HIGH PERFORMANCE I-JOIST ASSEMBLIES · insulation is optimized with the right depth and enclosed by an airtight and vapor open membrane finished with back-vented finish cladding

HIGH PERFORMANCE I-JOIST ASSEMBLIES

HIGH PERFORMANCE I-JOIST ASSEMBLIES Modified Larsen Truss or Double-Stud ConstructionClimate Zones 4 and Up

FOAM FREE ASSEMBLIES:with Pro Clima airtightness and vapor control system

© 2015 475 High Performance Building SupplyDisclaimer: Note that these drawings are diagrammatic and are not intended for direct use. A professional architect, engineer or builder must evaluate and customize per specific job requirements.

Version 1.0, Published June 9, 2015

Drawings and diagrams produced by Justin Uhr and Emily Zinselmeier

Cover images (clockwise from top left): Northern Timbers Construction, Green Generation Building, final two images from EcoCor High Performance Buildings

CONTENTS

Introduction Page 1

Construction Detail Notes Page 3

Construction Detail Key Page 5

Ground Page 7

Walls Page 17

Penetrations Page 31

Roofs Page 43

Materials Description Index Page 53

1 | Construction Details: High Performance I-Joist Assemblies

In our quest for robust, simple and cost effective approaches to high performance building, the I-joist outrigger assembly provides powerful solutions. Similar to a Larsen truss or a modified Larsen truss, the depth of the I-joist is ideal for providing needed depth and support for high insulation values. The I-joists form the ribs of a “parka” that is hung step-by-step on a traditional wood frame construction. The traditional wood frame can be platform or balloon framed with 2x4s wrapped in sheathing. The sheathing serves a traditional structural purpose but is also the primary air barrier and inboard vapor control. Consequently the 2x4 structural zone becomes a very robust and flexible service cavity where wires and pipes may run and outlets placed without penetrating the primary air barrier. The I-joists are screwed onto the box, hung like a cabinet might be, and allow for perfect alignment of same-sized construction elements, with less human error than elements built on-site. As there is sheathing incorporated at the 2x4 box to provide stability, no more sheathing is required and a membrane can be used instead. In heating dominated climates the membrane should be vapor open. The membrane should also be reinforced to support dense-pack cellulose or fiberglass, eg SOLITEX Mento Plus, which also serve as a secondary air barrier.

General characteristics:The special quality of the I-joist outrigger assembly today is the elegant separation of the various functions within the assembly. The services can run unimpeded in the interior structural framing while the sheathing provides a simplified approach to airtightness and vapor control. The insulation is optimized with the right depth and enclosed by an airtight and vapor open membrane finished with back-vented finish cladding. This combination of elements provides very high drying potential and protected control layers.

A brief history of the I-joist outrigger assembly:The I-joist was invented in 1969 as a horizontal floor or pitched roof structural element. It was later repurposed for energy efficient construction as vertical studs in Germany and used by Passive House pioneers such as Manfred Brausem. Building the Smith House in 2003 to Passive House standards, Katrin Klingenberg utilized the I-joist in the German way as a vertical stud also. The Smith House used the I-joist to support the second floor and the roof, with sheathing inboard and outboard of the joists. For the Fairview Passive House projects by Klingenberg’s Eco-Lab, with architecture masters student Dylan Lamar, the I-joists also supported the roof. But the second floor was supported by a 2x4 wood stud wall applied inboard of the I-joists, forming an interior platform for the second floor and an inboard cavity for first floor services.

Then Chris Corson of Ecocor, seeing the Eco-Lab design in his Passive House training, rethought the approach. Chris extended the 2x4 structure to the roof, forming a conventional wood framed wall construction wrapped in sheathing. He then applied the I-joists to the structure with lag screws, literally hanging them off the structure. In Corson’s design, the I-joists serve only to hold the insulation and cladding layers in place. The outboard sheathing was eliminated and replaced with high performance SOLITEX Mento Plus by Pro Clima. Ecocor’s approach has been well publicized in The Journal of Light Construction and at conferences, and has been widely emulated. Today Ecocor has developed a panelized pre-

INTRODUCTION

STRUCTURAL FRAMING

INSULATION PARKA

foursevenfive.com | 2

fabricated approach to the I-joist outrigger assembly, further raising the bar for quality control and affordability.

The details here are not for a panelized system, but for a traditional site-built approach. These details are only meant as a beginning guideline, to be adapted and transformed to meet the needs of your specific projects. Today, high performance professionals from Northern Timbers Construction in Vermont, to Habitat for Humanity Washington DC to Green Generation Building of Yellow Springs Ohio are all successfully implementing variations on this approach. We hope you find it useful.

Why Foam Free?Foam plastic insulation dominates high performance and green construction today, a clear victory of the power of chemical company marketing over common sense. First used in buildings as exterior roof insulation, now it too often metastasizes around our entire building enclosure.

But if we are really trying to make green buildings, trying to make a more sustainable built environment, trying to combat climate change you should be aware that foam fails you in these efforts. Foam fails for many reasons: it’s made of dangerous toxic ingredients, it’s a fire accelerant and fire hazard, it has degrading thermal insulation values, it can excessively shrink, it’s hygrophobic, it’s prone to cracking - ultimately it provides unpredictable and unreliable performance. For detailed explanations, see our ‘Foam Fails’ blog series, where we delve into these issues, backed by cited research.

And foam fails in a way very specific for historic buildings. Historic preservation efforts ask that new installations be reversible. Spray foam, once installed, can be practically impossible to remove entirely - making it essentially irreversible.

Admittedly, this information may cause disorientation – given the near sacrosanct position foam currently holds in the high-performance construction industry - but we can do better. We can do much, much better. And this ebook provides a construction guide on how to do it better in historic masonry retrofits.

Download the DrawingsThe detail drawings shown in this ebook, as well as other 475 Construction Details books, are available in CAD format for easy copying and editing, at foursevenfive.com.

Disclaimer: Note that these drawings are diagrammatic and are not intended for direct use. A professional architect, engineer or builder must evaluate and customize per specific job requirements.

Ventilation - Breathing the Right Air: Lunos e2 and eGO are ductless, through-wall heat recovery ventilation systems that provide optimal ventilation for airtight projects. In contrast with exhaust-only ventilation systems, these balanced systems provide continuous ventilation at low volume for high comfort and superior indoor air quality. Lunos systems are also useful in retrofits to provide balanced and distributed ventilation without the added cost and inconvenience of ductwork in walls and ceilings.

Find out more at foursevenfive.com.


ABOUT PRO CLIMA SYSTEMS:

1. Pro Clima is the world leader in complete air and vapor control systems, optimizing insulation performance, minimizing condensation risk, avoiding structural damage and protecting indoor air quality.

