What is silver board?

SilveRboard is a rigid insulation board made from Expanded Polystyrene (EPS) covered with a layer of polypropylene reflective lamination on both sides. This highly effective combination of materials offers high compressive strength and great thermal performance when used in below grade and under slab applications.


R-Value/inch 4.5 hr.ft2.F/Btu (0.78 m2K/W per 25mm)
Vapor Permeance Perforated 2.74 US perms (157 ng/Pa.s.m2) Non- perforated 0.77 US perms (44 ng/Pa.s.m²)

One may also ask, what is the R value of 1/2 inch Styrofoam? Expanded Polystyrene. Also called Styrofoam insulation, this is the least expensive material. It provides R-values that range from 3.6 to 4.2 per inch.

Likewise, which side of insulation board faces out?

Re: Rigid Foam Foil Face In Or Out. You’re right, the foil is intended to reflect radiant heat. If you want to keep heat in, the foil would go to the inside.

What is rigid foam insulation used for?

Rigid foam can be used in walls, roofs, and foundations, for retrofits or new construction. Most varieties of foam have a higher R-value per inch than fiberglass, cotton, or cellulose. There are three main types of rigid foam insulation: expanded polystyrene (EPS), extruded polystyrene (XPS), and polyisocyanurate.

What is the R value of white styrofoam?

Expanded polystyrene foam (EPS) is the cheapest and least used foam board product on the market. This product typically has an R value of 3.6 to 4.0 per inch of thickness.

How much R value does Styrofoam have?

STYROFOAM extruded polystyrene insulation is rated at an R-value of 5.0 per inch at 75°F. The material R-value for the entire wall assembly is derived by adding an R-value of Styrofoam0.

What is the R value of XPS?

5 per inch

What kind of insulation do you use in a sauna?

Insulation of the sauna room is important, with the ceiling being the most critical location to insulate well. Regular fiber-glass insulation plus an aluminum foil vapor barrier should be used.

Can you paint SilveRboard?

The foil facing on insulation is nonporous, making it ill-suited for adhesion. Once the foil face is properly prepared, it will accept a new finish. Apply the paint in a particular way, or you may end up with subtle flaws in the finish coat.

How do you install rigid insulation on a roof?

Above Deck Rigid Foam Insulation for Existing Roofs Remove existing roofing and non-adhered underlayment to expose roof sheathing. Apply continuous air control membrane to existing roof sheathing or implement continuous air control at roof sheathing. Install rigid insulation board in multiple layers with joints offset vertically and horizontally between adjacent layers.

How do you insulate a cinder block wall?

Depending on whether the concrete block walls will be covered or if the top of the wall is exposed can really change the way they are insulated. The option for insulating concrete block walls include spray foam insulation, injection foam insulation, polystyrene beads, foam boards, and mineral loose-fill.

How thick should foam board insulation be?

Foam board insulation is easy to use and is a great DIY way to add some insulation. It comes in standard-size 4×8 sheets, and smaller sizes, in many different thicknesses from 1/4 inch to 2 inches. Some types of thicker foam board insulation are available, but they may need to be special ordered.

How do you install polypro foam board?

Cut your polyurethane foam insulation to fit the surface where you plan to install it, then cover the back of the foam with foam construction adhesive. Draw a line of adhesive around the perimeter of the sheet, then make a large X across the center with the adhesive as well.

How do you install foil face foam board?

Cut AP Foil-Faced foam sheathing to fit snuggly between the rafters. 2. Install AP Foil-Faced foam boards between rafters, directly against the bottom of the roof sheathing. The R- value of the insulation must meet local building code requirements for unvented attics to prevent condensation.