Small attic vents located below the roof peaks provide sufficient ventilation to let the moisture created by heat rising into the attic escape.
How to seal an attic opening.
The large vent opening allows the heat to rise and.
From masonry chimneys to any combustible material including insulation.
Of clearance from class b flues 2 in.
Finish up by sealing the access hatch with self sticking weather stripping.
If the attic hatch rests on the molding you should add 2 1 2 inch stops around the entire opening.
Sealing the attic hatch or door.
Insulate the cover with rigid foam that is glued in place or batt insulation that is mechanically fastened e g with wires and screws.
If your hatch rests directly on the moldings add 2 1 2 inch wide stops around the opening.
Install a gasket around attic access openings to air seal between the opening and the panel covering.
The opening around a furnace or water heater flue is a major source of warm air into the attic photo 5.
We are going to show you step by step in less than 2 and 1.
Because the pipe gets hot building codes require 1 in.
These new wood stops provide a larger area for attaching new weatherstripping.
They also give you an easy area to add hook fasteners if needed.