing. When applied, it needs to be under panel or trim where it is protected from the elements because it will last longer there.

Always Measure any Panel Twice prior to Cutting

After a metal roof panel is cut, it can’t be put back together again. The last thing you want to do is measure wrong. Always ensure that you check twice, and then cut. This will keep errors to a minimum at least as it pertains to cutting. Also, ensure you are adequately planning for any penetrations i.e. skylights, attic fans, PVC piping, etc. These require special attention to properly trim and install around these openings.

Assuming Installation is the same for Every Metal Roof

Though some may be similar, always check the instructions prior to installing any metal roof. Depending on the type of panels, special attention may need to be applied to certain areas. Remember, there are varying thicknesses, finishes, and profiles. These factors in addition to the style of the property will be what determines installation.

Over the Edge Paneling is a No-No

Don’t let the metal panel hang over the edge of the roof. Though many may attempt to do otherwise, when you are properly installing a metal roof, it is recommended to ensure paneling only hangs an inch and a half to two inches extending over the edge.

Not enough Screws in your Pipe Flashing

Any penetration in the roof is an area prone to leaking. Pay close attention to how you address penetrations like PVC piping. By only laying in a couple screws and some caulk, that’s not enough to get the job done long-term. The caulk will eventually wear out and then, you’ll have a leak in no time. When installing, ensure sealant is installed underneath the base and that enough screws are placed into the base to keep it in place.

Installing a metal roof is a big project for anyone. Be sure to avoid these common mistakes that have befallen others in the past. Be highly attentive when installing metal roofing as even a minor mistake can require significant re-installation or long-term costs down the line when a leak becomes present.