What should I put between roof and insulation?

A vent baffle should be installed between the insulation and the roof decking to maintain the ventilation channel. Consider using high-density R-30 batts, which are as thick as R-25 batts, but fit into 2x10 framing.

energy.gov - Where to Insulate in a Home - Department of Energy

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Can I build my own shed?

Yes, with the right plans you can build your dream shed.

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For optimal energy efficiency, your home should be properly insulated from the roof down to its foundation. The illustration above shows all the areas of the home where there should be insulation. The numbered areas shown in the illustration are as follows: 1. In unfinished attic spaces, insulate between and over the floor joists to seal off living spaces below. If the air distribution is in the attic space, then consider insulating the rafters to move the distribution into the conditioned space.

(1A). Insulate the attic access door

2. In finished attic rooms with or without dormers, insulate (2A) between the studs of "knee" walls, (2B) between the studs and rafters of the exterior walls and the roof, (2C) and ceilings with unconditioned spaces above.

(2D) Extend insulation into joist space to reduce air flows.

3. Insulate all exterior walls, including (3A) walls between living spaces and unheated garages, shed roofs, or storage areas; (3B) foundation walls above ground level; (3C) foundation walls in heated basements. 4. Apply insulation to floors above unconditioned spaces, such as vented crawl spaces and unheated garages. Also insulate (4A) any portion of the floor in a room that is cantilevered beyond the exterior wall below; (4B) slab floors built directly on the ground; (4C) as an alternative to floor insulation, foundation walls of unvented crawl spaces. (4D) Extend insulation into joist space to reduce air flows.

5. Do not forget to insulate the band joists.

6. Caulk and seal around all windows and doors.

In addition to insulation, consider moisture and air leakage control in each area of your house. If radon is an issue where you live, you’ll also need to consider radon and radon-resistant construction techniques as you research foundation insulation options. In addition, if you live in an area with termites, you’ll have to consider how termite protection will affect the choice and placement of insulation in your home and plan for a means of inspection.

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Can I build my own shed?

Yes, with the right plans you can build your dream shed.

Learn More »

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How long can you leave insulation exposed?

That said, it's still advisable to cover any foam board insulation exposed to the Sun within 30-60 days at the most. On most projects, that's more than enough time to finish the exterior walls.

buildwithhalo.com - Can I Leave Foam Board Insulation Exposed on Walls?

Can I Leave Foam Board Insulation Exposed on Exterior Walls?

When exposed outdoors, foam board insulation can see damage from the Sun’s ultraviolet (UV) rays. Rays reflected from a surface, like a nearby window, can be particularly damaging to foam boards. But not all foam board insulation products perform in the same manner when subjected to UV rays. Some come equipped with a protective laminate surface on both sides. Tests have shown that these laminated boards can withstand UV ray damage for a reasonably long time. That said, it’s still advisable to cover any foam board insulation exposed to the Sun within 30-60 days at the most. On most projects, that’s more than enough time to finish the exterior walls.