Most pressure treated wood is treated with chromated copper arsenate.
Metal roof on treated lumber.
Since condensation is very likely to collect on the underside of metal roofing you have an electrical conduit waiting to be plugged in.
At max kendall lumber and tin we are the metal roofing manufacturer of master rib pbr and standing seam.
The pressure treated wood contains copper along with other metals that interacts with aluminum and causes the corrosion.
Water is an electrolyte.
The roofing is manufactured in panels that.
For many applications a layer of plywood underneath your metal roofing is an unnecessary expense.
Get free shipping on qualified metal roofing or buy online pick up in store today in the building materials department.
Installing wood stripping under a tin roof.
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.
By following a few simple steps the dissimilar materials can be separated and the corrosion process stopped.
Tin roofing also known as metal roofing is considered more durable than composition or wood shingles.
Finally if a structure has very limited insulation and ventilation especially ventilation in the attic battens can be helpful especially if a.
The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to.
A metal can corrode when minuscule amounts of electricity travel through an electrolyte connecting dissimilar metals.
From rough dressed lumber to fence posts we guarantee to have the best quality and prices in the area.
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.
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.