8/7/2023 0 Comments Sip panels for roofThe thermal efficiency and waterproofing properties of our structural foam core are the highest available allowing for thinner, stronger wall construction with full vapor barrier which still achieves the same overall finished thickness of wall. Ideal for Granny Flats, Tiny Homes, Cabins, Container Homes and even Floating Homes! ( view our latest floating home project HERE). Our panels are lightweight yet strong which also provide the perfect solution for the modular home industry where there is currently very little, if any, viable options available for single skin Sip’s panel wall systems. Our system allows for fast efficient build times with a fully watertight shell within days, so you can move straight onto internal fit out works. SiPclad® panels are all delivered pre-finished and easily connected using our patent pending corner joining detail including any service conduits for electrical and plumbing needs. Further to this your building would also need a waterproof membrane wrap to protect the external skin, as well as internal wall lining (such as plasterboard). In a standard house building scenario the SIP’s panels would provide the internal wall structure and insulation, however, these walls still require an external protective & decorative skin such as cladding(and battens). With this rigid insulation core SIP’s panels share the same structural properties as an I-Beam or I-column with the benefit of an insulated vapor barrier, allowing exceptional thermal performance all year round in any climate. The core is most commonly expanded(EPS) or extruded polystyrene(XPS) foam, or in our case polyurethane foam(PU). The outer layers could be sheet metal, plywood, cement board, magnesium oxide or oriented strand board(OSB). This may seem like an extra, expensive step but it’s absolutely necessary in order to prolong the life of the roof and provide a maintenance free roof.A SIP’s panel, also know as a Sandwich panel generally consists of an insulating layer of rigid core foam sandwiched between two layers of structural board and used widely as a home building material. Without this detail the roof could be prone to ice dams from sun induced melting and possible water damage from leaking water vapor hitting the cold surface of the SIP’s. This detail also creates a very nice shadow line. We installed a piece of aluminum strip vent on the bottom of the strapping tight to the face of the lower fascia, and tight to the back of the upper fascia. The upper 1×3 is nailed to the end of the 1×3 strapping, it’s flush to the top of the upper roof sheathing, and hangs down below the strapping. The lower piece is a 1×8 attached directly to the end of the SIP panel. If you want to reduce time on installation labor, save money on energy costs, we are the SIP panel manufacturer for you. In the photo above you can see two pieces of fascia. Structural insulated SIP Roof Panels are the future of residential and commercial construction. The ridge of the roof will include a traditional ridge vent. UNILIN offered a structural insulated roof panel to meet our demands while also. The soffit detail for this house will include a 2″ wide continuous strip vent. All roof panels have the necessary certificates, technical approvals and. Then we install a layer of 5/8″ sheathing which will be our final roof surface under the shingles or metal roof.Īs you can see above the trapping creates air voids between the 5/8″ roof sheathing and the top of the sip panels. To accomplish this we install 1×3 pine strapping along the roof every 18″. The air travels up the roof pitch and exits at the roof peak. The cold roof is very similar to traditional ventilated roofs in the sense that air is allowed to enter the eaves of the roof through a vent. In order to avoid that situation we use a ventilated cold roof. If water laden air passes through joints in the SIP’s it could hit the cold roofing surface and condense leading to possible rotting problems on the SIP panels. While Urethane insulation can stop interior water vapor from hitting the cold roof surface these panels do have joints that could possibly let air through. The SIP’s are 6-1/2″ thick Urethane foam panels that create an amazing insulation layer and a great vapor barrier. The roof consists of traditional timber framed rafters and purlins which support structural insulated panels (SIP’s). In the photo above you can see a timber frame home that we built. In this article I’ll show you how we use ventilated cold roofs on timber framed homes that have SIP’s roof panels. Ventilated roofs are nothing new, however ventilated cold roof are used on SIP roofs in order to prevent ice dams, damage from trapped moisture and a second layer of defense for roof leaks.
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