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Technical parameter for Low rise House by using
SIP for Wall, Roof and Floors
Table 1.1
Applicability Limits
ATTRIBUTE LIMITATION
GENERAL
Building Dimension Maximum building width is 40 feet (12.2 m)
Maximum building length is 60 feet (18 m)
(Consult with structure engineer for bigger size)
Number of Stories 2 stories (above basement)
(Consult with structure engineer for bigger size)
Basic Wind Speed Up to 130 mph (209 km/h)
Wind Exposure Exposures B1 (suburban/wooded)
Exposures C1 (open terrain)
Ground Snow Load 70 psf (3.35 kN/m2) maximum ground snow load
Seismic Zone A, B and C1
Building Height Maximum 35 feet
FLOORS
Floor dead load 10 psf (0.48 kN/m2) maximum
Floor live load
First floor
Second floor (sleeping rooms)
40 psf (1.92 kN/m2) maximum
30 psf (1.44 kN/m2) maximum
WALLS
Wall dead load 10 psf (0.58 kN/m2) maximum
Load bearing wall height 10 feet (3 m) maximum
Deflection Criteria L/240
ROOFS
Roof dead load 12 psf (0.48 kN/m2) maximum total load
Roof snow/live load 70 psf (3.35 kN/m2) maximum ground snow load (16
psf (0.77 kN/m2) minimum Roof Live Load).
Ceiling dead load 5 psf (0.24 kN/m2) maximum
Roof slope 3:12 to 12:12
Rake overhang 12 inches (305 mm) maximum
Attic live load (Limited Storage) 20 psf (0.96 kN/m2) maximum
For SI: 1 inch = 25.4 mm, 1 psf = 0.0479 kN/m2, 1 mph = 1.61 km/hr = 0.447 m/sec, 1 foot = 0.3 m.
1 As defined by the provisions in ASCE 7.
Table 4.2
Nominal Thickness (Inches) for SIP Walls Supporting
SIP or Light-Frame Roofs Only1
Wind
Speed
(3-sec
gust) Snow
Load
(psf)
Building Width (ft)
24 28 32 36 40
Wall Height Wall Height Wall Height Wall Height Wall Height
(ft) (ft) (ft) (ft) (ft)
Exp.
A/B
Exp.
C
8 9 10 8 9 10 8 9 10 8 9 10 8 9 10
85
20 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
30 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
50 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
70 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
100 85
20 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
30 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
50 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
70 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
110 100
20 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
30 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
50 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
70 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
120 110
20 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
30 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
50 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
70 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 6.5 4.5 4.5 6.5
130 120
20 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
30 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
50 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 6.5 4.5 4.5 6.5 4.5 4.5 6.5
70 4.5 4.5 4.5 4.5 4.5 6.5 4.5 4.5 6.5 4.5 6.5 N/A 4.5 6.5 N/A
130
20 4.5 4.5 6.5 4.5 4.5 N/A 4.5 4.5 N/A 4.5 4.5 N/A 4.5 6.5 N/A
30 4.5 4.5 N/A 4.5 4.5 N/A 4.5 4.5 N/A 4.5 6.5 N/A 4.5 6.5 N/A
50 4.5 6.5 N/A 4.5 6.5 N/A 4.5 N/A N/A 6.5 N/A N/A 6.5 N/A N/A
70 4.5 N/A N/A 6.5 N/A N/A 6.5 N/A N/A N/A N/A N/A N/A N/A N/A
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 mph = 1.61 km/hr. 1
Deflection criteria: L/240.
Roof dead load: 7 ps f.
Roof live load: 70 psf
Ceiling dead load: 5 psf.
Ceiling live load: 20 psf.
N/A indicates not applicable (design required).
Table 4.3
Nominal Thickness (Inches) of SIP Walls Supporting
SIP or Light-Frame Story and Roof1
Wind
Speed
(3-sec
gust) Snow
Load
(psf)
Building Width (ft)
24 28 32 36 40
Wall Height Wall Height Wall Height Wall Height Wall Height
(ft) (ft) (ft) (ft) (ft)
Exp.
