Air seal attic access panels and drop down stairs to minimize air leakage.
How to seal an attic opening.
Finish up by sealing the access hatch with self sticking weather stripping.
If your hatch rests directly on the moldings add 2 1 2 inch wide stops around the opening.
Ever wonder how much your attic entrance costs you each month in your cooling and heating bills.
These new wood stops provide a larger area for attaching new weatherstripping.
If the attic hatch rests on the molding you should add 2 1 2 inch stops around the entire opening.
The large vent opening allows the heat to rise and.
The opening around a furnace or water heater flue is a major source of warm air into the attic photo 5.
Because the pipe gets hot building codes require 1 in.
They also give you an easy area to add hook fasteners if needed.
Small attic vents located below the roof peaks provide sufficient ventilation to let the moisture created by heat rising into the attic escape.
Of clearance from class b flues 2 in.
Insulate the cover with rigid foam that is glued in place or batt insulation that is mechanically fastened e g with wires and screws.
Sealing the attic hatch or door.
Install a gasket around attic access openings to air seal between the opening and the panel covering.