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Roofing · Morton, Washington
Roofing in Morton may come with a suggestion to add a powered attic fan while the roof is open. Before accepting that extra, ask what problem it is intended to solve and where the fan will draw its replacement air.
Bring any attic assessment and describe the concern behind the fan proposal. Ask the provider to evaluate ceiling air leakage and existing ventilation before adding a motorized exhaust opening to the roof.

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Roof replacement
An attic exhaust fan can pull air from the occupied house through ceiling leaks. Have the assessor explain the proposed air path, the evidence for adding the fan and whether ceiling air sealing, insulation or passive ventilation would address the concern more appropriately.
Separate a powered attic ventilator from a whole-house fan, which serves a different function. Ask which problem was observed and why this equipment is being recommended.
Ask how air would enter the attic while the fan runs and whether leaks connect the attic to conditioned rooms. Where combustion equipment is present, have the assessor consider pressure-related safety as part of the evaluation.
Have the proposal identify any ceiling work, ventilation changes, roof penetration and electrical work. Compare the fan option with the recommended alternative using complete scopes rather than an accessory price alone.
Before work begins
Describe the reroof and any new powered ventilation when confirming the Morton review path. Ask which City approval and County building documents apply to that scope, and have the contractor identify any separate electrical requirements.
The roof calculator cannot measure ceiling leakage or determine whether a powered attic fan is appropriate. Resolve that assessment before authorizing the accessory.
No. Ask the provider to identify the proposed equipment and its purpose. These systems move air for different reasons.
Do not assume savings. Have the assessor evaluate leakage and the air supply to the attic, including the possibility of drawing cooled air out of the house.
No. Use a site assessment to decide the ventilation scope, then request itemized pricing for the work it identifies.