DIY Builds
Photo by Enrique Hoyos Pexels Logo Photo: Enrique Hoyos

What are the 7 insulating materials?

Learn about the following insulation materials: Fiberglass. Mineral wool. Cellulose. Natural fibers. Polystyrene. Polyisocyanurate. Polyurethane. Perlite. More items...

What do you do when your toilet backs into the shower?
What do you do when your toilet backs into the shower?

Using a flashlight, search for any obstructions in the pipe. If you find any blockages that are near the top of the pipe, carefully pull them out...

Read More »
How do you insulate a shed for noise?
How do you insulate a shed for noise?

To do this is very easy. Take your rolls of insulation and tack it to the pre-existing wall. Next, use plasterboard and screw it to the beams of...

Read More »
Can I build my own shed?
Can I build my own shed?

Yes, with the right plans you can build your dream shed.

Learn More »

Polyurethane is a thermoset foam insulation material that contains a low-conductivity gas in its cells. Polyurethane foam insulation is available in closed-cell and open-cell formulas. With closed-cell foam, the high-density cells are closed and filled with a gas that helps the foam expand to fill the spaces around it. Open-cell foam cells are not as dense and are filled with air, which gives the insulation a spongy texture and a lower R-value. Like polyiso foam, the R-value of closed-cell polyurethane insulation can drop over time as some of the low-conductivity gas escapes and air replaces it in a phenomenon known as thermal drift or ageing. Most thermal drift occurs within the first two years after the insulation material is manufactured, after which the R-value remains unchanged unless the foam is damaged. Foil and plastic facings on rigid polyurethane foam panels can help slow down thermal drift. Reflective foil, if installed correctly and facing an open air space, can also act as a radiant barrier. Depending upon the size and orientation of the air space, this can add another R-2 to the overall thermal resistance. Polyurethane insulation is available as a liquid sprayed foam and rigid foam board. It can also be made into laminated insulation panels with a variety of facings. Sprayed or foamed-in-place applications of polyurethane insulation are usually cheaper than installing foam boards, and these applications usually perform better because the liquid foam molds itself to all of the surfaces. All closed-cell polyurethane foam insulation made today is produced with a non-HCFC (hydrochlorofluorocarbon) gas as the foaming agent. Low-density, open-cell polyurethane foams use air as the blowing agent and have an R-value that doesn't change over time. These foams are similar to conventional polyurethane foams but are more flexible. Some low-density varieties use carbon dioxide (CO2) as the foaming agent. Low-density foams are sprayed into open wall cavities and rapidly expand to seal and fill the cavity. Slow expanding foam is also available, which is intended for cavities in existing homes. The liquid foam expands very slowly, reducing the chance of damaging the wall from overexpansion. The foam is water vapor permeable, remains flexible, and is resistant to wicking of moisture. It can provide good air sealing, is fire resistant, and won't sustain a flame. Soy-based, polyurethane liquid spray-foam products are also available. These products can be applied with the same equipment used for petroleum-based polyurethane foam products. Some manufacturers use polyurethane as the insulating material in structural insulated panels (SIPs). Foam board or liquid foam can be used to manufacture a SIP. Liquid foam can be injected between two wood skins under considerable pressure, and, when hardened, the foam produces a strong bond between the foam and the skins. Wall panels made of polyurethane are typically 3.5 inches (89 mm) thick. Ceiling panels are up to 7.5 inches (190 mm) thick. These panels, although more expensive, are more fire and water vapor-diffusion resistant than EPS. They also insulate 30% to 40% better for given thickness.

How much does it cost to build a shed 10x10?
How much does it cost to build a shed 10x10?

Cost Estimator by Size SHED SIZE TYPICAL COST RANGE 10×10 (100 sq. ft) $2,000 to $17,500 10×12 (120 sq. ft) $2,400 to $21,000 12×12 (144 sq. ft)...

Read More »
What is a micro mansion?
What is a micro mansion?

The home is the work of real estate developer Frank McKinney, and is billed as a “Micro Mansion.” Measuring 4,087 square feet, this house is not...

Read More »
These are the Best Shed Plans!
These are the Best Shed Plans!

Comprehensive and Intuitive to follow. Build That Shed!

Learn More »

How can I make 100 dollars fast?
How can I make 100 dollars fast?

The best way to make money fast are methods that require little effort but can make you $100 fast or more: Score cash taking surveys. ... Deliver...

Read More »
Should roof vents be covered in winter?
Should roof vents be covered in winter?

You should absolutely leave your roof vents open during the winter – do not cover them! During the winter, roof ventilation works to keep...

Read More »
Are shed plans easy to follow?
Are shed plans easy to follow?

These are! They guide you every step of the way to complete your dream shed.

Learn More »
What are the best portable buildings?
What are the best portable buildings?

For the highest quality portable shed, at a price you can afford, contact Classic Buildings today. Biker Shed by Classic Building. Inside a Classic...

Read More »
How many studs do I need for a 10x10 shed?
How many studs do I need for a 10x10 shed?

For a 10 foot exterior or interior or partition room or shed wall or load bearing or non bearing wall, you will need 9 to 11 number of 2×4 vertical...

Read More »