New Home Makeover

From time to time we hear from our customers anbout how happy they are.  Here is a great example of one of those letters.

“We recently had Newell and Crathern weatherization do a full makeover on the exterior of our home. We replaced our windows vinyl siding and shingles. We upgraded our windows to a triple pane energy Star rated window. These are white vinyl replacement windows I love the low maintenance aspect of these plus the look of them. Underneath our new siding they installed a layer of half-inch XPS rigid foam adding R-value and Air barrier where there was none before. This was important to us as our house was built in the late 1800s and had a ton of air coming in through the walls even with blown in insulation in our walls this new air barrier helped out in honestly without a few bills and we are much more comfortable. We have a cathedral ceiling in the top floor of our home which does have insulation in it but when they redid our roof they added a 2 inch layer of rigid foam on top to gain better our value and installed a full layer of ice and water shield below the architectural shingles. The job was very well done we are very happy with everything the crew were very clean and friendly. And we feel much warmer and happier because of the work”

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Improperly Installed Radiant Floor Heat

Here’s a comment from one of our customers about their radiant floor heat which was initially installed incorrectly.

“We recently had an energy audit done on our home by Newell and Crathern weatherization. We discovered that our radiant floor heating system wasn’t properly insulated. We’re always felt like it under perform and never quite met our expectations. Come to find out the people that installed the system didn’t know how they were supposed to insulate it. Newell and Crathern installed a foil faced rigid foam below are radiant tubing leaving a 1 inch gap for better convection in the floor. This was a couple weeks ago we now feel night and day difference as to how our radiant floor feels. The entire experience was great the energy auditor was very knowledgeable and the crew that installed the new insulation were very friendly and clean and professional.”

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Laconia Housing and Redevelopment Authority

In June we installed roughly 6000 Square feet of 2 part closed cell spray foam on the foundation walls below the Scott and Williams Building with a 6 mil plastic vapor barrier over the sand floor sealed to the spray foam.

ScreenHunter_15 Aug. 15 09.21The former Scott & Williams factory was underutilized and was extremely contaminated by releases from storage tanks and the factory’s boiler complex. The Laconia Housing and Redevelopment Authority (LHA) purchased the property for redevelopment without understanding the full extent of contamination associated with the boiler complex. DES worked with LHA during the redevelopment of the property to ensure the contamination was addressed and to minimize the impact of the remedial process on the redevelopment schedule. The property has been redeveloped into the Normandin Square apartment complex with 60 apartments and several businesses.

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The Importance of Understanding Insulation and R Values

It is important to know and understand what type of insulation is used in the various areas of your home and what the needed insulation R value is. For example when insulating a normal attic flat the best and most cost effective product is blown in cellulose insulation. You can use this on top of the existing attic insulation and it fills in all of the nooks and crannies nicely and effectively.

You can achieve the desired goal of an R-50 with blown in cellulose insulation without spending too mush money as cellulose blown in insulation is relatively inexpensive. Blown in cellulose insulation achieves an R-50 value at approximately 16” in depth which is possible in most attics.

As you get closer to the eaves of the home where the roof line ends, the cavity for insulation gets smaller. Sometimes it makes sense to use an insulation with a higher R-value per inch like 2 part spray foam insulation or a Polyisocyanurate ridged foam commonly referred to as Polyiso. Cellulose yields an R-3.6 per inch 2 part spray foam and poly-iso ridged foam yield an R-7 per inch. This is very important when space is at a premium and you need the most insulation per inch.

Make sure whatever insulation company you hire is well versed in different kinds of spray foam insulation, blown in cellulose insulation and roll insulation and knows the proper application needed throughout your home.

For more information about scheduling a home audit contact Newell & Crathern at 228-2102 or visit their websites at or