using rigid foam board behind exterior shower walls

Insulation Air Barriers and Waterproofing | WATERPROOF

However rigid sheet foam is impermeable to water vapor and when a structure is sheathed in several inches of continuous insulation exterior walls no longer meet this requirement. To prevent moisture and mold builders must either add enough foam to the exterior that the sheathing never falls below the dew point or build in such a way that 【Get Price】

Can You Add Rigid-Foam Insulation On the Inside of a Wall

His goal is to boost the R-value and improve the air-sealing in exterior walls by adding a layer of rigid foam insulation on the inside after filling the walls with cellulose. To provide a solid foundation for hanging cabinets Nash plans to add a layer of 1/2-in. plywood over the foam and cap it with 1/2-in. drywall.【Get Price】

How to Insulate Behind Shower Walls | Home Guides | SF Gate

New Construction. In the best-case scenario you can insulate the wall behind the shower during initial construction at the same time you insulate the rest of the exterior walls.【Get Price】

Floodproofing Improvements for Walls and Floors

Sheathing is on the outside of the studs and behind the brick or siding). Even if that sheathing is water-resistant it is likely to stay wet long enough for mold and wood fungus to become a serious problem. The preferred application would be to use two-inches of rigid foam board cut to fit tightly between the studs and placed against the 【Get Price】

Rigid Foam Board Insulation Between Studs - The Spruce

The correct method of using rigid foam is to run continuous 4-foot by 8-foot sheets of the foam across the concrete basement wall making the rigid foam the de facto wall. After that thin furring strips are installed on top of the foam to provide a firm base for the drywall screws and drywall.【Get Price】

Exterior Bathroom Wall Insulating | DIY Home Improvement Forum

(example: XPS is R-5 per inch so a 2x4 wall will give R-17.5 while a 3-1/2" batt can give R-15. A minimal R gain for the cost difference.) The true benefits of spray foam is the air sealing capabilities. The true benefit of rigid foam is the thermal bridging capabilities.【Get Price】

Mistakes often made with rigid foam on exterior walls - YouTube

This video shows an example of a home that has rigid foam installed on it but not quite the way we would recommend. If you are wanting to create a thermal b【Get Price】

Best way to insulate between studs with rigid foam

The 2" EPS foam is ship lapped and laminated to a wallboard manufactured with inorganic materials that is taped and finished in the same way as is gypsum board. The great thing about the product (not sure if I'm allowed to name "names") is that it is installed with an air space between the insulation and concrete foundation that vents into the 【Get Price】

How to Install Drywall Directly to Rigid Foam Sheathing | SBC

These days rigid foam is usually installed on the exterior but back in the ’80s I installed a lot of drywall directly over interior foam board — typically 1-inch foil-faced polyisocyanurate fastened right to the framing. We had to do several things differently to make that approach work.【Get Price】

Plywood Behind Shower Panels - The Fabricator Network - Forum

Anyone use plywood behind shower panels? We have a customer that would like to use 3/4" plywood in the same way you would attach drywall as a substrate for the solid surface panels. His reasoning is so that he can place grab bars anywhere he likes later on in life when needed without having to determine the exact location right now.【Get Price】

Exterior Rigid Insulation Best Practices -

Exterior Rigid Insulation Best Practices TOP INNOVATOR: BSC PHI NorthernSTAR Field studies by Building America’s research teams show the most effective ways to take advantage of the thermal air and vapor resistance properties of rigid foam insulation on walls roofs and foundations.【Get Price】

What You Need to Know About Foam Board Insulation

When to use foam board insulation? Because of its resistance to moisture foam board insulation is a great choice whenever and wherever there is a chance it could get wet such as: an exterior foundation inside a basement against the foundation and on the outside of a house beneath a house wrap.【Get Price】

Installing Tile on Exterior Wall of house for Shower | The

I am wondering if it is okay to put insulation behind cement backer board for shower. This is an exterior wall of the house that is going to be the wall for our shower. Right now I have it down to the studs. I will be putting insulation in then using a Cement Backer Board to lay tile on.【Get Price】

GoBoard Shower System - Johns Manville

GoBoard® Shower System from Johns Manville is a time saving versatile shower system and it's the right choice for both DIYers and pros. FAST INSTALLATION: Using GoBoard Point Drain kit and pre-sloped Wedges there is no need to wait for specially sized pans. Take a break and tile the same day.【Get Price】


The best insulation to use is rigid foam which is largely unaffected by moisture. There are some small theoretical advantages to insulating on the exterior having to do with thermal mass but these are far outweighed by practical concerns. Parging over exterior foam board is easily damaged by lawnmowers and normal wear and tear. INTERIOR VS.【Get Price】

4 Installation Techniques for Styrofoam™ XPS Insulation

The choice of fastener for Styrofoam™ Brand Extruded Polystyrene Foam Insulation is completely dependent on the application. There are many fastener manufacturers located throughout North America. You can consult your local construction supplier for advice on which fasteners should be used for a particular application.【Get Price】

Insulating on the Outside | Building and Construction

So using 1×4 let-in braces may not be an automatic solution when building foam-sheathed walls Metal bracing may not be the answer either. Several manufacturers of rigid foam insulation recommend metal strap bracing as a structural solution for foam-sheathed walls. Building codes allow them as substitutes for 1”x4” let in braces.【Get Price】

Tile Backer Board Breakdown which one is best for showers

I am completing a shower stall and would like to use the Wedi board but my glass guy is concerned about using a foam product behind the tile where the glass door will hang. The door will weigh up to 80lbs and have three hinge points and my glass Seven Trust thinks the foam will not support the weight.【Get Price】

A Recessed Shampoo Niche in an Exterior Wall | DIYTileGuy

Insulating a Recessed Shampoo Niche in an Exterior Wall of a Shower. Most exterior walls are 2×6 framing. I recommend buying a pre-made foam niche such as the Laticrete Hydroban niche Noble Niche Kerdi Niche from Schluter Wedi niche or USG Durock Niche. They come in a variety of sizes and are made to fit in a typical stud bay.【Get Price】

insulation - Rigid foam board in walls between studs plus

I've got access to some discounted (factory seconds) of rigid foam board and looking to cut it up and place it against the exterior walls on the inside of an old (1894) converted house that is now four 1br apartments. Thinking of going with 1" of rigid foam board and then adding a fiberglass batt on the inside of that.【Get Price】

Should I Use Foam Insulation Under My Vinyl Siding? | eHow

Rigid foam insulation is available in different thicknesses. If you purchase foam insulation that is too thick it may pose a problem by pushing the wall system too far out from the existing windows and trim. If you are doing a remodeling of the entire exterior or new construction this may not be a concern.【Get Price】

Controlling Cold-Weather Condensation with Insulation | BSC

Condensation within walls during cold weather is a common performance problem. Most such condensation is due to air leakage not diffusion. Although air barrier and vapor control layers can reduce the quantity and occurrence of condensation due to both mechanisms the use of exterior insulation (even if that insulation is a vapor barrier and/or air barrier) can warm sensitive surfaces within a 【Get Price】

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