2017-00271 - new house - Laserfiche WebLink

Home Browse Search

System Overview and Summary t MemBrain sheeting may be installed as an interior air barrier system. Install large sheets using recommended fasteners, tapes and sealan�s to achieve air barrier continuiry with the building envelope components, as illustra�ed � in Figure 1. Set-up and Site Preparation ' The most effective time to install the MemBrain Air Barrier Sy�stem is: • After all building envelope penetrations are complete(i.e.,plumbing lines, elecMcal outlets, exhaust vents, � lighting fixtures, etc.) and vertical penetrations through wall plates in cavities are appropriately sealed. • After all windows and doors are ins[a11ed, and rough opening gaps are sealed appropriately (i.e., �vith code-approved low expansion foam). � • After wall systems are insulated with unfaced fiber glass insulation. • Be[ore exterior walls and ceilings are finished wi�h gypsum board. � Roof/Attic/Ceiling Applications 1.Staple MemBrain to the bottom oE ceiling joists every 1Z to 24 inches. , 2.Seal the film to interior and exterior wall top plates using recommended sealants. 3.Fasten the film using staples through the sealant to the plates ever5� 12 to 24 inches. 4.Allow the film to overlap at rhe corners a minimum of 6 inches. � Exterior Wall Applications 1.Start at a corner of the room where an interior partition wall or door jamb meets an insulated exterior wall. � Lay the MemBrain roll on the floor,with the end touching the bottom of the partition wall ar jamb. 2.Unroll MemBrain along the insulated wall,until the next corner is reached. Cut the film perpendicular to the insulated wall so that the overall length is about 8 to 12 inches longer than the wall. � 3.With the 3-inch offset edge parallel with the top of the insulated wall, place one corner of the cut shee�at the top left or right corner of the wall. The factory-cut edge should be covering the top edge of the top sill t plate. The cut edge of the sheet should wrap around the inside corner at least 4 inches. Ensure that the folded material is facing the room(the print across top header will be facing out).Anchor this corner with staples. 4.Apply recommended sealant over ' ceiling-overlapped film material at the�op pla�e, to the frame around window and door rough openings and to the bottom plate (See MemBrain ' Air Barrier System Details on page 4 and Figure Top Edge Folded Film to 17 on page 10).Working towards the opposite of Offset Unfold into Room ' corner, pull the sheet tight, and staple the offset ; � edge to the top sill plate through the sealant bead. Staples should be at least 12 to 24 inches apart. ' 5.After stapling to the opposite corner, allow the folded sheet to unfold to the floor. (See Figure 2) 6.Pull the sheet downward and staple through the ' sealant bead to the bottom sill plate. Then staple - at 1Z-to 24-inch intervals along each stud. Effort ' should be made to minimize wrinkles along the Figure 2:MemBrain sheeting orien�a(ion jor wall ins[a1ln�ion method. stud surfaces to make drywall installation easier. 7.Follow the MemBrain Air Barrier System Details � on page 4 to ensure an air-tight assembly. rv�ew.[ertnirt(eed.cont 3 