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Architectural and Green News

Sustainable walls part 3
Posted on 29 Dec 2008 under Architectural NewsArchitectural News icon
Green product selection is a key component of sustainable design. Green products can be defined as those that reduce, recycle and renew - the three R’s of sustainability.

Choosing the correct wall system is part of good sustainable design. Today we are going to talk about structural insulated panel (SIP) wall systems, their benefits and drawbacks.

SIP wall systemStructural insulated panel (SIP) wall systems are an engineered pre-fabricated sandwich of structural sheathing such as oriented strand board(OSB), cement fiber board, or various types of metal surrounding a solid foam insulating core.
SIPs provide a high R-value(R20 or higher) with the benefits of a high strength-to-weight ratio. Panels are produced in widths up to 4' and lengths up to 24'.

SIPs Features & Benefits
  • Energy Savings - Save 40%-60% on energy costs over stick-framing
  • Safer - SIP buildings provide 2 1/2 times the added strength compared to regular stick-frame building.
  • Fast Construction Cycle - Installation of custom SIPs takes hours instead of days resulting in substantial labor savings. Less skilled labor is needed for construction.
  • Healthier Indoor Air - less air infiltration, this means a healthier home
  • Quieter - SIP homes substantially reduce exterior noise
  • Reduced HVAC Costs - Better insulation means a reduction of furnace and air-conditioner size and the ability to use smaller ductwork.
  • Reduced On-Site Material Waste - Substantially less waste is produced on the job site because most of the framing is already completed in the factory.
  • Quicker Construction Cycle - Framing, insulating and sheathing are completed in one step. Rough openings are pre-installed and bucked out. Once walls and roofs are in place, shingles, doors & windows can be installed to secure the structure sooner.
  • Less dimensional lumber used. Superior insulation in building reduces the need for heating fuels and creates less pollution in the air.
  • Better protection against floods and storms
  • HERS (Home Energy Rating System) score of 86 or higher
  • SIP systems can help homeowners pursue Energy Star® ratings and energy-efficient mortgages.

SIPs Drawbacks
  • Requires proper panel fabrication (proper panel gluing, pressing, and curing is critical to prevent delamination)
  • Panels must be flat, plumb, and have well designed connections to ensure tightness of construction
  • Though SIPs offer ease of construction, installers require training for the system
  • Fire-rating of SIP materials and air-tightness of SIP installation affect the system’s fire safety
  • Potential insect and rodent mitigation issues depending on SIP materials and construction
  • More expensive and may need to be transported greater distances.
  • Steel SIPs require an insulation break between the exterior of the panel and the exterior shell of the home or building.

SIPs are a safe, strong, energy efficient, cost effective, and environmentally friendly construction method. Any additional costs can easily be recovered through lower insurance premiums and energy costs.
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6 Comments


[Posted by regqqqqytdghRG @ 28 Apr 2013 09:59 am]
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[Posted by klbrob @ 20 Sep 2012 01:46 pm]
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[Posted by uqzhzrumioa @ 20 Sep 2012 01:19 am]
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[Posted by fpjjnefmza @ 18 Sep 2012 06:50 pm]
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[Posted by xkbrcwwms @ 18 Sep 2012 02:33 am]
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[Posted by Mohamed @ 17 Sep 2012 11:51 am]
That Shanghai version may be cmniog at the end of April may be cmniog through again.You will be part of that version' helping me to sip through some tea.shangrila-la cannot seem to figure out what spring means,Jeff
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