DJG Insulation LLC

10/15/2026

It comes down to one question. Is your crawl space vented to the outside, or sealed up?

If it's vented, with those little screened openings in the foundation, the insulation goes up in the floor joists, under the rooms you live in. If it's sealed, or you're about to seal it, the insulation moves to the crawl space walls, and the ground gets covered with a v***r barrier. The U.S. Department of Energy lays it out that same way. What you shouldn't do is mix them up, like stuffing batts in the joists of a sealed crawl space, or insulating the walls of one that's still pulling in outside air through open vents.

So let's go through both, plus what New Jersey's energy code actually asks for.

Should you insulate crawl space floor joists or walls in New Jersey? Vented vs sealed crawl spaces, NJ code R-values by county, v***r barriers and foam

09/16/2026

NJ homeowners complain about abnormally cold floors and drafts at the basement edge as soon as winter sets in. Many homeowners think they just have to live with it, blaming the weather for the cold floor. In reality, winter makes the floor cold, but not freezing. It’s normal to grab socks to cover your feet in winter, but if you need an extra pair to keep your body heat normal, then it’s a problem you need to pay attention to. Whenever you experience cold air currents circulating in your home and making the whole area chilly, the main culprit is the rim joist. Every NJ homeowner must understand what a rim joist is and why rim joist insulation matters.

Why Cold Floors and Drafts Start at the Basement Edge?

Do You Have Cold & Drafty Floors?

Below are 4 main reasons cold floors and drafts start at the basement edge.

Uninsulated rim joist

The rim joist, also known as a band joist, is an integral part of a wood structure located at the top of your foundation wall.

Learn why cold floors and drafts start at the basement edge in NJ homes, and how rim joist insulation fixes the problem.

09/13/2026

08/11/2026

There are a bunch of different kinds of insulation that could be put in a house, and attic insulation is specifically the focus here.

Let’s learn about attic insulation.

Building Code and R-Value Requirements

Depending on what zone or region a home is in, building code requires a certain R-value. R value is how the amount of insulation is measured, the resistance to thermal heat or thermal transfer.

Attic Insulation in NJ

Depending on how much R value is present, that will determine how much heat gets transferred into the home from summer heat, how heat in the attic transfers down into the home, or how heat escapes in the wintertime from inside the home into the attic. That attic insulation slows, reduces, and lowers that transfer of heat. If insulation is compressed or compacted, it's not going to be functioning properly at all.

Batt vs. Blown-In Insulation

There are different kinds of insulation seen in attics.

Learn attic insulation types, R-value requirements, batt vs. blown-in options, and how proper depth protects your roof.

07/28/2026

PERFECT EX*****ON FROM THE SPRAYERS AT DJG INSULATION, ONTHIS BEAUTIFUL RUMSON HOME 📍
DJG Insulation LLC

Spraying Foam Insulation in your crawl space will provide crucial air sealing, moisture control, and energy savings!! 💰

These are Key reasons include stopping cold winter drafts, preventing mold caused by high NJ humidity, and lowering monthly utility costs!!💰

07/24/2026

BEST INSULATED GARAGE AROUND 🏡🛠️

We provide expert solutions, no matter the size of your project, residential or commercial. DJG Insulation is ready to elevate your construction game with cutting-edge insulation solutions.

Contact us today for free estimates!

💻 Djginsulation.com

📲 732-890-1115

🖨️ [email protected]

07/23/2026

Sometimes you can see that your air conditioning isn't cooling off outside. If the AC line set insulation is degraded, falling apart, flaking off, or has exposed sections, the refrigerant line is exposed. The pipe is being exposed to heat; it is not keeping cool temperatures as well as it should, and it affects the efficiency of the unit.

Along with that, there are a lot of other issues. In this blog, we will discuss this topic in more detail.

Check the AC Line Set Insulation

The AC line set handles the refrigerant. It starts at the AC unit and goes all the way up and enters the house.

Insulate Your Walls to Keep The Cool Air In!

When there is exposed metal where the refrigerant is running through, it is very cold. You want it to stay cold, but if it is exposed, especially the more of the line that is exposed, there will be heat gain. The pipe is being exposed to heat, and it is not keeping cool temperatures as well as it should, which affects the efficiency of the unit.

Fix degraded AC line insulation: remove damage, install rubber pipe insulation, seal with tape, add UV protective sleeve.

07/07/2026

Almost every family member loves to live in a peaceful environment. But unfortunately, noise can travel through walls, ceilings, and floors, which affects the home environment. However, most of the houses are located near highways or markets. That’s why people have to continuously bear unwanted sounds of traffic, noisy neighbourhoods, and other machinery.

If there are people who work from home or students who have to study, they need a calm and silent space to focus on their work. The only solution to this issue is to install soundproofing at home. Insulation can help to reduce the noise to maximum levels. Besides that, you should also know that there are different insulation materials that work as sound absorbers.

This guide will provide you with complete information related to how insulation works, various types of insulation, where insulation should be placed, and more.

Soundproofing Your Home With Insulation

How Does Insulation Help in Reducing Noise?

Soundproofing insulation options: mineral wool, fiberglass, cellulose, spray foam. Reduce airborne and impact noise at home.

06/23/2026

Every house has that one room. Arctic in January, a sauna comes in July, and the thermostat might as well be decorative. Meanwhile, the energy bill climbs, your HVAC grinding away to fix what it just can't. The real problem? It's tucked inside the walls. Missing insulation, or insulation that quit years ago.

Batt insulation is the straightforward fix. Reliable, affordable, proven. For New Jersey homes and businesses, it cuts the waste and cranks up the comfort, both at once.

What It Is and Why It Pays Off

No mystery here. It's one of the oldest, most trusted tricks in the whole building trade, and it still works beautifully.

The Basics, Quickly

Batt Insulation in NJ

Batt insulation is pre-cut panels, sometimes long rolls. Fiberglass, usually, or dense mineral wool. They slot between the studs, joists, and rafters, building one unbroken thermal barrier. That barrier slows the flow of heat, keeping warmth in winter and heat locked out in summer.

06/09/2026

How is it that you're going to soundproof the wall when you don't even own it? How are you going to add an extra layer of drywall onto the wall to stop those sound waves, so you can't hear your noisy neighbors anymore?

There are a few things that you can do, even if you're renting, that can reduce some of the noise, and they apply to reducing noise in homes and businesses across New Jersey.

Why Acoustic Foam Is Not the Answer

There's a lot of information online telling you to just add some acoustic foam onto the wall, and that will solve all of your problems. The thing is, acoustic foam is a sound absorber, it's not a sound blocker. All this will do is reduce the echo in the room that you're in.

Soundproof Solutions for Home & Business

It's not going to stop the sound waves from your noisy neighbors from coming into your unit, so acoustic foam is not really the way to go for reducing noise in your residential property or business.

Learn how to reduce noise in homes and businesses in New Jersey. Add mass on the wall, seal electrical outlets, and treat the windows.