Metal Roof On Treated Lumber

A metal can corrode when minuscule amounts of electricity travel through an electrolyte connecting dissimilar metals.

Metal roof on treated lumber.

Installing wood stripping under a tin roof. Water is an electrolyte. By following a few simple steps the dissimilar materials can be separated and the corrosion process stopped. Purlins are non pressure treated 1 x 4 x 12 lumber that is installed on to the roof in a specific layout pattern and screw pattern.

Metal roofing panels rated for architectural use attached to purlins horizontal pieces of wood or metal fastened to roofing trusses are structurally sound when installed according to your roofing manufacturer s instructions and local building codes. Finally if a structure has very limited insulation and ventilation especially ventilation in the attic battens can be helpful especially if a. Tin roofing also known as metal roofing is considered more durable than composition or wood shingles. From rough dressed lumber to fence posts we guarantee to have the best quality and prices in the area.

The roofing is manufactured in panels that. The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to. Most pressure treated wood is treated with chromated copper arsenate. The pressure treated wood contains copper along with other metals that interacts with aluminum and causes the corrosion.

Get free shipping on qualified metal roofing or buy online pick up in store today in the building materials department. Need it delivered we have the trucks to get your material to you fast. Since condensation is very likely to collect on the underside of metal roofing you have an electrical conduit waiting to be plugged in. Additionally per metal roofing manufacturer instructions battens should never be treated lumber as salts and chemicals in the treated lumber can cause corrosion of the metal roofing panels.

Galvanized steel is compatible with the cca chromated copper arsenate pressure treated lumber that was predominantly used before 2004 but not with the older penta treated lumber or the new acq alkaline copper quartenary ca copper.