Insulating Garage Roof Trusses

Make sure you have enough ventilation on your roof as well.

Insulating garage roof trusses.

Don t forget to add a vapor retarder to your garage roof insulation installation. Covering up the soffit vents with loose fill or batts which can happen if you stuff insulation along the eaves is a huge no no. If you are insulating the garage ceiling not only by the truss level but also up by the roofline then you must leave at least 1 1 2 to two inches of air between the fiberglass and the underside. To install the insulation overhead you need to staple the pieces to the roof trusses.

This is part 1. This helps prevent garage floor condensation and water logging on the sheathing and wood trusses. I would use unfaced f g and a 4 or 6 mil plastic vapor barrier installed before you drywall. By keeping the insulation on the outside it hides it from viewers while still keeping the insulation trapped inside.

The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow. Make sure that the materials you buy for your insulation are in compliance with the local construction rules and regulations and follow the fire codes. If you want to keep your exposed roof trusses visible then the easiest way to add some insulation is to add it to the exterior side of the finished ceiling. It s about time i had a better work environment.

You should use some foil tape to make sure that the insulation is stable on the roof edges. Make sure that all of the pieces are the same size so that they fit into the trusses. If you re unfamiliar the storage truss is framed using 2 4 with another interior triangle made of 2x3s and about 5ft headroom. Fiberglass blanket would definitely be the most cost effective in a small space such as you have.

If the collar ties are 2x6 then the most blanket type insulation you can install is r19. For the same reason insulation shouldn t touch the roof s underside.