Proper Roof Insulation Installation

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.

Proper roof insulation installation.

This guide to proper attic insulation can help. Install baffles providing a minimum of 1 inch of clear space between framing and or under roof decking at eaves to ensure that ceiling or roof insulation does not block ventilation paths. Wear appropriate safety. For proper installation of roof insulation you need to do it before the roofing goes on.

For vaulted or cathedral roof construction provide a free ventilation path from eaves to ridge between all rafters. Staple plastic or foam baffles to the roof sheathing near the eaves to keep the material away. Before you install metal roofing repair any damage to the wood under the shingles. Kraft faced or paper faced insulation comes in batts and long rolls.

You put a lot into keeping your home running. Next use 1 inch nails to secure some metal edging to the perimeter of the roof. Insulation puts the money back in your pocket by protecting your home from the elements and lowering energy costs. 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 you want to add foil insulation to an existing roof you can still do it by going into the attic and. 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. For the same reason insulation shouldn t touch the roof s underside. Install a layer of roofing insulation as recommended by the roofing manufacturer.

Start at one edge of the crawlspace and install the insulation between the floor joists. Make sure each run contacts the insulation you installed at the header band joists. Roll insulation is best for floors ceilings and roofs with a long joist or rafter bays and for tall walls. The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow.

The batts are precut to fit into cavities on standard 8 foot high walls. Use proper fall protection equipment and be certain the system is anchored to your roof studs correctly. If using faced insulation keep the paper vapor retarder facing up and against the subfloor. Then cover the entire roof with a layer of insulation and secure it with a staple gun.

The insulation should fit snugly against the subfloor and between the joists. In most climates it needs a vapor barrier. Fiberglass batts the insulation found in most houses in the u s are inexpensive and quick to install.