Lap Seam Roof

Pac 150 180 double lock.

Lap seam roof.

Sheffield metals is a leader in the distribution of coated and bare metal products as well as engineered standing seam metal roof ssmr wall systems. According to the 2012 international building code 1507 4 2 deck slope minimum slopes for roof panels need to comply with the following. Allow the caulk to dry completely. The minimum slope for lapped non soldered seam metal roofs without applied lap sealant shall be three units vertical in 12 units horizontal 25 percent slope.

If your panels aren t layered properly water damage can occur. Fortunately with a few safety precautions and some basic information metal roof installation is a very accessible project. As others have pointed out a field rolled seam is usually best but snap lock seams work pretty well too for residential applications over a solid sheathing substrate. Widely used in roofing the standing seam connects vertical metal roof panels with hidden fasteners.

A standing seam roof is only marginally more expensive 25 or so than a conventional lap seam roof. Lastly the weakest link in any roofing system is a lap so when one can be avoided it s generally preferred. Metal roofs though less appealing than shingle or tile is a more fire resistant and heat reflecting roofing option. When you re repairing or installing a new metal roof it s important to know how to properly lap the roofing material.

Apply caulk to every screw head. The easy installation involves placing metal panels on your roof but you ll need to be mindful of metal roof overlap. The lap seam is a basic metal seam where one piece overlaps the other. Aesthetics standing seam panels typically offer a taller and distinct vertical leg and fewer if any minor ribs in the center of the panel.

Doing so can prevent water damage to the underlying structure and will help with insulating the building. We would like to show you a description here but the site won t allow us. Apply a generous bead of waterproof roof caulk to both edges of every 6 inch wide horizontal end lap seam with a caulking gun. A lap is created by making a fold across the edge then laying the lap over the other piece of metal pounding flat and soldering welding or securing with rivets.

We specialize in providing painted galvalume and aluminum for the architecturally driven metal panel industry.