2. Pro Clima systems consist of interior and exterior components: membranes, tapes, caulks, gaskets, primers and accessories.

3. At the interior, INTELLO and DB+ smart vapor retarders provide airtightness with vapor variable permeability, preventing wetting in winter months and allowing drying inward in summer months.

4. At the exterior, SOLITEX membranes provide robust waterproof and airtight control while remaining vapor open and allowing for maximum outward drying.

5. Exterior tapes are also waterproof, airtight and vapor permeable to support optimal performance.

6. Follow all product installation instructions - available on product pages by download at foursevenfive.com

7. If you have any questions regarding Pro Clima system products, contact us at 800-995-6329 or [email protected]

GENERAL NOTES:

1. These drawings are diagramatic and are not intended for direct use. A professional architect, engineer or builder must evaluate and customize per specific job requirements.

2. These notes and details are for cold & mixed climates where space heating requirements dominate.

3. Confirm structural capabilities of sheathing and potential cross-bracing requirements.

4. Outrigger may be of I-joist, modified Larsen truss, or double-stud construction.

WATER SHEDDING NOTES:

1. All components of drainage plane must be weather-lapped to help ensure water drains away from structure.

2. Apply continuous flashing drop edges where drainage plane turns back toward structure.

3. Provide redundant drainage elements: primary roofing or siding with waterproof drainage plane behind.

4. Install foundation water protection and drainage to help ensure ground related moisture problems are avoided.

AIR BARRIER NOTES:

1. Air barrier components are to be connected to form a continuous air tightness control layer around the entire building enclosure.

2. Whole building airtightness and the airtightness of its components should be tested with a blower door – both depressurizing & pressurizing - while the airtightness components are accessible, verifiable & repairable.

3. The main air barrier should be located inboard of the primary insulation layer to ensure conditioned/humid air is segregated from cold building components. (This layer may also be a vapor retarding layer).

4. The secondary air barrier (or wind-tight layer) should be outboard of the primary insulation layer to prevent windwashing of the thermal insulation.

CONSTRUCTION DETAIL NOTES


VAPOR CONTROL NOTES:

1. Vapor profile of assembly should promote drying outward and prevent wetting in winter, while allowing drying inward in summer.

2. Building components outboard of primary insulation layer (sheathing, membranes, siding) should be vapor open to promote outward drying.

3. Siding and roofing components should be back vented to promote outward drying of assembly.

4. Outboard airtight/windtight components should be vapor open to promote outward drying of assembly.

5. Sheathing outboard of primary insulation should be vapor open: exterior grade gypsum board or pine boards.

6. Components inboard of primary insulation should not be vapor closed, to prevent trapping of moisture in assembly.

7. Sheathing inboard of primary insulation may be vapor retarding: OSB or plywood.

8. Airtightness and/or structural components inboard of primary insulation should have vapor variable retarding capability.

9. The greater the moisture damage risk the greater the vapor variable retarding is recommended.

10. A schedule of vapor variable airtight materials:

Least variable

Most variable

11. Moisture damage risk increases with higher levels of insulation and/or outboard vapor retarding components. If unsure of risk level, use WUFI Pro software to analyze the risk. 475 can do a WUFI Pro analysis for you.

THERMAL INSULATION NOTES:

1. Dense pack insulation may be either cellulose or fiberglass.

2. Batt insulation may be: fiberglass, cellulose, sheeps wool, denim or mineral wool.

3. Where moist conditions may prevail below grade mineral wool insulation may be preferable.

4. Exterior fibrous insulation board may be: mineral wool, fiberglass or GUTEX wood fiberboard.

5. Loose fill attic insulation may be cellulose or fiberglass.

6. Inboard rigid floor insulation is GUTEX wood fiberboard.

7. Rigid insulation below floor slab is mineral wool.


OSB: 0.5-2.0 permsDB+ : 0.8-5.5 permsPlywood: 0.5-10 permsINTELLO: 0.17-13.2 perms


SEE MATERIALS DESCRIPTION INDEX (PG. 53) FOR ADDITIONAL INFORMATION

CONSTRUCTION DETAIL KEYKEY / LEGEND:IN RED ‐ INBOARD AIR SEALING COMPONENTS

IN BLUE ‐ OUTBOARD AIR SEALING COMPONENTS

AIR SEALING COMPONENTS:

OTHER BUILDING COMPONENTS:

IN GREYSCALE ‐ OTHER COMPONENTSDRAWING PROFILE LINE

DENSE PACK: CELLULOSE OR FIBERGLAS

SHEATHING OPTIONS: OSB PLYWOOD

MEMBRANE OPTIONS:DB+

INTELLO PLUS SOLITEX MENTO 1000 LIQUID APPLIED MEMBRANES

CAULKING ADHESIVE OPTIONS:CONTEGA HFCONTEGA LINE

TAPE OPTIONS:TESCON VANA

TESCON PROFIL

MEMBRANE OPTIONS:SOLITEX MENTO 1000

SOLITEX MENTO PLUS SOLITEX FRONTA QUATTRO SOLITEX FRONTA HUMIDA

CAULKING ADHESIVE OPTIONS:CONTEGA HF

TAPE OPTIONS:TESCON VANA

TESCON VANA 75, 150 & 200 TESCON PROFIL TESCON NAIDEC TESCON INVIS CONTEGA EXOCONCRETE

RIGID: MINERAL WOOL, FIBERGLASS OR GUTEX, WOOD FIBERBOARDBATT: FIBERGLASS, DENIM, SHEEPS WOOL OR MINERAL WOOL

CONCRETE

INSULATION OPTIONS:

BRICK

STRUCTURE

EXISTING FOUNDATIONS

GUTEX MULTITHERM WOOD FIBER INSULATION BOARD*

GUTEX MULTITHERM WOOD FIBER INSULATION BOARD*

* THIS COMPONENT IS WIND‐TIGHT BUT NOT AIRTIGHT

TAPE: EXTOSEAL FINOC (CAPILLARY BREAK)

GUTEX MULTITHERM WOODFIBER INSULATION BOARD*



The ground connection of a new I-joist outrigger construction can be of any of the typical configurations: slab-on-grade, unconditioned cellar or crawlspace, and conditioned cellar or crawlspace

AIR CONTROL:

The sheathing is the primary air barrier and is typically connected to the sub-floor sheathing or concrete. The secondary air barrier is SOLITEX Mento Plus to the exterior of the insulation, and care must be taken to sequence the build-up of construction to ensure the exterior membrane is fully joined up with the outboard air control layer in the ground assembly.

VAPOR CONTROL:

For slab-on-grade, heavy duty vapor-closed plastic is recommended. At the floor structure above a conditioned crawl space or cellar, the sub-floor sheathing acts as thevapor retarder. Membranes outboard of the insulation or sheathing should be either vapor open or moderately retarding, maintaining the ability of the assembly to dryoutward.

