Thermax sheathing is a non structural rigid board insulation consisting of a glass fiber infused polyisocyanurate foam core laminated between 1 0 mil smooth reflective aluminum facers on both sides.
Foil faced rigid insulation panels.
It is lightweight and easy to use and provides an optimum balance between performance and cost.
The different facings can affect the performance of the panel both in terms of durability and perm rating.
However foil faced iso panels are warranted as impermeable.
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They re much lighter and easier to work with than plywood sheets.
The glass fiber reinforcement contributes to improved fire performance and dimensional stability.
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Hunter panels the innovator of polyiso insulation products an interesting thing happened 22 years ago when hunter set out to manufacture the absolute most effective efficient and innovative polyiso insulation panels available anywhere we also created the finest customer service organization and builder support team in the industry.
Working with home insulation boards insulation panels typically come in 4x8 foot sheets.
If you want to use them without creating a vapor barrier look for permeable iso panels faced with fiberglass.
Insulfoam rigid foam is a high performance built to spec sheathing insulation that provides superior r value and moisture resistance.
Foil faced panels are considered impermeable because applying these products as sheathing creates an exterior vapor barrier they never should be used with an interior vapor barrier more permeable panels are faced with fiberglass and can be used without creating a vapor barrier.
1 in x 4 ft x 8 ft ap foil 1 faced polyisocyanurate foam board insulation item 101645 model 90001019.
It is offered in multiple thicknesses and dimensions in both square edged and tongue and groove joints.
Smaller sizes are also available.
This is also why all iso panels are faced.
Products with foil facing help the panels resist moisture vapor.
Install them using panel adhesive or screws.
Johns manville r 6 common.