insulation stages of attic

airway architecture attic baffles barrier beam building ceiling class clean column construction contractor convenient cost costs cover design energy fiber fiberglass flooring foil gable hardwood heat home house industry insulate insulation interior joinery joist knee layers material mounting new panels perforated pink project protection rvalue radiant rafter reflective reflector resistance roll roof room saving shield space staple strips system tear thermal timber vapor ventilation wall warmth winter wood woodwork