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.
Metal roof on treated lumber.
Finally if a structure has very limited insulation and ventilation especially ventilation in the attic battens can be helpful especially if a.
Installing wood stripping under a tin roof.
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.
The pressure treated wood contains copper along with other metals that interacts with aluminum and causes the corrosion.
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.
Get free shipping on qualified metal roofing or buy online pick up in store today in the building materials department.
At max kendall lumber and tin we are the metal roofing manufacturer of master rib pbr and standing seam.
Since condensation is very likely to collect on the underside of metal roofing you have an electrical conduit waiting to be plugged in.
For many applications a layer of plywood underneath your metal roofing is an unnecessary expense.
Need it delivered we have the trucks to get your material to you fast.
When treated lumber will be in direct contact with metal panels or flash ings please note the following.
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.
A metal can corrode when minuscule amounts of electricity travel through an electrolyte connecting dissimilar metals.
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.
From rough dressed lumber to fence posts we guarantee to have the best quality and prices in the area.