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Technical Specifications and Supporting Information

SIPs Industries adopt industry best practice and embrace all the recommendations laid down by the UK SIP Association in the Technical Bulletins and Code of Practice.

We would strongly recommend that you download the full suite of Technical information provided by the UK SIP Association when determining the details required for your project.

Technical support can be provided by SIPs Industries as required.

Technical Documents

Example drawings of details and example U-value calculations are available on our Downloads page.


Independent tests on SIPs Industries panels have shown that they can be up to 7 times stronger than conventional timber frame.


Specifications Table

Fire Safety

The standard finish for interior walls and ceilings is dry lining using one layer of 12.5mm plasterboard with fire-tape on the joints. This achieves a Class 1 fire rating.

The optimum Class 0 (zero) fire rating is achieved if two layers of plasterboard are applied.

Panels have passed the rigorous fire endurance tests. The solid-core panel construction eliminates the chimney effect that causes fires to spread rapidly through hollow conventional-built walls. The super-bonding, insulating foam we use is non-toxic and chemically inert.

Life Expectancy

The SIPs Industries panels are deemed fit to last the life expectancy of the building.

Roof design

Recommended roof design is carried out by a structural engineer where necessary. Panel fixings supplied with the panels are deemed to satisfy this. In areas of high winds or loads or where light weight roof systems are incorporated, it is advisable to add fixing straps at recommended intervals, connecting the underside of the roof panel to the vertical wall members.

Foundation to wall detail

Sole plates are attached to the slab by means of mechanical fixing at specified centres. The sole plate is made of treated soft wood, width dependant on the thickness of the panel core.

Typical Details

Typical Details

Typical Details


It is recommended that all enquires be directed through our offices for jointing details as these change from application to application. All drawings are processed through a structural engineer and are fully certified.

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