SIPTEC SIPs are also known as structural insulated panels or SIP systems; they are a material and labour-saving alternative to traditional timber framing and masonry construction. The insulation within the panels is continuous and is not bridged by timber studs. Structural insulated panels have been in use for more than 50 years, they offer an energy efficient building system that is simple to build with and thus substantially reduces on-site labour time and cost.
Siptec Sips can be used as structural walls (including foundation walls), floors and roofs, either independently or in combination. SIPs can also be used with timber and steel frame buildings. The greatest savings in time, energy, and materials used, is achieved when Siptec panels are used for the entire structure.
Siptec Sips offer excellent structural performance because they are sheathed on both faces and the sheathing is fully adhered across their entire surfaces, they behave as an integral composite system and resist wind forces and building loadings better than timber framing.
The Siptec Structural Insulated Panel has a PU foam core, faced with oriented strand board, OSB or Cement Particle Board, CPB. CPB panel facings are a class 0 building board with superior fire, acoustic and weathering qualities to other facings. The direct application of rendered finishes is acceptable on Siptec CPB facings, CPB facings can stand freeze thaw weathering even without painting.
Siptec Sips are made by the pressure injection method, a process that produces a consistent high quality product and virtually eradicates operator / manufacturing errors, delamination of Siptec Sips is just not an issue.
Siptec Systems maintain an R-value of six per 25 mm thickness, compared with EPS at four per 25mm. The facings distribute and carry the structural loading while the bonded foam core provides insulation and keeps the two skins aligned.
Siptec Sips are made 30, 60 & 120 cms wide x 2.4, 2.7 & 3 mtrs. Roof sips are made up to 6 mtrs long and 125,150 & 200 mm thick, there are several methods of joining Sips depending on the application.
Sip Buildings go up fast and give a weather tight shell early in the construction process because Sips incorporate both the structural frame and thermal insulation in a single step, supervision and co-ordination of trades are simplified. Siptec offer a full design and engineering service. Siptec can custom produce panels (RTA Panels) by pre-cutting rough openings, edges, angles, and other complex shapes, these are then delivered to site ready for installation, or the company can show you or your builder on site how to proceed.
Environmental Performance Sips are resource efficient, they use less wood than conventional framing and the facings provide an efficient use of wood fiber while the foam core material has very high insulation values. Although the foam core comes from a non-renewable resource, it is an efficient use of this resource, one litre of an oil refining by-product is converted to create forty cubic litres of PU foam. Overall, Sips are a resource-efficient building technology with significant energy efficiency and forest conservation benefits. A Siptec House gives significant savings on building shell cost.
Economies in Time & Material
A SIP demonstration house was built at the University of Oregon, they calculated that using SIPs they saved 2,720 board feet of wood that’s nearly 50% of the framing timber for conventional construction and the house required 161 fewer man-hours to build.
Thermal Efficiency is maintained throughout the building’s life, the closed cell foam does not allow moisture ingress to degrade the insulation performance as occurs with mineral wools and blown cellulose fiber products.
Energy Efficiency Siptec homes are very energy efficient when sips are used throughout the whole building envelope.
The insulation is continuous and Sips allow little air leakage, so a SIP house is generally easier to make airtight than a conventional house. A house built with Siptec SIPs will give energy savings of 40% - 60% compared to a timber-frame house of equal size and Insulation U value. This is largely due to the more efficient insulation that eliminates any potential for thermo siphoning or wind washing which can be a problem with glass fiber batts or cellulose fiber insulation, the panels themselves provide the required air and vapour barrier however, to ensure a tight (draft free) home, the joints at the panel to floor, panel to panel, panel to roof, and at penetrations must be sealed with Siptec adhesive.
The SipHouse® roof structure encloses a large volume while creating interesting living spaces, because the panels do not have open cavities, they require different approaches to plumbing and electrical installations Siptec supply client’s with information on these kinds of details. Sips faced with 12.5mm of plasterboard meet the UK fire regulations. The UK government is actively promoting the use of Sip Building and whilst officials are not necessarily familiar with sips they have generally been receptive to their use but will ask for a professional engineer to verify the structural performance. Siptec can supply this service.
SIPTEC Finishes - Any type of conventional finish can be applied to Siptec Sips.

Siptec
P O Box 429
Turvey
Beds
MK43 8DT

Tel: 01234 881280
Fax: 01234 252006
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