INSULATION:

Below slab-on-grade Roxul mineral wool boards are now available – avoiding the need for EPS or XPS insulation.

CONTINUITY:

Like all high performance construction, continuity of the control layers is critical. This is particularly true at the connections between the parts – in this case, between the wall and the floor.

GROUND: INTRODUCTION


Image: Northern Timbers Construction


UNCONDITIONED CELLAR / CRAWL SPACE1a

PROTECTION BD.

PLYWOOD

1a UNCONDITIONED CELLAR / CRAWL SPACE

JOIST

GRADE

VENTED CELLAR / CRAWL SPACE

VERTICAL 2X3 BATTENS

CLOSED JOINT HORIZONTAL

SIDING

SOLITEX MENTO PLUS AT DENSE PACK OR SOLITEX MENTO 1000 AT BATTS. IF A VAPOR RETARDER IS DESIRED USE DA MEMBRANE WITH BATT INSULATION

JOIST EXTENSIONS AS REQUIRED FOR INSULATION

CONTEGA HF OR CONTEGA LINE CAULK ADHESIVE

GRADE

FOUNDATION WATERPROOFING

PERIMETER DRAINAGE

FULL SCALE / PRINT AT: 1 1/2"=1'-0"

DENSE PACK OR BATT INSULATION

CONCRETE FOUNDATION

SUBFLOOR SHEATHING AIR BARRIER TESCON VANA TAPE AT ALL JOINTS

TESCON VANA 75 (PRIOR TO WALL STUD INSTALLATION ON TOP OF SHEATHING)

VAPOR RETARDING STRUCTURAL SHEATHING & AIR BARRIER TESCON VANA TAPE ALL JOINTS AT OUTBOARD FACE

MEMBRANE AIR & WATER BARRIER:

SOLITEX MENTO PLUS AT DENSE PACK INSULATIONSOLITEX MENTO 1000 AT

BATT INSULATIONTESCON VANA TAPE

AT ALL JOINTS

INSECT SCREEN

TESCON VANA 150 CONNECTING RIM JOIST TO CONCRETE

TAPE RIM JOIST VERT JOINTS WITH TESCON VANA

I‐JOIST WITH DENSE PACK OR BATT

INSULATION

I‐JOIST WITHDENSE PACK OR BATT INSULATION

BATTENS

1X3 BATTENS20" O.C.

TESCON VANA 75

NOTE: FOR OPEN JOINT SIDING USE SOLITEX FRONTA QUATTRO WITH BATT INSULATION

CONTEGA HF

MTL DRIP

EXTOSEAL FINOC

SECTION DETAIL Disclaimer: Note that these drawings are diagrammatic and are not intended for direct use. A professional architect, engineer or builder must evaluate and customize per specific job requirements.


CLOSED JOINT HORIZONTAL SIDING

SOLITEX MENTO PLUS ATDENSE PACK INSULATION,

SOLITEX MENTO 1000 AT BATT INSULATION TESCON

VANA AT ALL JOINTS

TESCON VANA 150 CONNECTING RIM JOIST TO

CONCRETE

TESCON VANA 75

CONTEGA HF ADHESIVE

PLYWOOD

INSECT SCREEN + MTL DRIP

BATTENS + PROTECTION BOARD

CONCRETE FOUNDATION

VENTED CELLAR / CRAWL SPACE


GRADE

PERIMETER DRAINAGE

STRUCTURAL SHEATHING & AIR BARRIER TESCON VANA AT ALL JOINTS ON OUTBOARD FACE

I-JOIST WITH DENSE PACK OR BATT INSULATION

TESCON VANA 75 (PRIOR TO WALL STUD INSTALLATION ON TOP OF SHEATHING)



EXTOSEAL FINOC

JOIST WITH DENSE PACK OR BATT INSULATION - EXTENSIONS AS NEEDED

CONTEGA HF

BATTENS

SOLITEX MENTO PLUS AT DENSE PACK OR SOLITEX MENTO 1000 AT BATTS. IF A VAPOR RETARDER IS DESIRED USE DA MEMBRANE WITH BATT INSULATION

View down at cellar floor connection


CONDITIONED CELLAR - OUTBOARD & INBOARD INSULATION1b


TESCON VANA 150CONNECTING RIM JOIST TO CONCRETE


INSULATION



SIDING

CONDITIONED CELLAR - WITH OUT & INBOARD INSULATION

GRADE

PERIMETER DRAINAGE

RIGID INSULATION

CONCRETE SLAB ON GRADE

CONTEGA HF OR CONTEGA LINEADHESIVE

INTELLO PLUS MEMBRANE AIR BARRIER & VAPOR CONTROL

1b

BATT OR DENSE PACK INSULATION

OUTBOARD RIGID INSULATION

TESCON VANA 75



PROTECTION BD.

CONCRETE FOUNDATION

INSECT SCREEN




AT ALL JOINTS

2X3 BATTENS (20" O.C. AT DENSE PACK)

SERVICE CAVITY

CONTEGA HFCAULKING ADHESIVE

TESCON VANA 75


TESCON VANA


CONTEGA HF

EXTOSEAL FINOC


COMPACTED GRAVEL BED

HEAVY DUTY PLASTIC SHEET AIR & VAPOR BARRIER

MTL DRIP

TESCON PROFILTO JOIST CONNECTION



OUTBOARD RIGID INSULATIOATION


PERIMETER DRAINAGE

SERVICE CAVITY

INTELLO PLUS AIR AND VAPOR CONTROL LAYER

2X3 BATTENS (20” O.C. AT DENSE PACK)

CONTEGA HF OR CONTEGA LINE ADHESIVE

CONCRETE SLAB ON GRADE

RIGID INSULATION



View down at ground connection

View up at first floor connection


I-JOIST DENSE PACK OR BATT INSULAION

SOLITEX MENTO PLUS AT DENSE PACK INSULATION SOLITEX MENTO 1000 AT BATT INSULATION TESCON

VANA TAPE AT ALL JOINTS

TESCON VANA

TESCON VANA 75


PROTECTION BOARD

CONTEGA HF

GRADE

STRUCTURAL SHEATHING AIR BARRIER TESCON VANA TAPE ALL JOINTS AT OUTBOARD FACE

TESCON VANA 75


CONTEGA HF ADHESIVE

TESCON PROFIL TO JOIST

TAPE RIM JOIST VERTS WITH TESCON VANA

EXTOSEAL FINOC

TESCON VANA 150




CONDITIONED CELLAR - INBOARD INSULATION1c

TESCON VANA 150 CONNECTING RIM JOIST TO CONCRETE

CONDITIONED CELLAR - INBOARD INSULATION



SIDING

GRADE

PERIMETER DRAINAGE

INTELLO MEMBRANE AIR BARRIER & VAPOR CONTROL

WATERPROOFING DRAINAGE MATT

GUTEX MULTITHERM

1c


TESCON VANA 75


CONCRETE FOUNDATION


INSECT SCREEN


INSULATION


SOLITEX MENTO PLUS AT DENSE PACK

INSULATIONSOLITEX MENTO 1000AT BATT INSULATION

TESCON VANA TAPE AT ALL JOINTS

PROTECTION BD.

