Metal Roof Over Sips

The moisture is very obvious at the seams an appears to have leaked through from the inside of the home.

Metal roof over sips.

The pitch of the roof is very low only 1 2 inch in 12 and the metal roofing has been applied directly over the sips with no air channel beneath the roofing for ventilation. For the metal roofing it s a not brainer. 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. The roof structure is 10 25 sips on a 2 12 pitch and the developers are going with either metal roofing or a torch down system.

There is a guy in nh that places pex tubing in the space between the strapping and uses this for solar hot water collection. Chris the metal roof went on top of the sips with triflex between. Sip panels must be air and watertight. Ensure that panel joints are level to one another as variations in panel height can cause deflection in the roofing material.

Make certain to tape seal all panel joints. 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. We ll strap it and create an air space but we ve never done a torch down on sips.

When the house was built melton sealed the seams between roof panels with tape applied on the bottom of the panels.