One way to limit this is to keep the sheathing warm by adding a layer of rigid foam insulation.
Rigid insulation installation on roof.
It can be applied on the roof floor and walls and it s most widely used in structural insulated panels and insulated concrete forms.
Eps is by far the most versatile of the three rigid insulation options.
Start at the bottom of the roof and place the first piece of rigid foam insulation against the metal flashing starting at the center line.
Scope remove existing roofing and non adhered underlayment to expose roof sheathing.
Eps is also the most inexpensive of the three types of rigid foam insulation while also meeting the required building and energy codes.
The plywood was fastened through the rigid foam to the rafters with long screws.
Apply continuous air control membrane to existing roof sheathing or implement continuous air control at roof sheathing.
Installing rigid foam insulation on top of roof sheathing is a great option for commercial buildings and homes with limited space.
Install rigid insulation board in multiple layers with joints offset vertically and.
This type of insulated roof assembly limits thermal bridging through rafters.
Nail it around the edges with roofing nails.
This article explains what rigid foam is and the benefits it offers.