TESCON VANA 75

SERVICE CAVITY

2X3 BATTENS (20" O.C AT DENSE PACK)

CONTEGA HF ORCONTEGA LINE ADHESIVE

CONTEGA HFCAULKING ADHESIVE


TESCON VANA



CONTEGA HF

CONTEGA HF OR CONTEGA LINE

CAULKING ADHESIVE




CONCRETE SLAB

MTL DRIP

TESCON PROFILTO JOIST CONNECTION

EXTOSEAL FINOC



CONCRETE FOUNDATION

CONTEGA HF OR CONTEGA LINE

ADHESIVE


PERIMETER DRAINAGE

SERVICE CAVITY


2X3 BATTENS (20” O.C. AT DENSE PACK)


PLYWOOD TAPED AT SEAMS WITH TESCON VANA

GUTEX MULTITHERM

CONCRETE SLAB








TESCON VANA


TESCON VANA 75

GRADE

PROTECTION BOARD

CONTEGA HF

EXTOSEAL FINOC

STRUCTURAL SHEATHING AIR BARRIER TESCON VANA TAPE ALL JOINTS AT OUTBOARD FACE


CONTEGA HF ADHESIVE

TESCON PROFIL TO JOIST

TAPE RIM JOIST VERTS WITH TESCON VANA

INTELLO PLUS AIR & VAPOR CONTROL LAYER

TESCON VANA



SLAB ON GRADE1d

TESCON VANA TAPE

TERMITE SHIELD

SLAB ON GRADE

I‐JOIST WITHDENSE PACK OR BATT INSULATION



SIDING

VAPOR RETARDING STRUCTURAL SHEATHING & AIR BARRIER TESCON VANA TAPEALL JOINTS AT OUTBOARD FACE

PROTECTION BD.GRADE

WATERPROOFING

1d

MEMBRANE AIR & WATER BARRIER: SOLITEX MENTO PLUS AT DENSE PACK INSULATIONSOLITEX MENTO 1000 AT

BATT INSULATIONTESCON VANA TAPE AT ALL JOINTS

INSECT SCREEN

PLASTIC SHEET AIR & VAPOR BARRIER

CONCRETE SLAB

OPTIONALINSULATION


RIGID INSULATIONSKIRT



CONTEGA HF

GUTEXMULTITHERM


MTL DRIP

DA MEMBRANE CUT INTO A STRIP

TESCON VANA TAPE


SECTION DETAIL



VERTICAL BATTENS

SOLITEX MENTO PLUS ATDENSE PACK INSULATION,

SOLITEX MENTO 1000 AT BATT INSULATION TESCON

VANA AT ALL JOINTS

DA MEMBRANE CUT INTO A STRIP

TESCON VANA


TERMITE SHIELD

GRADE

WATERPROOFING

RIGID INSULATION SKIRT

COMPACTED GRAVEL

STRUCTURAL SHEATHING & AIR BARRIER TESCON VANA AT ALL JOINTS ON OUTBOARD FACE

I-JOIST WITH DENSE PACK OR BATT INSULATION

TESCON VANA TAPE


GUTEX MULTITHERM

CONCRETE SLAB

OPTIONAL INSULATION

PLASTIC SHEET AIR & VAPOR BARRIER



Walls form the heart of this construction approach and provide its distinctive character. In essence, I-joist outrigger wall assemblies are simply conventional 2x4 wood frame walls with thermally broken insulation layers mounted to the exterior. It is this inherent simplicity that has made it a popular choice for high performance construction.

AIR CONTROL:

The sheathing is the primary air barrier with all joints taped with TESCON Vana prior to the I-joist installation. Outboard, SOLITEX Mento Plus membrane forms the secondary air barrier and container for the dense pack insulation. Strapping is placed on top of the membrane to provide both back-vented rainscreen cavities and additional support for the insulation. Depending on the siding direction, counter battens may be needed to ensure a robust cavity space. Care should be taken to avoid puncturing the membrane when installing the siding.

VAPOR CONTROL:

Vapor control in the wall is provided by the sheathing. In cold climates, OSB and plywood are variable vapor retarders - i.e. they prevent moisture loading in the winter months while allowing some inward drying in the summer months. (Note: this sheathing may best be vapor open exterior grade gypsum board in climates with higher cooling and humidity demands).

INSULATION:

Typical insulations include blown-in cellulose or fiberglass. Batt insulation is also possible, though it can be tricky to fit batts to I-joist profiles.

WALLS: INTRODUCTION

Image: EcoCor


INSULATION:

Above grade, we often recommend dense-pack cellulose insulations, a material that actively helps dry moisture out of an assembly. Also possible are dense-pack mineral wool or fiberglass insulations or even batt insulations (surrounded by airtightness batt insulation installations can more readily provide high-performance results).

Freeze-thaw damage, as noted in the opening of this ebook and in the Construction Detail Notes, is a serious concern and needs to be fully examined before installing inboard insulation as illustrated in these pages. However, as we also note the risks can be mitigated and relatively high levels of insulation can be safely achieved. Again, it all depends. So do your homework on that, and given that freeze-thaw concerns are dealt with properly, one concern that remains, with added insulation and colder assembly surfaces, is the potential for mold growth. The best protection against this is robust inboard airtightness and vapor control with INTELLO membranes. Lime plaster can also help.

Thermal bridging of existing structural elements should also be carefully considered, not only for condensation risk but in terms of degrading the effectiveness of high levels of insulation - particularly where there are are existing concrete floors forming a continuous connection with the exterior masonry wall. Consequently, even though you may be able to insulate to very high levels, it may not make sense. Luckily even moderate insulation levels can provide high-levels of performance, even Passive House levels, provided there is good airtightness.


