WarmlyYours Cork 2 ft. x 3 ft. Insulating Underlayment (Pack of 4 Sheets) Value:package Heavy-Duty Steel Construction: Crafted from

Heavy-Duty Steel Construction: Crafted from powder-coated steel for exceptional durability and long-lasting performance

increasing friction to help keep fasteners secure during vibration

while TR shutters help protect against accidental insertions

Q: What color light do they emit

WarmlyYours Cork 2 ft. x 3 ft. Insulating Underlayment (Pack of 4 Sheets) Value:package Heavy-Duty Steel Construction: Crafted fromWarmlyYours Cork Underlayment System is an excellent insulation choice when electric floor heating is installed under laminate over a concrete slab and is highly recommended for acoustical impact isolation and crack suppression. Cork is durable, lightweight and is easy to install and is the ideal solution under our Environ II floor heating system. Cork underlayment installed on slab creates a thermo break and increases the energy efficiency of the