Proper Way To Insulate A Roof

When you insulate attics and crawlspaces you ve got to vent them too.

Proper way to insulate a roof.

If you don t have an attic however there is. In either case you will need to follow the general steps below to insulate your garage roof. Insulate and air seal any knee walls vertical walls with attic space directly behind them in your home as well. By following a few simple steps for determining need and application you can be sure that the right decision has been made.

Sprayed against the underside of the roof deck it seals against air movement eliminating the need for a vapor barrier or ventilation. How to put insulation in a ceiling before drywall. But there are small improvements many homeowners overlook that can make a huge difference. If you have a flat garage roof and an attic above you can install the garage insulation from below using a standard ladder.

If it is located in a conditioned part of the house also remember to insulate and air seal your attic access. Since home insulation changes the way attics and crawlspaces breathe it s critical that you maintain or install proper ventilation fig. A how to on installing certainteed s fiberglass insulation batts into attic and cathedral ceiling applications. However if you have a cathedral style garage roof you will need a scaffolding to get into the upper areas of the roof.

For the same reason insulation shouldn t touch the roof s underside. But its open cell structure still allows moisture to escape. If you have an attic there are quick ways to insulate the ceiling from above after drywalling it. Whether you re doing a weekend.

Staple plastic or foam baffles to the roof sheathing near the eaves to keep the material away. Although there are many different circumstances that may call for insulating roof rafters the means to determine the necessity for insulating rafters remains the same. Illustration by ian worpole fiberglass insulation. Before insulating seal any air leaks and make roof and other necessary repairs.

If you re insulating from scratch put the right vapor barrier in the right place. At first it seems odd to add insulation for warmth and then purposely create ventilation holes for cold air to enter. Fiberglass batts the insulation found in most houses in the u s are inexpensive and quick to.