TYPICAL WALL ASSEMBLY2a


INSULATION


STUD STRUCTURE & SERVICE CAVITY WITH OPTIONAL INSULATION

FINISHCLOSED HORIZONTAL

SIDING


BATT INSULATIONTESCON VANA TAPE AT ALL JOINTS(WEATHERLAP ALL COMPONENTS)

SECTION

TYPICAL WALL ASSEMBLY

PLAN

2a


VAPOR RETARDING STRUCTURAL SHEATING & AIR BARRIER TESCON VANA TAPE ALL JOINTS AT OUTBOARD FACE

FINISH



TESCON VANA TAPE



NOTE: FOR RESERVOIR CLADDING SUCH AS BRICK USE SOLITEX FRONTA HUMIDAMEMBRANE. SEE DRAWING 2f



SECTION DETAIL



CLOSED HORIZONTAL SIDING

I-JOIST WITH DENSE PACK OR BATT

INSULATION

SOLITEX MENTO PLUS AT DENSE PACK SOLITEX

MENTO 1000 AT BATT INSULATION TESCON VANA AT ALL JOINTS

(WEATHERLAP ALL COMPONENTS)

TESCON VANA TAPE

STUD STRUCTURE AND SERVICE CAVITY WITH OPTIONAL INSULATION

STRUCTURAL SHEATHING & AIR BARRIER TESCON VANA TAPE ALL JOINTS AT OUTBOARD FACE

TESCON VANA TAPE

FINISH

View down at wall assembly

Images: Northern Timbers Construction


ELEVATIONS2b

ELEVATIONS2bHALF SCALE / PRINT AT: 3/4"=1'-0"

SECTION

PLAN

SECTION

PLAN

ELEVATION

SECTION

PLAN

ELEVATION

FRAMING 24" O.C. WITHHORIZONTAL SIDING

SECTION

PLAN

ELEVATION

ELEVATION

FRAMING 16" O.C. WITHVERTICAL SIDING

FRAMING 16" O.C. WITHHORIZONTAL SIDING

FRAMING 24" O.C. WITHVERTICAL SIDING

COUNTER

BATTEN

S

20" O.C.

FRAMING BATTENS

16" O.C.BATTENS16" O.C.

HORIZONTALSIDINGVERTICAL

SIDING

BATTEN

S20

" O.C.

FRAMING24" O.C.

FLYINGBATTEN

VERTICALSIDING

FRAMING24" O.C.

BATTEN

S20

" O.C.

HORIZONTALSIDING

VERT.BATTEN

VERT.BATTEN

VERT.BATTEN

HOR.BATTEN

HOR.BATTEN

FLYINGBATTEN


ELEVATION DETAIL


Looking up at wall assembly at corner

FRAMING

FLYING BATTENS

VERTICAL SIDING

View down at wall assembly

Image: EcoCor


WALL-FLOOR INTERSECTION2c

WALL-FLOOR INTERSECTION


CLOSED JOINTS HORIZONTAL

SIDING


2c

FINISH


INSULATION




AT ALL JOINTS


TESCON VANA TAPE

OPTIONAL ACOUSTIC INSULATION AT FLOOR




SECTION DETAIL





INSULATION





TESCON VANA TAPE

OPTIONAL ACOUSTIC INSULATION AT FLOOR

FINISH

View down at floor connection

Image: Bleu Nest Builders


CORNER / INTERIOR WALL INTERSECTION - PLANS2d

STRUCTURAL SHEATHING & AIR BARRIER ‐TESCON VANA TAPE ALL JOINTS AT OUTBOARD FACE

OPTIONAL ACOUSTIC INSULATION

INTERIOR WALL

CORNER/INTERIOR WALL INTERSECTION - PLANS2d

STUD STRUCTURE & SERVICE CAVITY / OPTIONAL INSULATION

I‐JOIST WITH DENSE PACK OR BATT INSULATION

HORIZONTAL SIDING


I‐JOIST




AT ALL JOINTS


TESCON VANA

TESCON 75 TAPE



SECTION DETAIL


Views up at exterior wall intersection

HORIZONTAL SIDING




I-JOIST

TESCON VANA TAPE

DENSE PACK OR BATT INSULATION

TESCON VANA 75 TAPE


STRUCTURAL SHEATHING & AIR BARRIER - TESCON VANA TAPE ALL JOINTS AT OUTBOARD FACE

FINISH

View down at inside corner intersection

Images: Northern Timbers Construction


MASONRY RESEVOIR CLADDING ASSEMBLY2e

2e MASONRY RESERVOIR CLADDING ASSEMBLY FULL SCALE / PRINT AT: 1 1/2"=1'-0"


INSULATION



FINISH

SECTION

PLAN


FINISH

TESCON VANA TAPE

TIES


SOLITEX FRONTA HUMIDAMEMBRANE

BRICK


INSULATION

SOLITEX FRONTA HUMIDAMEMBRANE

BRICK

NOTE: PROVIDE MASONRY WEEPS & FLASHING AS REQUIRED FOR PROPER DRAINAGE OF VENT SPACE.




SECTION DETAIL



BRICK


INSULATION

SOLITEX FRONTA HUMIDA MEMBRANE

TESCON VANA TAPE

STUD STRUCTURE AND SERVICE CAVITY WITH OPTIONAL INSULATION

STRUCTURAL SHEATHING & AIR BARRIER TESCON VANA TAPE ALL JOINTS AT OUTBOARD FACE

TESCON VANA TAPE

FINISH

View down at wall


TYPICAL WALL ASSEMBLY WITH EXTERIOR CONTINUOUS INSULATION2f


INSULATION


FINISH

CLOSED HORIZONTAL

SIDING

SECTION

TYPICAL WALL ASSEMBLY WITH EXTERIOR CONTINUOUS INSULATION

PLAN

2g


FINISH

MEMBRANE AIR & WATER BARRIER: SOLITEX MENTO 1000


TESCON VANA TAPE



GUTEX MULTITHERM






SECTION DETAIL


INSULATION


FINISH

CLOSED HORIZONTAL

SIDING

SECTION

TYPICAL WALL ASSEMBLY WITH EXTERIOR CONTINUOUS INSULATION

PLAN

2g


FINISH



TESCON VANA TAPE



GUTEX MULTITHERM









INSULATION

GUTEX MULTITHERM

SOLITEX MENTO 1000 MEMBRANE




TESCON VANA TAPE

FINISH




Every penetration adds a risk of failure to the airtight enclosure, and therefore should be made as rare as possible. If penetrations are unavoidable, they must be fully integrated into the airtight system. I-Joist wall assemblies include built-in service cavities, and as such inherently minimize penetrations through the primary airtight sheathing layer. Whenever possible, keep all services within the interior service cavities.

WINDOWS & DOOR PENETRATIONS:

Windows and doors comprise the biggest and most obviouspenetrations. The window and door units themselves shouldbe completely airtight and very well thermally broken, sothat integration becomes a matter of carefully connectingthe interior (inboard) and exterior (outboard) windowcomponents to the surrounding control layers. At the primary (inboard) airtight layer, the sheathing is best connected to window frames with TESCON Profil split-back tape - optimal for precise inside corners. Outboard, a combination of TESCON Profil and EXTOSEAL Encors is recommended for airtight and watertight connections. TESCON Profil is ideal at window jambs and head. At window sills, EXTOSEAL Encors is an extremely flexible, durable and watertight (self-sealing) tape for continuous sill pans for optimal protection.If plywood boxes are used to transition from wall to window, leaky edges of builder-grade plywood should be taped with TESCON Vana (see photo at top of p. 24).

