These decisions are determined somewhat by climate.
Metal siding over polyisocyanurate foam boards.
I d like to side it in fiber cement siding to match the existing house.
My concern is attaching the metal to the roof without any decking directly below the metal.
As a result i m looking at metal siding as an option.
Heavy siding sagging on screws through exterior foam board.
When using foam insulation you ll need to decide whether you intend to use osb in addition to the rigid foam to serve as the building sheathing or if the rigid foam layer will itself serve as the sheathing and you ll need to determine what will serve as the drainage plane and where this layer will be.
Vinyl siding can be used in original construction or as a replacement for old siding.
I guess depending on the gauge i select it could be fairly heavy also 6.
It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation.
Find polyisocyanurate foam board insulation at lowe s today.
This is the same stuff your disposable coffee cup and is made out of and it s used to protect fragile items in their packaging.
But if you use wood clapboard siding foam sheathing can cause trouble.
5 wrap the house with a moisture barrier usually some type of polystyrene wrap and install desired siding by.
Addition to my house.
Installing rigid foam sheathing.
Put tape along the sides of windows and doors and fold it over onto the wood framing.
Moisture can get trapped between the siding and the foam leading to paint failure and causing clapboards to cup and curl.
It typically is installed over rigid foam board insulation fastened to wood wall sheathing.
If i go with the exterior foam board i am concerned about hanging heavy hardie board siding 2 4 inches away from the studs.
According to my calculations if i want to use rigid foam insulation on the outside of the 2x6 walls with r 21 fiberglass in the wall cavities i need at least r 11 25 in order to avoid condensation on the inside.