Dow 2 Rigid Insulation R Value

It is lightweight and easy to install.

Dow 2 rigid insulation r value.

Thermax sheathing is a non structural rigid board insulation consisting of a glass fiber infused polyisocyanurate foam core laminated between 1 0 mil smooth reflective aluminum facers on both sides. R value determined by astm c518 using the aging process in astm c1289 90 days 140 f 2 vertical compressive strength is measured at 10 percent deformation or at yield whichever occurs first. Find foam board insulation at lowest price guarantee. 2 vertical compressive strength is measured at 10 percent deformation or at yield whichever occurs first.

The glass fiber reinforcement contributes to improved fire performance and dimensional stability. This material offers the highest r values about r 6 to 6 5. It provides about r 5 per inch. Because rigid foam plastic insulation products are not all aged in accordance with the same standards it is useful to publish comparison r value data.

Some products have reinforced facing to make them sturdier. Choose this option for areas that need a good amount of strength and water resistance. Thermosetting resins from dow can be used as an alternative to traditional formaldehyde based resins for binding mineral fibers in the production of insulation blanket products that go into building insulation systems and specialty insulation. Since styrofoam brand extruded polystyrene foam insulations are visco elastic materials adequate design safety factors should be used to prevent long term creep and fatigue deformation.

R value determined by astm c518. 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 r values that range from 3 6 to 4 2 per inch. The r value for foamular xps insulation is provided from testing at two mean temperatures 40ºf and 75ºf and from two aging conditioning techniques 180 day realtime aged as mandated by.

Thd sku 740551. Shop dow sm extruded polystyrene insulation 2 ft x 8 ft at lowe s canada online store. 2 in x 4 ft x 8 ft. This product typically has an r value of 3 6 to 4 0 per inch of thickness.

1 aged r value at 1 of cured foam 75 f mean temperature. Super tuff r r 13 2 in.