JOIST PENETRATIONS:

Where joist penetrations are necessary, TESCON Profil tape for inside corners completely surrounding the joist is a typical approach.

DUCT, PIPE & WIRE PENETRATIONS:

Exterior duct, pipe and wire penetrations should be kept to an absolute minimum - if possible limited to core services such as ventilation ducts, water service, etc. Full airtight integration can be assured with flexible ROFLEX EPDM gaskets, or permanent taped connections with EXTOSEAL Magov or TESCON Vana. Foam is the least reliable air seal, and is not recommended.

PENETRATIONS: INTRODUCTION


Image: Habitat for Humanity of Washington DC


WINDOWS STRUCTURE3a

3a


INSULATIONVERTICAL

2X3 BATTENS

HORIZONTAL SIDING



TESCON VANA TAPE


FINISH

MTL DRIP

GUTEX MULTITHERM

TESCON PROFIL TAPE

EXTOSEAL ENCORS

WINDOW PENETRATION

SILL

HEAD/JAMB SIM.

TESCON PROFIL TAPE

TESCON PROFIL TAPE




INSECT SCREEN


TESCON VANA AT ENDGRAIN OF PLYWOOD




SECTION DETAIL


GUTEX MULTITHERM

EXTOSEAL ENCORS SILL TAPE



HORIZONTAL SIDING

TESCON PROFIL TAPE

TESCON VANA AT END GRAIN OF PLYWOOD


FINISH



HORIZONTAL SIDING




TESCON VANA


TESCON PROFIL

VAPOR RETARDING STRUCTURAL SHEATHING AIR BARRIER TESCON VANA TAPE ALL JOINTS AT OUTBOARD FACE


TESCON PROFIL TAPE


ROOF WITH SKYLIGHT3b


SECTION DETAIL3b SKYLIGHTSFULL SCALE / PRINT AT: 1 1/2"=1'-0"

2X3 FURRING 20" O.C. & SERVICE CAVITY WITH OPTIONAL INSULATION

INTELLO PLUS OR DB+ MEMBRANE AIR BARRIER& SMART VAPOR RETARDER

ROOF SHEATHING

FINISH

ROOFING

SHEATHING

ROOFING MEMBRANE

I‐JOIST / DENSE PACK INSULATION

AIRTIGHT &SMART VAPORRETARDER:INTELLO PLUSMEMBRANE

FINISH

CURB HEIGHTS VARY

6" MIN

RIGID INSULATION: GUTEX OR OTHER

LAMILUX SKYLIGHT WITH INTEGRATED INSULATED FRAME

& CURB

ROOF JOIST

FAKROSKYLIGHT

FLATROOF

PITCHEDROOF

TESCON VANATAPE

TESCON PROFIL TAPE

SOLITEX MENTO PLUS

TESCON PROFIL TAPE

TESCON PROFIL TAPE


LAMILUX SKYLIGHT WITH INTEGRATED FRAME & CURB

TESCON PROFIL TAPE

INTELLO PLUS AIRTIGHT MEMBRANE

View down at Lamilux skylight

Two Lamilux FE skylights installed side by side

ROOFING MEMBRANE

RIGID INSULATION:GUTEX INSULATION

SHEATHING

JOIST/ DENSE PACK INSULATION


Roflex 100

Roflex 50

Roflex 20

Kaflex Mono

Kaflex Post

Kaflex Multi


Exterior window with SOLITEX Mento Plus wrapped into rough opening. Taped connections include membrane seams (TESCON Vana) and window frame connections (TESCON Profil).

Applying EXTOSEAL Encors and EXTOSEAL Finoc at floor-to-ceiling window (or door). Finoc is used as a capillary break at wall to floor connections. Encors is a self-sealing sill tape for watertight screw/nail penetrations.


PIPE PENETRATIONS3c

3c PIPE PENETRATIONSHALF SCALE / PRINT AT: 3/4"=1'-0"

ROFLEX 203050

100150200

EXTOSEAL MAGOV

EXTOSEAL MAGOV

TESCON VANA

ROFLEX EPDM GASKET

TESCON VANA

TESCON VANA SERIES OF

SHORT PIECES

(0.6"-1.2" DIA PIPE)(1.2"-2" DIA PIPE)(2"-3.5" DIA PIPE)(4"-4.7" DIA PIPE)(4.7"-6.7" DIA PIPE)(6.7"-8.7" DIA PIPE)

TESCON VANA SERIES OF

SHORT PIECES


SECTION DETAIL


View of pipe penetrations at interior

TESCON VANA TAPE - SERIES OF SHORT PIECES

EXTOSEAL MAGOV

ROFLEX EPDM GASKET

TESCON VANA TAPE

Roflex 50 at roof exterior pipe penetration (left)Roflex 100 at wall exterior pipe penetration containing HVAC lines to be sealed at interior air barrier (right)


WIRE PENETRATIONS3d

3d WIRE PENETRATIONSHALF SCALE / PRINT AT: 3/4"=1'-0"

KAFLEX mono

KAFLEX MONO EPDM GASKET WITH INTEGRAL ADHESIVE BACKING

KAFLEX multi

KAFLEX MULTI EPDM GASKET

TESCON VANA TAPE

TESCON VANA

TESCON VANA APPLY WITH TWO PIECES BACK‐TO‐BACK


SECTION DETAIL


View side of wire penetrations

KAFLEX MONO

KAFLEX MULTI

KAFLEX POST

A service cavity filled with rock wool insulation demon-strates how pipes and wires can be accommodated



ROOFS: INTRODUCTION

An I-Joist Outrigger roof can be paired with virtually any type of high performance roof assembly. In this section we offer several roof types featuring vapor open construction with robust interior airtightness and vapor control.

AIRTIGHTNESS AND VAPOR CONTROL:

As with walls, the primary air and vapor control is inboard of the insulation layer. But instead of using structural sheathing that requires heavy overhead lifting, the INTELLO Plus airtight and smart vapor retarding membrane is applied to the underside of the roof structure. A service cavity is provided inboard of the INTELLO Plus, both to protect the airtight membrane and to help resist the weight of insulation above it. Outboard, we typically recommend back-vented rainscreens for pitched roofs - similar to I-Joist Outrigger walls. At flat roofs, an unvented assembly is more predictable and robust.

CONTINUITY:

Continuity of air and water control layers is extremely important at intersections - such as roof peaks and valleys, as well as edges where the roof connects with wall assemblies. We therefore consider a number of different roof conditions to ensure continuity.


