What is the purpose of soffits?

What is the purpose of soffits?

Like many parts of a home's exterior, soffit serves both an aesthetic and a functional purpose. Functionally, the basic mission of soffit is to protect rafters from the elements. Keeping moisture away from the rafters reduces the chance of mold, and helps preserve the life of the materials.

What are the things on my roof?

What Is On My Roof

  • HVAC Vent Stack. These are what vent the fuel burning appliance in your home. ...
  • Small Box Vent: For dryer or a bathroom fan. Smaller box vents are used for either your bathroom vent fan or a clothes dryer. ...
  • Large Box Vent. ...
  • Attic Fan. ...
  • Plumbing vent pipes. ...
  • High-Efficiency Furnace system.

What is the best insulation for a flat roof?

Flat roof insulation is used to enable a room to feel warmer in the winter and cooler in the summer months. Wood fibre, cellular glass and polystyrene (EPS or XPS) all have good insulation properties, but foam works particularly well and is often found in modern constructions.

Why are attics vented?

In cold climates, the primary purpose of attic or roof ventilation is to maintain a cold roof temperature to control ice dams created by melting snow, and to vent moisture that moves from the conditioned space to the attic (ventilation acts to bypass the vapour barrier created by most roof membranes).

How do I insulate attic for living space?

There are two basic ways to insulate a finished attic. If only the living space will be insulated, wrap the insulation around the room's walls and ceiling and then continue along the floor of the non-living space. In this case, the area behind the knee wall will be uncomfortably hot or cold.

Should you insulate rafters in attic?

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

How do you ventilate a finished attic?

To effectively ventilate your roof, create a 1-inch airspace from the soffit to the ridge by installing a continuous air chute in each rafter bay. Note: Air chutes, when combined with soffit vents and a ridge vent, will help prevent problems with condensation and ice dams.

What should R value be in attic?

between R-30 and R-60