Expanded Polystyrene Foam Board Insulation R Value
This product typically has an r value of 3 6 to 4 0 per inch of thickness.
Expanded polystyrene foam board insulation r value. 0 9375 in x 3 875 ft x 7 875 ft expanded polystyrene foam board insulation item 15358 model 451156 the higher the r value the greater the insulating power. Sign up for style decor emails and save on your next order. It established a new benchmark in r value requirements for foam insulation. Expanded polystyrene insulation is similar to the foam used for packing peanuts and it s typically used for insulated concrete forms also knows as icf s.
It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation. Prices promotions styles and availability may vary by store and online. Valid on select items. Expanded polystyrene foam eps is the cheapest and least used foam board product on the market.
Expanded polystyrene insulation more commonly referred to as eps is a closed cell insulation that has been around since the 1950 s. Choose from three types of insulating foam core boards for wall insulation. Products with a higher r value have a higher cost but have an increased capacity to resist heat flow and therefore provide greater insulation. Inventory is sold and received continuously throughout the day.
Extruded polystyrene xps easily recognized by its blue green or pink color falls in the middle of the three types of rigid foam insulation in both cost and r value used most in walls or below grade applications recyclable and at about r 5 per inch costs around 42 per sq. Maximum r values in february 21 2001. There are a few different kinds of foam board insulation diyers should know about. Expanded polystyrene is very versatile because it can be molded and cut into different.
City building officials will no longer accept the widely used 180 day conditioned r value figures for affected rigid foam insulation materials such as extruded polystyrene phenolic ployisocyanurate and polyurethane insulation. 0 78 in x 8 ft x 4 ft. Product thickness in 1 in. Therefore the quantity shown may not be available when you get to the store.
1 in x 4 ft x 8 ft. For a 1 in thick 4 8 panel. Each type comes with unique advantages. R 8 expanded polystyrene foam board insulation 2 x 4 x 8 please note.