Proper Roof Insulation Installation

Start at one edge of the crawlspace and install the insulation between the floor joists.

Proper roof insulation installation.

Fiberglass batts the insulation found in most houses in the u s are inexpensive and quick to install. In fact if your roof s pitch is steep enough to allow access to the eaves you can install a slanted board baffle at the end of each joist run. The insulation should fit snugly against the subfloor and between the joists. Make sure each run contacts the insulation you installed at the header band joists.

Kraft faced or paper faced insulation comes in batts and long rolls. This guide to proper attic insulation can help. If you want to add foil insulation to an existing roof you can still do it by going into the attic and. For vaulted or cathedral roof construction provide a free ventilation path from eaves to ridge between all rafters.

In most climates it needs a vapor barrier. All kraft faced insulation is easy to cut with a sharp utility knife or insulation knife. Insulation puts the money back in your pocket by protecting your home from the elements and lowering energy costs. Roll insulation is best for floors ceilings and roofs with a long joist or rafter bays and for tall walls.

Get the most out of your home with proper roof insulation. The batts are precut to fit into cavities on standard 8 foot high walls. But there are small improvements many homeowners overlook that can make a huge difference. Use proper fall protection equipment and be certain the system is anchored to your roof studs correctly.

You put a lot into keeping your home running. For proper installation of roof insulation you need to do it before the roofing goes on. Before you install metal roofing repair any damage to the wood under the shingles. Staple plastic or foam baffles to the roof sheathing near the eaves to keep the material away.

Next use 1 inch nails to secure some metal edging to the perimeter of the roof. The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow. 4 install edging use 1 1 4 inch nails to cover the outline of the roof with strips of metal eave flashing also called edging. Install a layer of roofing insulation as recommended by the roofing manufacturer.

Then cover the entire roof with a layer of insulation and secure it with a staple gun. Like other batt type insulation fiberglass has a predictable r value if not compressed but is difficult to fit around obstacles without leaving gaps. If using faced insulation keep the paper vapor retarder facing up and against the subfloor.