Section 3280.403 - [Effective 3/17/2025] Requirements for windows, sliding glass doors, and skylights(a)Scope. This section establishes the requirements for prime windows and sliding glass doors, except that windows used in an entry door are components of the door and are excluded from these requirements.(b)(1) All primary windows and sliding glass doors must comply with AAMA 1701.2 or AAMA/WDMA/CSA 101/I.S.2/A440 (both incorporated by reference, see § 3280.4 ), except the exterior and interior pressure tests must be conducted at the minimum design wind loads required for components in § 3280.305(c)(1) .(2) All skylights must comply with AAMA/WDMA/CSA 101/I.S.2/A440 (incorporated by reference, see § 3280.4 ). (i) For Wind Zone I, the wind loads specified in § 3280.305(c)(1)(i) ; and(ii) For Wind Zones II and III, the wind loads specified for exterior roof coverings, sheathing, and fastenings in § 3280.305(c)(1)(ii) .(c)Installation. All primary windows, sliding glass doors, and skylights must be installed in a manner that allows proper operation and provides protection against the elements, as required by § 3280.307 .(d)Glass.(1) Safety glazing materials, where used shall meet ANSI Z97.1 (incorporated by reference, see § 3280.4 ).(2) Sealed insulating glass, where used, must meet all performance requirements for Class C in accordance with ASTM E 774-97, Standard Specification for the Classification of the Durability of Sealed Insulating Glass Units. The sealing system must be qualified in accordance with ASTM E 773-97, Standard Test Methods for Accelerated Weathering of Sealed Insulating Glass Units. Each glass unit must be permanently identified with the name of the insulating glass manufacturer.(e)Certification. All primary windows and sliding glass doors to be installed in manufactured homes must be certified as complying with AAMA 1701.2 or AAMA/WDMA/CSA 101/I.S.2/A440 (both incorporated by reference, see § 3280.4 ). This certification must be based on tests conducted at the design wind loads specified in § 3280.305(c)(1) . (1) All such windows and doors must show evidence of certification by affixing a quality certification label to the product from an independent product certification body accredited to ISO/IEC 17065 (incorporated by reference, see § 3280.4 ).(2) In determining certifiability of the products, an independent quality assurance agency must conduct pre-production specimen tests in accordance with AAMA 1702.2 or AAMA/WDMA/CSA 101/I.S.2/A440 (both incorporated by reference, see § 3280.4 ). Further, such agency must inspect the product manufacturer's facility at least twice per year.(3) All skylights installed in manufactured homes must be certified as complying with AAMA 1701.2 or AAMA/WDMA/CSA 101/I.S.2/A440 (both incorporated by reference, see 3280.4).(f)Protection of primary window and sliding glass door openings in high wind areas. For homes designed to be located in Wind Zones II and III, manufacturers shall design exterior walls surrounding the primary window and sliding glass door openings to allow for the installation of shutters or other protective covers, such as plywood, to cover these openings. Although not required, the Department encourages manufacturers to provide the shutters or protective covers and to install receiving devices, sleeves, or anchors for fasteners to be used to secure the shutters or protective covers to the exterior walls. If the manufacturer does not provide shutters or other protective covers to cover these openings, the manufacturer must provide to the homeowner instructions for at least one method of protecting primary window and sliding glass door openings. This method must be capable of resisting the design wind pressures specified in § 3280.305 without taking the home out of conformance with the standards in this part. These instructions must be included in the printed instructions that accompany each manufactured home. The instructions shall also indicate whether receiving devices, sleeves, or anchors, for fasteners to be used to secure the shutters or protective covers to the exterior walls, have been installed or provided by the manufacturer.52 FR 4583, Feb. 12, 1987, as amended at 52 FR 35543, Sept. 22, 1987; 58 FR 55009, Oct. 25, 1993; 59 FR 2474, Jan. 14, 1994; 70 FR 72046 , Nov. 30, 2005; 78 FR 73983 , Dec. 9, 2013