C·N·D
Insulation · Anchorage, Alaska
(907) 277-3568Call (907) 277-3568
CND
No. 01 · The Envelope Issue
Insulation installer placing pink stone wool batts between studs — archival craftsman detail
Plate · R-21 batt, 2×6 stud bay

Cnd Quality Insulation · Anchorage, Alaska

Insulationfor Anchorage.Spray foam, cellulose, and air sealing — done for Alaska winters.

We work on the whole envelope: attic batts, blown cellulose, spray foam to the rim joist, and the slow careful air sealing that keeps the heat where you paid to put it.

schedule a survey →
Licensed contractorFully insured724 O Street
No. 01 · Vol. IAnchorage · Eagle River · JBER · Hillside(907) 277-3568
No. 01 · The Envelope, four zones01 / 04

The envelope,
layer by layer.

Zone 01 · R-49 to R-60
The attic

First place the heat leaves. We add depth, level the existing batts, and seal every penetration before the new cellulose is blown.

  • §01Blown cellulose to R-60 (Anchorage code minimum: R-49)
  • §02Attic-hatch insulated and weatherstripped
  • §03All can-light penetrations IC-rated and sealed
→ next: the wall cavity
The attic — R-49 to R-60
Zone 02 · R-21 to R-23
The wall cavity

Where new construction and remodels meet the cold. Closed-cell foam for moisture-prone walls, dense-packed cellulose for retrofit, batts when the cavity is open and clean.

  • §01Closed-cell spray foam for bathroom and exterior walls
  • §02Dense-packed cellulose retrofit through 2″ ports
  • §03R-23 mineral wool batts for sound and fire separation
→ next: the rim joist
The wall cavity — R-21 to R-23
Zone 03 · R-19+ air-sealed
The rim joist

The seam between the slab and the floor framing. Single biggest air leak in most Anchorage homes. We seal it with two inches of closed-cell foam, every house, every time.

  • §012″ closed-cell foam — air barrier + thermal in one pass
  • §02Every penetration sealed before foam is applied
  • §03Vapor open above grade, vapor closed below
→ next: the crawlspace
The rim joist — R-19+ air-sealed
Zone 04 · Encapsulated · R-19 walls
The crawlspace

Conditioned crawlspaces beat vented crawlspaces in a Zone 7/8 climate. We line the floor, foam the walls, and seal the vents — the space becomes part of the heated home.

  • §0110-mil vapor barrier, sealed to footings
  • §02R-19 closed-cell foam on the perimeter walls
  • §03Sealed vents, conditioned air at low CFM
→ next: the crawlspace
The crawlspace — Encapsulated · R-19 walls
scroll → envelope
crawlspace
Index of services · § 02

Six things we do.

We work the building envelope and nothing else. If it's outside this index — drywall repair, sheetrock taping, framing — we'll refer you to the right trade on the same phone call.

01Closed-cell spray foamRim joist · walls · vaults
02Blown-in celluloseAttic · R-49 to R-60
03Mineral wool & fiberglass battsWalls · sound · fire separation
04Air sealing & weatherizationBlower-door verified
05Crawlspace encapsulation10-mil vapor · R-19 walls
06Home energy surveyWritten report · scoped quote
No. 01 · Recent work

Six homes,
photographed on completion.

A selection of recent envelope work across Anchorage and the Mat-Su valley. Every job photographed the day it was finished, every R-value verified, every air-sealing pass blower-door tested.

Cellulose insulation blown into attic joist bays01
Attic re-blowR-60 celluloseHillside
Closed-cell spray foam at the rim joist seam02
Rim joist seal2″ closed-cell foamSand Lake
Wall cavity dense-packed with cellulose insulation03
Wall retrofitDense-packed celluloseEagle River
Encapsulated crawlspace with sealed vapor barrier04
Crawlspace encap.10-mil + R-19 wallsSpenard
Air sealing of penetrations and top plates05
Air sealingBlower-door verifiedJBER
Pink stone wool batts installed in 2x6 stud bays06
New-construction battR-21 mineral woolDowntown
No. 01 · A note about the work

“We insulate one envelope at a time. Every can light sealed before the cellulose goes in. Every rim joist foamed before the framing is closed up. The job is finished when the blower door reads quiet, not when the truck has somewhere else to be.”

— The crew · Cnd Quality Insulation · Anchorage, AK
What we measure
Pre- and post-blower-door CFM50, R-value depth, air-change-per-hour delta.
What we leave behind
Written scope, R-value verification, photo record of every cavity sealed.
What we won't do
Recommend foam where cellulose would do. Skip an air-sealing pass to save time.
LICENSED CONTRACTOR · ALASKAFULLY INSUREDCLOSED-CELL SPRAY FOAM CERTIFIEDDENSE-PACK CELLULOSE TRAINEDBLOWER-DOOR VERIFIED WORKWRITTEN SCOPE · WRITTEN R-VALUE724 O STREET · ANCHORAGE, AKLICENSED CONTRACTOR · ALASKAFULLY INSUREDCLOSED-CELL SPRAY FOAM CERTIFIEDDENSE-PACK CELLULOSE TRAINEDBLOWER-DOOR VERIFIED WORKWRITTEN SCOPE · WRITTEN R-VALUE724 O STREET · ANCHORAGE, AK
No. 01 · Service area

Where we work.

We run trucks across six service zones. Anchorage proper books same-week; Mat-Su and Hillside on a 48-hour schedule. Call before you book — we'll tell you the exact day we can be there.

AnchoragePrimary service zone99501 · 99503 · 99504 · 99507 · 99508
Eagle River · ChugiakFull coverage99577 · 99567
JBEROn-base clearance available99505 · 99506
Hillside · South AnchorageSame-week scheduling99515 · 99516
Sand Lake · SpenardRetrofit specialty99502 · 99517
Wasilla · Mat-SuBy the truckload, 48-hour notice99654 · 99645

Outside these zones? Call (907) 277-3568 — we'll tell you honestly.

Anchorage Borough · Est. radius 55 mi

Schedule a survey · § 06

Tell us about
the envelope.

We schedule manually. A real human reads every submission and calls back within four business hours. Surveys are free for Anchorage proper, $95 in the Mat-Su (credited toward the job).