Metal Roof Over Sips

For the metal roofing it s a not brainer.

Metal roof over sips.

When the house was built melton sealed the seams between roof panels with tape applied on the bottom of the panels. Sip panels must be air and watertight. Make certain to tape seal all panel joints. We ll strap it and create an air space but we ve never done a torch down on sips.

Can i install a metal roof directly over top of the sips. Specifying a cold roof or simply over sheathing the roof with an additional layer of osb staggered over the panel joints will eliminate the possibility of shingle ridging. Several assemblies that prevent shingle ridging are described in the builder s guide to structural insulated panels sips. Here are some important considerations.

There is a guy in nh that places pex tubing in the space between the strapping and uses this for solar hot water collection. The moisture is very obvious at the seams an appears to have leaked through from the inside of the home. The ridges caused by the expansion of sip roof panels may be an aesthetic blemish but it does not affect the performance of the roofing or the sip roof panels. Chris the metal roof went on top of the sips with triflex between.

I would suggest allowing this to vent in some way the metal directly over the sips roof even with ice and water will get extremely hot.