A/B
Exp.
C
8 9 10 8 9 10 8 9 10 8 9 10 8 9 10
85
20 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
30 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
50 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
70 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 6.5 6.5 6.5 6.5
100 85
20 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5
30 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 6.5
50 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 6.5
70 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 6.5 6.5 6.5 6.5 6.5 N/A N/A
110 100
20 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 6.5
30 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 6.5 6.5
50 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 6.5 6.5 6.5 6.5 N/A
70 4.5 4.5 4.5 4.5 4.5 6.5 6.5 6.5 N/A 6.5 N/A N/A N/A N/A N/A
120 110
20 4.5 4.5 4.5 4.5 4.5 4.5 4.5 6.5 4.5 4.5 4.5 6.5 4.5 6.5 N/A
30 4.5 4.5 4.5 4.5 4.5 6.5 4.5 6.5 4.5 4.5 6.5 N/A 6.5 6.5 N/A
50 4.5 4.5 6.5 4.5 4.5 6.5 4.5 6.5 N/A 6.5 N/A N/A N/A N/A N/A
70 4.5 4.5 6.5 4.5 6.5 N/A 6.5 N/A N/A N/A N/A N/A N/A N/A N/A
130 120
20 4.5 4.5 6.5 4.5 4.5 6.5 4.5 6.5 N/A 4.5 6.5 N/A 6.5 N/A N/A
30 4.5 4.5 6.5 4.5 4.5 N/A 4.5 6.5 N/A 6.5 N/A N/A 6.5 N/A N/A
50 4.5 6.5 N/A 4.5 6.5 N/A 6.5 N/A N/A N/A N/A N/A N/A N/A N/A
70 4.5 6.5 N/A 6.5 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
130
20 6.5 N/A N/A 6.5 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
30 6.5 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
50 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
70 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 mph = 1.61 km/hr 1
Deflection criteria: L/240
Roof dead load: 7 ps f
Roof live load: 70 psf
Ceiling load: 5 psf
Ceiling live load: 20 psf
Second floor live load: 30 psf
Second floor dead load: 10 psf
STRUCTURAL INSULATED P ANELS
Second floor wall dead load: 10 ps f
N/A indicates not applicabl e (design requi red)
1.0 Thermal Resistance for panel
Panel Thickness (Inch) R-Value(USA) U-Value(UK)
4.5 16 0.36
6.5 22 0.26
8.25 29 0.20
10.25 38 0.15
12.25 47 0.12 (P.S. the final thermal resistance of the house w ill be even better if the other parts of the house are proper
insulat ed)
2.0WALL ALLOWABLE LOADS
Quaking SIPs are made of two equal layers of APA rated sheating, 7/16”(11mm) OSB. The core
is 0.95 pcf density EPS adhered to the sheathing with adhesi ve and set under pressure. All flanges are
SPF N0.1 lumber.
4.1 Wall - Axial Loading(plf)
LOAD DESIGN C HART W-1
(OSB SPLINE)
PANEL
HEIGHT
7/16" OSB THICKNESS
EPS CORE THICKNESS
3 1/2" CORE 5 1/2" CORE
AXIAL①
LOAD
8' - 0" 2750 4000
10' - 0" 2500 3500
12' - 0" 2000 3000
14' - 0"
2750
16' - 0"
2500
Notes: ①0 Based on a safety factor of 3.
SIPs are made of two equal layers of APA rated sheating, 7/16
4.2 Wall - Shear Loading(plf)
LOAD DESIGN CHART W-2
(OSB SPLINE)
STRUCTURAL INSULATED PANELS
PANEL
HEIGHT
7/16" OSB THICKNESS
EPS CORE THICKNESS
3 1/2" CORE 5 1/2" CORE
RACKING
SHEAR①
N/A 335 335
Notes:
①Based on a safety factor of 3.
