Methods and systems for sealing a wall

摘要

Embodiments of the invention provide apparatus and methods for insulating a structure. A method for insulating a structure may include providing a frame that comprises a plurality of frame members coupled together. Sheathing panels may be coupled to the frame members such that adjacent sheathing panels abut and directly contact each other at an interface to form a wall having a front surface and a rear surface. A spray insulation material may be applied to the front surface of the wall such that the insulation material forms a substantially continuous insulation layer atop the front surface and such that the insulation material directly contacts the interface between adjacent sheathing panels to restrict passage of air between the adjacent panels to at or below 0.2 L/m2/s at a differential pressure across the wall of 75 Pa.

主权项

1. A method for insulating a structure, the method comprising:
providing a frame that comprises a plurality of frame members coupled together; coupling a plurality of sheathing panels to the frame members such that each sheathing panel of the plurality of sheathing panels abuts an adjacent sheathing panel of the plurality of sheathing panels at an interface and such that the coupled sheathing panels form a wall having an interior surface that contacts the frame members and an exterior surface opposite the interior surface, wherein the interface comprises a gap or void of about ¼ inch; and applying a spray insulation material to the exterior surface of the wall such that the insulation material forms a substantially continuous insulation layer that extends continuously over and atop the exterior surface and such that the insulation material is sprayed directly atop and contacts the interface of adjacent sheathing panels of the plurality of panels to restrict passage of air between the adjacent panels to at or below 0.2 L/m2/s at a differential pressure across the wall of 75 Pa; wherein the insulation layer provides an R value of at least 5.