Image: Habitat for Humanity of Washington DC


CATHEDRAL ROOF4a

SECTION


CLOSE JOINT HORIZONTAL

SIDING


INTELLO PLUS OR DB+ MEMBRANEAIR BARRIER& SMART VAPOR RETARDER

VENT SPACE:2X3 BATTENS WITH TESCON NAIDECTAPE CONNECTION TO MEMBRANE

ROOF SHEATHING

4a CATHEDRAL ROOF


INSULATION



FINISH

TESCON VANA TAPE



ROOF JOIST

STUD STRUCTURE& SERVICE CAVITY WITH OPTIONAL INSULATION

TESCON PROFIL TAPE


INSECTSCREEN

MTL DRIP

ROOFING

TESCON VANATAPE

SOFFIT

2X3 BATTENSSHEATHING

ROOFING

SOLITEX MENTO PLUS OR SOLITEX MENTO 1000

TESCON NAIDEC BUTYL TAPE

CROSS-SECTION AT ROOFING

I‐JOIST


INTELLO OR DB+

FINISH



SECTION DETAILSECTION



SIDING




ROOF SHEATHING

4a CATHEDRAL ROOF


INSULATION



FINISH

TESCON VANA TAPE



ROOF JOIST


TESCON PROFIL TAPE


INSECTSCREEN

MTL DRIP

ROOFING

TESCON VANATAPE

SOFFIT


ROOFING




I‐JOIST


INTELLO OR DB+

FINISH



VIEW UP AT ROOF CONNECTION


SECTION



SIDING




ROOF SHEATHING

4a CATHEDRAL ROOF


INSULATION



FINISH

TESCON VANA TAPE



ROOF JOIST


TESCON PROFIL TAPE


INSECTSCREEN

MTL DRIP

ROOFING

TESCON VANATAPE

SOFFIT


ROOFING




I‐JOIST


INTELLO OR DB+

FINISH


ROOF SHEATHING

VENT SPACE: 2X3 BATTENS WITH

TESCON NAIDEC

ROOFING

TESCON VANA TAPE

TESCON PROFIL TAPE

SOLITEX MENTO PLUS AT DENSE

PACK INSULATION SOLITEX MENTO

1000 AT BATT INSULATION

SOFFIT


INSULATION

CLOSE JOINT HORIZONTAL SIDING WITH VERTICAL 2X3

BATTENS

ROOF JOIST

INTELLO PLUS OR DB+ AIR AND VAPOR CONTROL LAYER

2X3 FURRING 20” O.C. & SERVICE CAVITY WITH OPTIONAL INSULATION

TESCON VANA TAPE AT OUTBOARD FACE



FINISH


CONDITIONED ATTIC4b

SECTION

ROOF SHEATHING

ROOF JOIST

4b CONDITIONED ATTIC


MEMBRANE AIR & WATER BARRIER: SOLITEX MENTO PLUS AT DENSE PACK INSULATION

SOLITEX MENTO 1000 AT BATT INSULATIONTESCON VANA TAPE AT

ALL JOINTS (WEATHERLAP ALL COMPONENTS)

FINISH

VERTICAL 2X3 BATTENSCLOSED JOINT HORIZONTAL

SIDING

STUD STRUCTURE& SERVICE CAVITY / OPTIONAL INSULATION

TESCON PROFIL TAPE


TESCON NAIDEC TAPE CONNECTION TO

MEMBRANE





2X3 FURRING 20" O.C / SERVICE CAVITY

EXTEND ROOF CAVITY AS REQUIRED FOR INSULATION

WOOD GUSSETS

SOFFIT

INSECTSCREEN

MTL DRIP

ROOFING TESCON VANA 75

SHEATHING AIR BARRIER TESCON VANA TAPE AT ALL JOINTS



ROOFING






I‐JOIST


INTELLO OR DB+

FINISH



SECTION DETAIL

SECTION

ROOF SHEATHING

ROOF JOIST

4b CONDITIONED ATTIC





FINISH

VERTICAL 2X3 BATTENSCLOSED JOINT HORIZONTAL

SIDING


TESCON PROFIL TAPE



MEMBRANE






EXTEND ROOF CAVITY AS REQUIRED FOR INSULATION

WOOD GUSSETS

SOFFIT

INSECTSCREEN

MTL DRIP

ROOFING TESCON VANA 75

SHEATHING AIR BARRIER TESCON VANA TAPE AT ALL JOINTS



ROOFING






I‐JOIST


INTELLO OR DB+

FINISH



SECTION



SIDING




ROOF SHEATHING

4a CATHEDRAL ROOF


INSULATION



FINISH

TESCON VANA TAPE



ROOF JOIST


TESCON PROFIL TAPE


INSECTSCREEN

MTL DRIP

ROOFING

TESCON VANATAPE

SOFFIT


ROOFING




I‐JOIST


INTELLO OR DB+

FINISH




ROOF SHEATHING


TESCON NAIDEC

ROOFING

TESCON VANA TAPE

TESCON PROFIL TAPE




SOFFIT


INSULATION


BATTENS

WOOD GUSSETSEXTEND ROOF CAVITY AS REQUIRED FOR INSULATION




TESCON VANA 75



FINISH


VENTED ATTIC TRUSS4c

SECTION

I‐JOIST / DENSE PACK

INSUL.

SOLITEX MENTO PLUS AIR WATER BARRIERTESCON VANA TAPE

AT ALL JOINTS


HORIZONTAL SIDING


FINISHINTELLO PLUS ORDB+ MEMBRANE AIR BARRIER & SMART VAPOR RETARDER

4c VENTED ATTIC TRUSS

RAISED HEEL ROOF TRUSS

LOOSE FILL INSULATION

SOFFIT

INSECTSCREEN

MTL DRIP

ROOFING

ROOF SHEATHING

TESCON PROFIL TAPE






MEMBRANE




ROOFING


TRUSS






SECTION DETAIL

SECTION


INSUL.


AT ALL JOINTS


HORIZONTAL SIDING






SOFFIT

INSECTSCREEN

MTL DRIP

ROOFING

ROOF SHEATHING

TESCON PROFIL TAPE






MEMBRANE




ROOFING


TRUSS






SECTION


INSUL.


AT ALL JOINTS


HORIZONTAL SIDING






SOFFIT

INSECTSCREEN

MTL DRIP

ROOFING

ROOF SHEATHING

TESCON PROFIL TAPE






MEMBRANE




ROOFING


TRUSS







ROOF SHEATHING


TESCON NAIDEC

ROOFING

TESCON VANA TAPE

TESCON PROFIL TAPE




SOFFIT


INSULATION


BATTENS







FINISH


UNVENTED FLAT ROOF4d

PITCHED SHEATHING (1/4" TO 12") TESCON VANA TAPE AT ALL JOINTS

ROOF MEMBRANE

PLYWOOD


INSUL.