4.3 Wall - Transverse Loading(psf)
LOAD DESIGN CHART W-3
(OSB SPLINE)
STRUCTURAL INSULATED PANELS
PANEL HEIGHT
7/16" OSB THICKNESS
EPS CORE THICKNESS
3 1/2" CORE 5 1/2" CORE
DEFLECTION L/360 L/240 L/180 L/360 L/240 L/180
TRANSVERSE
LOAD
8' - 0" 28 40① 40
① 42 61
① 61
①
10' - 0" 20 30 32① 32 48 49
①
12' - 0" 15 22 27① 26 38 41
①
14' - 0" 21 31 35①
16' - 0" 17 26 31①
Notes:
①Based on a safety factor of 3.
3.0 ROOF/FLOOR ALLOWABLE LOADS
”(11mm) OSB. The core
is 0.95 pcf density EPS adhered to the sheathing with adhesive and set under pressure. All flanges are
SPF N0.1 lumber.
6.1 Roof/Floor - Transverse Loading
LOAD DESIGN CHART R/F-1
(OSB SPLINE)
STRUCTURAL INSULATED PANELS
PANEL SPAN
7/16" OSB THICKNESS
EPS CORE THICKNESS
3 1/2" CORE 5 1/2" CORE 7 1/4" CORE 9 1/4" CORE 11 1/4" CORE
DEFLECTION L/360 L/240 L/180 L/360 L/240 L/180 L/360 L/240 L/180 L/360 L/240 L/180 L/360 L/240 L/180
TRANSVERSE
LOAD/PSF
4'- 0 " 65 80① 80
① 89 122
① 122
① 92 136
① 136
① 107 136
① 136
① 104 136
① 136
①
6'- 0 " 40 53① 53
① 58 81
① 81
① 64 96
① 96
① 75 96
① 96
① 73 96
① 96
①
8'- 0 " 28 40① 40
① 42 61
① 61
① 51 76
① 76
① 61 76
① 76
① 60 76
① 76
①
10'- 0 " 20 30 32① 32 48 49
① 44 64
① 64
① 54 64
① 64
① 55 64
① 64
①
12'- 0 " 40 56① 56
① 51 56
① 56
① 55 56
① 56
①
① LIMITED TO ULTIMATE FAILURE LOAD DIVIDED BY A FACTOR OF SAFETY OF THREE (3).
6.2 Roof/Floor - Transverse Loading
LOAD DESIGN CHART R/F-2
(DOUBLE 2X SPLINE)
STRUCTURAL INSULATED PANELS
PANEL SPAN
7/16" OSB THICKNESS
EPS CORE THICKNESS
5 1/2" CORE 7 1/4" CORE 9 1/4" CORE 11 1/4" CORE
DEFLECTION L/360 L/240 L/180 L/360 L/240 L/180 L/360 L/240 L/180 L/360 L/240 L/180
TRANSVERSE
LOAD/PSF
10'- 0 " 53 79 105①
89 109① 109
① 150 174
① 174
① 177
① 177
① 177
①
12'- 0 " 40 59 79 65 91①
91①
111 145① 145
① 148
① 148
① 148
①
14'- 0 " 30 45 60 48 72 78①
84 124① 124
① 115 127
① 127
①
16'- 0 " 24 35 47 37 55 68①
65 98 109① 89 111
① 111
①
18'- 0 " 19 28 37 28 42 57 51 77 97①
70 99①
99①
20'- 0 " 15 22 30 22 33 44 41 61 82 56 84 89①
22'- 0 " 33 49 66 45 68 81①
24'- 0 " 27 40 54 37 55 73
① LIMITED TO ULTIMATE FAILURE LOAD DIVIDED BY A FACTOR OF SAFETY OF THREE (3).
② DOUBLE 2X MUST BE CONTINUOUS.
