Standing seam roofing has been around for over 100 years. Despite the vast array of materials and technologies available, it remains popular. When installed correctly, standing seam roofing provides excellent protection for your home from the elements. Using rolled metal allows for efficient use of materials, and the technology is suitable for a variety of roof configurations.
Standing seam roofing gets its name from the type of joint called a “seam,” which translates from German as “gutter.” Using this type of joint eliminates leaks, as the seams are sealed and reliable.
Preparatory stage
Standing seam roofing uses rolled metal. Typically, this is galvanized steel with a polymer coating, which provides reliable corrosion protection. More expensive options include copper and aluminum. The seams (special bends) are made manually using hand tools or power tools (used only by professionals). Many manufacturers also offer material with a prepared edge and a self-locking joint. Roofs made from such sheets are assembled much faster, as there is no need to process each strip. However, the cost of the material is significantly higher.
The rafter system can be made of wood or metal. The former is often preferred due to its affordability. Wooden beams and planks are treated with fire retardants and preservatives to protect against fire, rot, and premature deterioration. If the slope is between 7 and 14 degrees, a solid base is recommended. This will allow the roof to withstand heavy snow loads.
Soundproofing and waterproofing materials must be laid on the sheathing. The main drawback of standing seam roofing is its high noise level. To prevent vibration transmission, foamed polyethylene strips should be secured to the sheathing slats. For fastening the metal strips, it is best to use self-tapping screws with a soft backing.
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Necessary tools
A special hand tool can be used to create an edge on roofing material. This should only be used by those skilled in the art. Otherwise, the seams may be poor quality and insufficiently sealed, leading to rapid leaks. If possible, rent an electric tool. It offers superior precision.
You will also need the following tools during the process:
- roulette;
- plumb line and building level;
- wooden or rubber mallet;
- hammer;
- metal shears;
- electric drill;
- nibblers (preferably electric);
- pliers;
- screwdriver.
It is also necessary to prepare pliers with special frames that are used to clamp the edge.
Installation technology
Installation works are carried out in several stages:
- Prepare the sheets on the ground. If the metal is 125 cm wide, cut it in half. The strips should be cut to lengths slightly longer than the roof slope. If necessary, prepare folds on the edges using a special machine. If folds are done by hand, use a mallet only. Hammering can damage the metal.
- Cut the clamps. These are 2 cm wide and 10 cm long strips used for fastening. Using them prevents drilling into the roofing material and future leaks.
- The prepared sheets are then lifted onto the roof and secured one by one with clamps. One side of the metal strip is inserted into the gutter, and the other is secured to the base or rafter system. The sheets are usually attached in pairs after being joined together.
- Once the decking installation is complete, the ridge cap needs to be installed. Roofing screws are used to secure it. Where the roof meets the walls, a decorative profile is installed.
Once all work is completed, a lightning rod should be installed to protect against lightning, as well as elements that retain snow to prevent it from suddenly falling off the roof.
