Frequently asked questions for SIPs

What are DBuild & Co SIP panels?

DBuild & Co SIP’s are a high performance, engineered, structural, super insulated wall panel that is fire, moisture, mould, and rot resistant. DBuild & Co SIP’s combine framing, insulation, plaster board, & building wrap in the one component. EPS insulation is structurally bonded between two sheets of DBuild & Co Board. The results is a wall component that is easy and economical to erect and finish, and creates high quality, durable building envelope walls, roofs, and floors that are highly efficient and cost effective.


Are DBuild SIPs Structural?

Yes. DBuild & Co SIPs have been tested to meet all requirements of the DBuild & Co Building Code for structural bracing and durability. We in fact achieve the maximum Bracing Units / per Metre to match any standard or specifically design foundation on the market currently. There is no need for any further materials to stand or brace you walls within your common house.


Can DBuild & Co SIP panels be used for roof or floor assembly?

Yes. We have specific systems designed for use as structural insulated roofs and floors. In many situations this can provide superior insulation and speed of construction when compared to conventional methods. It also provides the client with a superior air seal and control over the air changes within the building when going with the complete system.


Is a vapour barrier or building wrap required?

No. As long as all the joints are properly sealed as part of the construction process a separate vapour barrier / building wrap is not required.


How do I install wiring?

Each panel of DBuild & Co SIPs has three 40mm vertical electrical chases formed in the EPS at 400mm centres. This allows for ample flexibility for power, heating and light switch layouts.


What tools are required?

Regular carpentry tools are primarily all you need. The only unique tool is a hot knife for trimming EPS. The hot knife is needed when DBuild & Co SIPS are cut to size in the field. A regular circular saw is suitable for cutting panels (no special blade needed) – cutting the wall on both sides and cutting the foam core with a reciprocating saw.


How do DBuild & Co SIPs connect?

DBuild & Co SIPS slot over a bottom plate and utilize various proprietary vertical spline connections and a top plate. Please see our Tech Section of the website for connection details.


How do I finish DBuild & Co SIPs

Interior surfaces can be conventionally plastered to an extremely high-quality finish. Exterior surfaces can be directly painted or plastered, or have any other cladding system applied.


Are DBuild & Co SIPs insect and mould resistant?

Yes. DBuild & Co Board and EPS are inert materials without nutrients. Therefore, there is nothing for mould or insects to feed or grow on.


Why won’t DBuild & Co’s SIPs grow mould?

DBuild & Co products are completely non-nutritive so it will not support mold, fungal or insect growth or infestation.


What skills are required to build DBuild & Co SIP panels?

An experienced builder can be easily trained to build with DBuild & Co systems and in fact can use less skilled labour within his crew for his primary help. When you build DBuild & Co SIP’s you can avoid the common pitfalls of conventional framing such as walls that bend, bulge, twist and cup due to poor quality timber or mistakes in framing. DBuild & Co SIP’s are straight, plumb, and square. The surface offers a continuous nail base for exterior finish and interior finishing’s such as cabinetry, trim, doors and wall hangings, without the need to find studs.


How are DBuild & Co SIP panels environmentally friendly?

  • Energy savings of 40 – 60% for heating results in less consumption of fossil fuels / reduced greenhouse gas emissions

  • Reduced job site waste

  • Better living environment – air tightness of walls combined with moisture, mould, and rot resistance allow you to control your indoor air quality better – avoiding the problems of allergies, respiratory problems, etc.

  • The EPS core used in DBuild & Co SIP’s utilize a low environmental impact process of steam expansion that uses pentane and does not contain CFC’s (Chloroflourocarbons) or HFC’s (Hydrochloroflourocarbons) or formaldehyde. EPS is an inert material so there are no issues with dust or off gassing.


Do I need to fix plasterboard over DBuild & Co SIP panels?

No. DBuild & Co comes with preformed tapered edges and can be finished with specified finishing products approved by DBuild & Co. The board comes to a paintable finish’s easily, but we do suggest you make an allowance for lightly skimming the panels if a level 4 or 5 finish is wanting to be achieved. DBuild & Co Board is superior to plasterboard in every testing phase including impact resistance, durability in wet areas, fire spread, structural, mould & insect resistance.

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