Roof Insulation-Foamed Plastic* — 36 by 48 in. (min size) polyisocyanurate foamed plastic insulation boards applied in one or more layers. See Item 9 for min thicknesses with or without the use of gypsum wallboard (Item 13). No limit on max overall thickness. Boards to be installed with end joints staggered a min of 6 in. in adjacent rows.

May 19, 2021 · 1. Beam — W6x16 min size, or Steel Joist min size (See Item 9). 2. Roof Cover ing — Consisting of hot mopped or cold application bituminous materials compatible with the insulation(s) described

P819 Protected Roof Deck Polyisocyanurate Insulation with or without Gypsum Wallboard ASTM Desig. W/D

P819 Restrained Assembly Rating — 1, 1½ or 2 Hr. Unrestrained Assembly Rating — 1, 1½ or 2 Hr Beam - W6x16 min size, Joist 10K1 or 12K3 P819 P908 Restrained Assembly Ratings — 1, 1½ or 2 Hr. Unrestrained Assembly Rating — 0, 1½, or 2 Hr

IN ORDER TO QUALIFY FOR A FIRE-RESISTANT RATING, THE ROOF SYSTEM CANNOT MAKE A PENETRATION IN THE INSULATION SYSTEM. THE TEE-PANEL, IN ORDER TO MAKE POSITIVE ATTACHMENT, MUST BE ATTACHED TO A CORRUGATED SUBSTRATUM (IF THE INSULATION SYSTEM HAS NO NAILABLE SURFACE).

ies utilizing Vulcraft steel deck profiles. Refer to the particular UL assembly being considered for full details of construction, including specific information about fill or fi. sed in P2--, P4--, & P5-- Series designs. . eck finish is critical for fire resistance.

Rmax has tested and obtained classification through Underwriters Laboratories for the use of Rmax roofing insulation products Multi-Max® FA-3, Multi-Max®-3, Tapered Thermaroof®- 3, and Ultra-Max® as the roof insulation in fire endurance rated roof-ceiling assemblies.

Roof Insulation-Foamed Plastic* — 36 by 48 in. (min size) polyisocyanurate foamed plastic insulation boards applied in one or more layers. See Item 9 for min thicknesses with or without the use of gypsum wallboard (Item. 13). No limit on max overall thickness. Boards to be installed with end joints staggered a min of 6 in. in adjacent rows.

Northbrook, Ill., Oct. 28, 2010 - Underwriters Laboratories (UL) announces the launch of the ULtimate Fire Wizard, an Internet-based tool that allows architects, designers and code authorities to quickly identify fire-resistance-rated assembly designs that meet their project specifications.

Design No. P819 Restrained Assembly Rating — 1, 1-1/2 or 2 Hr. (see items 3, 9 and 13) Unrestrained Assembly Rating — 1, 1-1/2 or 2 Hr. (see items 3, 9 and 13) Unrestrained Beam Rating — 1, 1-1/2 or 2 Hr. (see items 9 and 13) Load Restricted for Canadian Applications — See Guide BXUV7 1.