Fanfold Siding Installation

If the existing siding is damaged remove it and install tri built fanfold underlayment directly to the substrate.

Fanfold siding installation.

Beginning of installation means installer accepts the existing conditions. Exterior fanfold insulation is the foam type of insulation that is applied between your home s exterior and the siding and it offers some protection from moisture in addition to creating a layer of thermal insulation. Fanfold board is worth the cost and effort to install behind vinyl siding. It also helps to level the walls so you get a better smoother siding job.

Fan fold is typically sold in 1 4 inch by 4 foot by 50 foot sections and is installed horizontally across the existing siding to level out irregularities before re siding with vinyl. Verify that substrate dry and free of foreign material that will damage the fanfold underlayment. I have not seen any studies that show how well tape adheres to foam over the long haul. A install tri built fanfold underlayments directly over old siding using galvanized or aluminum roofing nails with nails spaced about 2 feet apart.

Fanfold foam residing board is a thin perforated extruded polystyrene foam board faced on one side with a plastic film facer and combines proven xps foam technology with a unique design to enhance the application of new or replacement siding. Foamular extruded polystyrene xps rigid foam insulation offers a comprehensive line of products in a wide choice of sizes thicknesses and edges with a lifetime limited warranty for the life of the home or building. If you have ever seen vinyl siding and the laps looked dirty all the time this is caused by heat buildup between the siding and the wall this heat excapes through the laps and causes stain. Like bob said it helps with sound insulation.

Products can be used on wood steel framing or concrete walls. Using proper siding insulation. R tech ff meets or exceeds the requirements of astm c578 standard specification for rigid cellular polystyrene thermal insulation. Fanfold foam residing board.

This creates a horizontal seam every 4 feet. The products are easy to handle score cut and install and no special tools are needed. It also helps with wind infiltration through the walls.