Insulated vinyl siding is standard vinyl siding with a backing of solid rigid foam insulation.
Do i need foam under my vinyl siding.
Some people use roofing nails but if a strong gust of wind gets under the siding it may not hold.
How to install rigid foam under siding.
But insulated vinyl siding has one unique feature.
Installing foam board insulation under vinyl siding today more than ever before homes are being built with foam board insulation installed on the outside of the sheathing and under the siding.
This detail is used with both new construction and also with renovation work.
Tyvek under 1 4in foam for vinyl siding.
If they use a backer board at all contractors will often call it and sell it as insulation board.
By doing so however you miss out on the opportunity to add add energy savings to the project.
To secure the foam use two inch cap nails.
Contoured insulation that is permanently adhered to vinyl siding.
In order for insulation to really do its job it needs to be in direct contact with what it is insulating.
Apply sealant around windows doors and trim.
Similar to blown in insulation insulated vinyl siding provides r value for improved energy efficiency.
Fit the rigid foam insulation snugly and seal all seams with the specialized tape.
With budgets tighter than ever now contractors and do it youselfers are tearing off the original siding and installing a thin foam board underneath claiming it will improve the energy efficiency of the property.
Below are some of the design details along with the benefits.
By filling the voids behind the siding s stepped profile the insulation makes the complete material stiffer and more resistant to warping and movement than conventional vinyl siding.
And just like flat insulating sheathings and fanfolds insulated siding also levels the wall for a better looking siding job.
But herein lies the problem.
Many people install vinyl siding or concrete board sding to improve the look and value of their home.
The nails have a plastic cap that keeps them from damaging the foam.
Vinyl siding can be installed directly over wall sheathing wood siding or stucco.
That being said the foam should be put on first and left untaped.
Also during this siding process you may also consider asking your contractor to add foam insulation between the vinyl and the house wrap for increased r value.
