Solutions for California Title 24
Title 24 Envelope Highlights Envelope Highlights Mandatory Measures 150.0 There are several new thresholds for mandatory envelope requirements including: Ceiling/Roof insulation maximum = 0.043 U-factor (R- 22 wood framing) Prescriptive High Performance Walls 150.1 In Climate Zones 1-5 & 8-16, above grade framed wall assemblies must not exceed a maximum U-factor of 0.051: 2x6 @ 16 OC framing R19 cavity + R5 continuous 2x4 @ 16 OC framing R15 cavity + R8 continuous In Climate Zones 6 & 7, the maximum U-Factor is 0.065 Prescriptive High Performance Attics 150.1 There are three options that may be used to comply: Option A: Ducts and air handler may be located in the attic Install attic radiant barrier (Zones 2-15) Install R-38 insulation at ceiling (R-30 in zones 3 & 5-7) Install continuous roof deck insulation (Zones 4 & 8-16) R-6 with air space above insulation/ R-8 with no space
Rmax Solutions A complete line of insulation solutions To help meet Title 24 requirements.
Continuous Insulation for Roofs Rmax Nail Base Products Meet CA 2016 Title 24 Roof Insulation Requirements Option A Continuous Insulation Above Roof Rafters No Air Space (R8) or With Air Space (R6)
Vented Nailable Base w/ T24 Chart Composite Panel 7/16 OSB, Vent Space, Polyiso Foam Insulation 1, 1.5 or 2 vent space based on length of run On-line calculators such as www.metalera.com Net free area per linear foot TABLE 150.1-A COMPONENT PACKAGE-A STANDARD BUILDING DESIGN Title 24 Climate Zone 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Building Envelope Insulation: Roofs/Ceilings Option A Continuous Insulation Above Roof Rafter Roof Type No Air Space With Air Space NR NR NR R8 NR NR NR R8 R8 R8 R8 R8 R8 R8 R8 R8 NR NR NR R6 NR NR NR R6 R6 R6 R6 R6 R6 R6 R6 R6
Insulated Roof Deck (half SIPS) Rmax Thermasheath-RDeck Foil faced polyiso laminated to 7/16 OSB *PATENT PENDING* All-In-One Cool Attic Solution Nailable Surface Roof Diaphragm Continuous Insulation Interior Radiant Barrier Finish Meet CA 2016 Title 24 Roof Insulation Requirements Option A Continuous Insulation Above Roof Rafters No Air Space (R8) or With Air Space (R6)
RDeck Installation Nail Board Fasteners Engineering Document Sealed by PE SDPWS, Section 4.2 Tables Nominal unit shear capacities for blocked and unblocked diaphragms Fastener capacity tables
Continuous Insulation for Walls Half- SIPS insulated wall panel- ThermaBase-CI
ThermaBase-CI Fastening Chart for ThermaBase
4-in-1 Approach: One Building Product to Complete the Envelope 1 Structural Bracing Install continuously across the wall to simplify design Install as a braced wall panel with Thermasheath-3 to optimize design costs Eliminates the need for heavy OSB sheathing Decrease time and costs associated with materials and labor 2 2 3 3 R-SEAL Construction Tape 2 Continuous Insulation (c.i.) Polyiso has the highest R/inch of any foam plastic insulation Eliminates thermal bridging Allows you to meet or exceed energy code requirements Lowers energy consumption and energy bills 1 3 3 Air Barrier Prevent air infiltration Keeps the home comfortable Makes your HVAC systems run more efficient 4 4 4 4 Water Barrier Eliminates the need for house wrap or felt Resists water intrusion and moisture migration Defends against the growth of mold and mildew
Recommended Zones Wind Zones: Use prescriptively in wind zones 110 mph Use in higher wind zones requires an engineered design Seismic Zones: Use prescriptively in seismic design categories/regions A, B and C D o, D 1 and D 2 Installation Step 1: Measuring and Cutting Wind Loading Seismic Loading NOTE: With ½ gypsum applied to interior. Adjustment factor needed when there is no interior gypsum. Refer to TER 1207-01 for full details.
Recommended Usage Residential applications with numerous veneers: brick, stone, stucco, siding (wood, vinyl, aluminum), cement board, etc. Exterior wood frame walls Use as intermittent bracing with Thermasheath-3 Use as continuous structural insulated sheathing With taped joints and other standard construction practices for sealing, achieve air barrier and water-resistive barrier (WRB)
Installation - Step 1: Measuring and Cutting Do NOT install panels unless temperature is above 20 F Wear eye protection when using power cutting tools Safety mask may be necessary while cutting this product due to nuisance dust Measure and mark panels for cutting using: Chalk line Straight edge and marker Cut boards on a level, durable surface, using a circular saw Notes for cutting: Do not shave, rasp or carve facers off any panels Rmax does not recommend scoring or cutting the back side of a panel allowing the board to conform to framing regulations Rmax does not recommend the cutting or trimming of panels with the score and snap method Polyiso will not break cleanly or evenly recommend using a sharp, fine-toothed saw
Installation - Step 2: Installing Panels The Rmax logo must face out Install panels vertically with the length dimension of the panels parallel to the framing behind Install directly over studs, refer to TER No. 1207-01 for framing requirements Note: All perimeter edges must be backed and fastened to a framing member.
Installation - Step 2: Installing Panels (continued) Use Thermasheath-SI continuously OR Use Thermasheath-SI in areas where bracing is required per code Integrate remaining wall with Rmax Thermasheath-3 insulation R-SEAL Construction Tape
Installation - Step 3: Fastening Fasten boards using approved staples every 3 along perimeter and every 6 in the fields of the boards Fasteners must be placed not less than 3/8 (9.5 mm) from sheathing edges Staples shall be a minimum 16 gauge, 1/2 or 1 crown, at least 1 1/4 leg and penetrate a minimum of 1 into the stud Nails shall be minimum 0.113 x 2 3/8 and penetrate a minimum of 1 ¼ inch into the stud. Sheathing joints must be butted at framing members and a single row of fasteners must be applied to each panel edge into the stud behind Note: Maintain a minimum 1 penetration into wood studs, fasteners may be countersunk. FASTEN EVERY 3 ALONG PERIMETER FASTEN EVERY 6 IN THE FIELD DO NOT TACK FASTEN COMPLETELY FIRST NOTE: Do not tack sheathing products to framing, but fasten each panel completely once fastening begins.
Installation - Step 4: Taping To achieve a WRB: Tape all joints & protrusions with 3 R-SEAL Construction Tape Center the tape over the joints to cover fastener penetrations Tape must be installed in temperatures between -25 F to 135 F Apply in shingle like fashion starting from bottom up NOTE: Fasteners in the field of the board do not need to be taped to achieve WRB.
Solutions for California Title 24