venting and heating

[Robert V]

I had a new garage and breeze way built . told the contractor that I would be heating the breeze way.r13 in walls and the ceiling joists . do I need ridge vent installed. white vinyl vented soffit. they both are attached to the house breeze way then garage. breeze way 10' x 12'. now garage would like to insulate rafter bays with r13 and foam trays to allow air travel once again he did not install ridge vent buy same soffit vent . if I hold insulation back from ridge beam and allow to vent indoors rather than out will I run into a problem. would rather not have gable vents . thank you bob.

 

[blkhonda1991]

if there is no ridge vent the soffit vents are useless, gable vents and soffit vents arent really a great system together. If you are insulating the rafter bays in the garage it would be useless if you had gable vents. If you arent heating or cooling the garage why insulate?
in the breezeway insulate at the ceiling with r38 or even r49 depending on what code is in NH and put vented soffit and a ridge vent.

 

[lakelandcat]

I put ridge vents on my shop and love them, much better than gable vents. remember heat travels up.

 

[Leaflessshadetree]

Ventilation isn't really related to heating or insulation.

Ventilation is important for moisture control in an area that is closed off. (Even if just an uninsulated ceiling). To do it correctly you need both the intake vents (soffit) and exhaust vents (ridge) and a a clear path between them (don't block it with insulation).