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LARGE SPAN GROUPADD: No.11, Friendship Street, North Industrial Zone, Zhengding City, Hebei Province, China
This material contains no CFC / HCFC and has an Ozone Depletion Potential of Zero.
K value or thermal conductivity of material used.
OSB3 facings - 0.130W/MK EPS core - 0.230 W/MK
U value is the K value relative to the thickness of insulation or measurement of heat loss.
75mm o/a thickness 0.330 w/m2/'c (weight 16.30 kilo sq mtr)100mm o/a thickness 0.270 w/m2/'c (weight 17.30 kilo sq mtr)125mm o/a thickness 0.170 w/m2/'c (weight 18.30 kilo sq mtr)
Mgo boards and fiber cement board are with A1 fire resistance and excellent waterproof.And EPSwe used is B2 Fire resistance.Of course,If you need B1 EPS.We also can supply.
Light Gauge Steel Truss price for Contractors
Based on our one of the world best fully automatic cold roll forming machine, we offer light gaugesteel truss for roof and floor with the following characters,
Fully engineering data Virtually unlimited truss design - extremely versatile Chord and webs in one plane Lightweight and easily handled on-site Strong weak axis performance - helps prevent damage in handling, reduces bracingrequirements, and provides solid footing for installers and other trades High strength to weight ratios Long span capabilities Mechanically fastened - no welding Layout, design and engineering, and fabrication drawings accomplished with state-of-the-artsoftware
Material: High tension Galvanized Light Gauge steel, G550Thickness: 0.55mm/0.75mm/1.0mm,Specs: Zinc &Aluminum coated with 150g/m2+,
Price: Engineering: USD 300/orderSteel: USD 990/Ton, plus 0.42 USD/Linear Meter
LARGE SPAN GROUPADD: No.11, Friendship Street, North Industrial Zone, Zhengding City, Hebei Province, China
Handing Charge: USD 450/order (document, loading, local transportation)Bolts: USD 0.40/pc, spacer: 0.15/pc, brackets & screws—to be quoted
Lead time: 20 days upon the deposit
Payment: T/T 50% when signing contract, balance payment before delivery.
Shipping: by sea container.
Structural insulated panels
A. Definition:
SIPs are high performance thermal efficient composite panels which consist of a sandwich of twolayers of structural board with an insulating layer of foam in between for walls, roofs and floors innew residential and commercial buildings.
B. Design theory:
Structural Insulated Panels (SIPs) have become a widely used alternative
construction material for homes and other buildings. While many types of Composite Panel buildingsystems have been developed, SIPs now usually refers to panels made from a thick layer of foam(polystyrene or polyurethane) sandwiched between two layers of Oriented Strand Board (OSB),plywood or fiber-cement. The result is an engineered panel that provides structural framing,insulation, and exterior sheathing in a solid, one-piece component.
The basic design concept for SIPs is elegant in its simplicity, and offers several advantages forconstructing walls and roofs. Bonding the foam core to the stiff outer skins creates a web-and-flangestructural strength (along the same principal as an I-beam) across the length and breadth of the panel.With the capacity to handle axial, bending, racking, and shear loads, properly designed andassembled SIPs not only replace conventional framing, but will withstand high wind, and seismicforces.
LARGE SPAN GROUPADD: No.11, Friendship Street, North Industrial Zone, Zhengding City, Hebei Province, China
Architectural BenefitsHigh quality construction method.Comfortably warm, clean, and quiet.Cost BenefitsEqual or lower first costs.Lower long term operating costs.Incentives available from utility service provider for energy efficient design.Lower maintenance costs for you.Construction Process BenefitsEasy to construct, with short learning curve.60% shorter construction timeQuick turnaround time for greater satisfaction.Increased builders production capacity.Environmental Benefits50% less framing lumber.50% more energy efficient.Requires less room at building site (less site disturbance).Less construction waste.
D. Usage:
SIPs are prefabricated systems used primarily for walls and roofs. SIPs employ composite materials,reduce waste through modular construction methods, achieve high insulation values, and may beused instead of many conventional building methods.
E. Alternatives of facing/core materials:
Same characteristic of facing materials: engineered board, such as fiber cement board, MgO Boardand plywood.Sandwich insulating core: PU or XPS.
Comparison of SIPs made by different facing & core materials:
LARGE SPAN GROUPADD: No.11, Friendship Street, North Industrial Zone, Zhengding City, Hebei Province, China
of any SIP panel. After what's called thermaldrift, it's about 6 to 6.8 of R-value per inch ofpanel.
melting point, hot wire burners (the primarymethod of modifying EPS and XPS panels onsite) can't be used.
EPS
Over 80% of the SIP panels installed are EPS.EPS core material is widely available. It is easyto modify on sight and most sip installers haveexperience dealing with EPS. It's also the leastexpensive option in terms of material cost.
XPS
XPS has many of the best characteristics of bothpolyurethane and EPS. It has a high R-value (5R-value per inch of panel). It is dense and stableyet has a relatively low melting point so on-sitemodifications are as easy as EPS. Also, likeEPS, it bonds easily to OSB and gypsum board.
Unfortunately XPS is expensive andmanufactured panels are not widely available
F. Thermal Performance of the Large Span SIP System:
The Large Span SIP s System provides wall and roof assemblies with higher overall (effective)thermal resistance (R-value) than other conventional construction methods. The overall R-value of abuilding assembly includes the effect of thermal bridges as a result of framing members and is ameasure of its ability to resist heat flow through it. The higher the overall R-value of a buildingassembly, the lower the long-term energy costs will be for heating and cooling.
The table below provides typical R-Values of SIPs in different thickness:
leakage rate for a building (quantified in terms of air changes per hour) is often used to determine theenergy efficiency of building construction. Air leakage rates vary widely for different types of houseconstruction with values of 0.2 acph or lower achievable for energy efficient house constructionusing the Large Span SIP System.
The combined high overall R-Value and low air leakage characteristic of buildings built with theLarge Span SIP System results in significantly lower energy costs versus other construction methodssuch as wood frame construction.
resistant to deformation in wet, hot and dry conditions
4) Sound insulation
5) Durability: resistant to halogen accumulation, long lasting strength
6) High dimensional stability
7) Good surface finish
8) Easy to cut, saw, nail, stick, paint and veneer; easy to work, fix and decorate
4. Parameters & Standard:
1) Raw material: non-flammable material magnesium oxide, magnesium chloride, fiberglass,
nonwoven cloth and perlite
2) Density: 0.85 to 1.27g/cm³
3) Flame-resistant: resistant to combustion at 800℃ and remains flameless at 1,200℃
4) Non-flammability: GB8624 grade A
5) Sound insulation: ≥44dB (GBJ121-88)
6) Heat-resistant: thermal conductivity of 0.216W/mK
7) Cold-resistant: can be used at -40 degrees
8) Absorption Moisture: ≤15 %( GB/T7019-1997)
9) Tensile Strength 8-13Mpa (GB/T7019-1997)
5. Installation:
1. Roof-followed keel 2. Ground-followed keel 3. Waling keel 4. Vertical keel 5. Self-tapping screw 6. Expanding screw 7. Sinkwang platform board 8. Concrete washboard base(use when need water proof)
LARGE SPAN GROUPADD: No.11, Friendship Street, North Industrial Zone, Zhengding City, Hebei Province, China