6.3 Roof/Floor - Transverse Loading
LOAD DESIGN CHART R/F-3
(I-BEAM SPLINE )
STRUCTURAL INSULATED PANELS
PANEL SPAN
7/16" OSB THICKNESS
EPS CORE THICKNESS
7 1/4" CORE 9 1/4" CORE 11 1/4" CORE
DEFLECTION L/360 L/240 L/180 L/360 L/240 L/180 L/360 L/240 L/180
TRANSVERSE
LOAD/PSF
10'- 0 " 81① 81
① 81
① 118
① 118
① 118
① 131
① 131
① 131
①
12'- 0 " 63 68① 68
① 98
① 98
① 98
① 109 109
① 109
①
14'- 0 " 49 58① 58
① 73 84
① 84
① 87 93
① 93
①
16'- 0 " 38 51① 51
① 55 74
① 74
① 69 82
① 82
①
18'- 0 " 30 45① 45
① 42 63 65
① 55 72 72
20'- 0 " 24 37 40① 33 49 59
① 45 65 65
22'- 0 " 26 39 49① 37 55 57
①
24'- 0 " 21 31 41 30 46 48①
① LIMITED TO ULTIMATE FAILURE LOAD DIVIDED BY A FACTOR OF SAFETY OF THREE (3).
② I-BEAM SPLINE MUST BE CONTINUOUS.
6.4 Roof/Floor - Transverse Loading
LOAD DESIGN CHART R/F-4
(INSULATED I-BEAM SPLINE)
STRUCTURAL INSULATED PANELS
PANEL SPAN
7/16" OSB THICKNESS
EPS CORE THICKNESS
5 1/2" CORE 7 1/4" CORE 9 1/4" CORE 11 1/4" CORE
DEFLECTION L/360 L/240 L/180 L/360 L/240 L/180 L/360 L/240 L/180 L/360 L/240 L/180
TRANSVERSE
LOAD/PSF
10'- 0 " 76 114 132① 101 151 158
① 117 138
① 138
① 149
① 149
① 149
①
12'- 0 " 53 79 96① 72 109 132
① 88 115
① 115
① 124
① 124
① 124
①
14'- 0 " 38 57 70① 54 80 107
① 68 98
① 98
① 106
① 106
① 106
①
16'- 0 " 28 42 54① 40 61 81 53 80 86
① 76 93
① 93
①
18'- 0 " 21 32 42 31 47 62 42 64 64① 64 83 83
20'- 0 " 16 24 32 24 36 49 34 51 52① 50 74
① 74
①
22'- 0 " 28 42 43① 40 60 62
24'- 0 " 23 34 36① 33 49 51
①
① LIMITED TO ULTIMATE FAILURE LOAD DIVIDED BY A FACTOR OF SAFETY OF THREE (3).
② INSULATED I-BEAM SPLINE MUST BE CONTINUOUS.
What is the R-value of panels?
A: There are three methods of heat transfer - convection, conduction and radiation. R-value is the measure of
resistance to heat loss by conduction only. The most important factor in thermal efficiency is the continuity of the
insulation. The system results in a solid envelope of rigid foam insulation. Therefore, an
structure has the ability to resist heat transfer by conduction and convection (air movement). It is resonable to
assume that a conventional home would require an R-40 wall and an R-60 roof to compete with a 6 inch
wall (R-24) and an 8 inch roof (R-32).
How do you wire an structure?
A: A patented electrical chase is factory placed in the panels wherever indicated on your custom blue prints. All
chases are marked on the interior sheathing of the panels for easy identification. Electricians use a fish tape and
feed the wires through panel chases without compressing insulation or drilling through studs. also
includes a detailed electrical guide within our construction guide for your electrician. The roof panels are
pre-wired in the factory per your plan. When exterior wall vent pipes are necessary, chases can be formed in the
foam cores.
How do SIPs react to fire?
A: Because of the solid foam core in a SIPs wall, fire cannot run up the wall cavity. The combustion gases of EPS
have been determined to be non-toxic in accordance with the Federal Hazardous Substance Labeling Act. SIPs
have passed every standard fire test required of wood based or type V construction.
A SIP wall with 1/2-in. drywall on the interior will meet mandated 15-minute resistance requirement for residential
structures. A two-layer of type C drywall will meet the requirements for a one-hour-rated wall assembly.
Warranty?
10-years limited warranty on the structure, following “standard Canadian standard” for residential dwelling
(The OSB manufacturer warrants its product for 10 years, thus the limit.), if properly installed.