HORIZONTAL SIDING

NOTE: SEE 475 BLOG POST "UNVENTED FLAT ROOFS: A TECHNICAL DISCUSSION"THE TEN GOLDEN RULES FOR FOAM-FREE FLAT ROOFS

4d UNVENTED FLAT ROOF

SECTION

MTL DRIP






ROOFING

I‐JOIST



INTELLO OR DB+

FINISHINTELLO PLUS OR DB+ MEMBRANE AIR BARRIER& SMART VAPOR RETARDER

2X3 FURRING 16" O.C. / SERVICE CAVITY

I‐JOIST WITH DENSE PACK

FINISH


TAPE UNDERSIDE AND OUTSIDE EDGES OF

SHEATHING AS REQUIRED

SHEATHING


SECTION DETAIL


PITCHED SHEATHING (1/4" TO 12") TESCON VANA TAPE AT ALL JOINTS

ROOF MEMBRANE

PLYWOOD


INSUL.


HORIZONTAL SIDING

NOTE: SEE 475 BLOG POST "UNVENTED FLAT ROOFS: A TECHNICAL DISCUSSION"THE TEN GOLDEN RULES FOR FOAM-FREE FLAT ROOFS

4d UNVENTED FLAT ROOF

SECTION

MTL DRIP






ROOFING

I‐JOIST



INTELLO OR DB+

FINISHINTELLO PLUS OR DB+ MEMBRANE AIR BARRIER& SMART VAPOR RETARDER

2X3 FURRING 16" O.C. / SERVICE CAVITY

I‐JOIST WITH DENSE PACK

FINISH


TAPE UNDERSIDE AND OUTSIDE EDGES OF

SHEATHING AS REQUIRED



ROOF MEMBRANE

TESCON VANA TAPE UNDERSIDE AND OUTSIDE EDGES

OF SHEATHING AS REQUIRED

MTL DRIP

TESCON PROFIL TAPE





INSULATION


BATTENS

PITCHED SHEATHING (1/4” TO 12”) TESCON VANA TAPE AT ALL JOINTS

I-JOIST WITH DENSE PACK





FINISH


DB+ Vapor variable (perm 0.8 to 5.5), interior use only, paper based, airtight membrane.

INTELLO Intelligent vapor retarder for first-class interior air sealing of walls and ceilings. Designed for use with batt insulation. Offers high diffusion tightness in winter (0.17 perm). Maximum diffusion openness in summer (13.20 perm).

SOLITEX MENTO 1000Vapor open housewrap and roof underlayment. Provides superior weather protection which resists 33’ of water column. Remains airtight and actively vapor open with its monolithic TEEE film layer.

SOLITEX FRONTA QUATTROBlack WRB product for under open joint rainscreens, designed with additional UV-exposure resistance. 3-layer reinforced vapor open weather resistant barrier suitable for 6 months of weather exposure.

MATERIALS DESCRIPTION INDEX AIR & VAPOR CONTROL LAYERS

THERMAL CONTROL LAYERS

GUTEX WOOD FIBER BOARD Moisture resistant wood fiberboard and weather resistive barrier for exterior walls under rainscreens and under roofing. High quality single-ply construction, tongue & groove edges at R-3.7 per inch. Available in a variety of thicknesses.

Other Insulation Options• Dense pack cellulose• Dense pack fiberglass• Mineral wool• Rigid fiberglass• Denim batt• Fiberglass batt

INTELLO PLUS Intelligent vapor retarder for first-class interior air sealing of walls and ceilings with an integrated reinforcement layer for use with dense pack insulations. Offers high diffusion tightness in winter (0.17 perm). Maximum diffusion openness in summer (13.20 perm).

SOLITEX MENTO PLUSVapor open housewrap and roof underlayment with a reinforcement layer that is suitable for dense pack insulation. Withstands 33’ water column. Remains air tight and actively vapor open with its monolithic TEEE film layer.

DAYLIGHT SYSTEMS

LAMILUX FE High performance flatroof skylight with a thermal bridge frame to optimize the performance of your Passive House and high performance construction. Available in a variety of types and sizes, including roof exit hatch.

FAKRO FTT-U6 & -U8 Highly-energy efficient triple- and quadruple-pane skylight for pitched roofs. Designed for Passive House and high performance construction with a triple airseal at the natural varnished FSC-pine wood frame.


AIR & VAPOR CONTROL TAPES AND ADHESIVES

PENETRATION AIR SEALING

TESCON VANA All-around interior and exterior vapor open (8 perms) air sealing for permanent airtight taped bonding of membranes, plywood, OSB, concrete and a variety of airtight substrates.

TESCON VANA 75, 100, 150 & 200Tescon Vana tapes comes in a variety of widths. Standard Vana is 2 3/8” (60mm). All numbers following the name refer to the width of the tape in millimeters.

TESCON PROFILSame high performance tape properties as Tescon Vana with a 3 split release paper to make airtight connections and waterproof seals at corners, window frames and beams. Interior and exterior use and vapor open at 8 perms.

CONTEGA EXOWaterproof, very vapor open (38 perms), air-sealing tape to connect window frames and openings to WRBs, concrete, masonry, OSB, or plywood. Three adhesive strips gives the tape the flexibility to be used before and after installation of the window frame.

CONTEGA HFAll-around adhesive caulk for interior and exterior airtight connections between uneven substrates or difficult junctions. Exceptionally high adhesion properties while also remaining elastic. Zero-VOC. Available in 310ml cartridges and 600ml sausage tubes.

CONTEGA LINEAdhesive on a roll for instant flexible air seal adhesion on interior between practically all construction materials, including uneven surfaces. Zero-VOC, and available in 50’ roll lengths.

EXTOSEAL MAGOVHighly elastic adhesive tape for airtight seals around penetrations of all types and sizes. Strong, flexible butyl rubber molds to fit rough and uneven substrates and wrap any shape necessary.

ROFLEX / KAFLEXThese EPDM gaskets create quick, durable, and flexible air sealing for wires (KAFLEX) and pipes (ROFLEX). Available in a variety of sizes and types to fit just about any size circular penetration.

LUNOS e2

A decentralized through-wall ventilation system with a built-in regenerative heat recovery core. Operating in pairs, these fans provide continuous ventilation without the need for duct-work and recover heat at up to 90.6% tested efficiency.

LUNOS eGO

All-in-one through-wall room ventilation system with a built-in regenerative heat recovery core. Designed for bathrooms and small spaces without the need for ductwork. Recovers heat at 85% tested efficiency.

VENTILATION

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Documents

HIGH PERFORMANCE I-JOIST ASSEMBLIES · insulation is optimized with the right depth and enclosed by an airtight and vapor open membrane finished with back-vented finish cladding