Ceiling Foam Board Insulation Installation

Obviously on a project like this there are quite a few options with varying costs and benefits.

Ceiling foam board insulation installation.

Cut the rigid insulation. Do no use a vapor barrier under the insulation. It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches. Garage ceiling and insulation rigid foam board install with pictures i searched high and low for ideas on the best way to finish my garage so it would retain heat.

How to attach rigid insulation to ceilings 1. Measure between the joists or rafters which are likely to be 16 22 or 24 inches on center. It took a lot of time to come up with what i did so i wanted to give back to the community and show what i did. Press the cut.

Feasible insulating options include. Spray foam using spray foam would be an excellent option. Lay the panel on a scrap of plywood or a subfloor that won t be marred by the knife blade. Some types of thicker foam board insulation are available but they may need to be special ordered.

Foam board insulation is easy to use and is a great diy way to add some insulation. Cover the insulation with a vapor barrier before you install it. Find ceiling foam board insulation at lowe s today. Use closed cell spray foam closed cell foam board extruded polystyrene such as dow styrofoam or foil faced iso board.

A brief snippet of how and why i used rigid foam insulation for some areas of the tiny house. The best way to install foam board insulation under drywall is to frame the wall with 2x3 inch lumber for the top and bottom plates and 2x2 inch lumber for the studs. All foam boards absorb water vapor. Because foam board insulation is flammable building codes require it to be covered with fire resistant paneling or drywall.

In that situation the foam would be sprayed directly to the backside of the roof sheathing resulting in an un vented roof. Seal the insulation or the ceiling surface below against air leakage. It will degrade its r value.