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IKO fiberboard sheathing (C) InspectApedia.com DavidIKO Fiberboard Identification

IKO Building Wall & Roof Sheathing,
Insulating Board Identification

  • POST a QUESTION or COMMENT about IKO fiberboard building sheathing: how to identify IKO fiberboard products, fiberboard uses, and the question: does IKO fiberboard contain asbestos?

IKO fiberboard insulating sheathing identification guide:

In this article series we provide fiberboard product names and we describe the components, properties, and applications of various fiberboard, hardboard, and insulating board or sound deadening board products.

We also answer questions such as do IKO fiberboard and insulating board products contain asbestos? IKO fiberboard water resistance, IKO fiberboard recycling.

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Guide to IKO Fiberboard & Insulating Sheathing Board & Plasterboard Products

IKO fiberboard sheathing on a 1980 home on Vancouver Island - (C) InspectApedia.com DavidLow-density IKO fiberboard panels and products trace their origin in the U.S. to Azel Storrs Lyman's 1858 patent for separating the fiber of wood and for the manufacture of paper and other purposes. (Jester 2014).

W.E. Hale's patent for wallboard that described using fiberboard in construction (Hale 1870) and Cobb's patent for using a soft board made of straw in place of wood lath as a plaster base (Cobb 1871), expanding the use of IKO and similar fiberboard products.

Photos of IKO fiberboard sheathing are courtesy of InspectApedia reader David and are discussed in more detail at the reader Q&A section later on this page.

Identify IKO Fiberboard Sheathing Products

Photos: IKO fiberboard insulating sheathing on a 1980 home on Vancouver Island.

IKO produces and has produced a range of building insulating sheathing products of various materials, including fiberboard insulating sheathing stamped with a gray-white IKO logo as shown in photos here, courtesy of InspectApedia reader David in 2023.

IKO describes their fiberboard as follows:

Fiberboard: Insulation composed principally of cellulose fibers usually derived from paper, paperboard stock, or wood, with or without binders. See also insulation. - IKO Corporate Profile, cited below.

Insulation: A material used as part of a building enclosure to retard the flow of heat through the enclosure. It is made from a variety of organic and inorganic fibers and foams, e.g., expanded/extruded polystyrene, glass fiber, cellular glass, phenolic foam, perlite, polyurethane foam, polyisocyanurate foam.

It can be loose-filled, or used in batt, board or block form. See also roof insulation, board insulation.

IKO's current insulating board most-used in roofing and wall construction is their Protectoboard described as

Protectoboard is a versatile asphaltic cover board composed of a mineral-fortified asphalt core between two layers of high-strength reinforcing fiberglass mat.

While Protectoboard can be used as an overlay board in a conventional roof system, it also can be applied as a protection board in the waterproofing of bridge and podium decks, vertical walls and parking garages.

The product is available in a wide variety of lengths and thicknesses, including 3 mm (1/8″), 4.8 mm (3/16″) and 6 mm (1/4”). - https://www.iko.com/comm/product/protectoboard/

IKO Insulating Sheathing References & Research

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Reader Comments, Questions & Answers About The Article Above

Below you will find questions and answers previously posted on this page at its page bottom reader comment box.

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs

On 2023-02-21 by David - is IKO fiberboard the same as Donnacona? Is there an asbestos worry?

We're currently ripping stucco off of a house on Vancouver Island which was built around 1980.

Today we uncovered this IKO product. Is it the same as Donnacona? Is there an asbestos concern? Thank you.

IKO fiberboard sheathing on a 1980 home on Vancouver Island - (C) InspectApedia.com David

On 2023-02-21 by InspectApedia Editor (mod)

@David,

That looks like a wood fiber based sheathing which typically does not contain asbestos.

But we don't have much information on an IKO sheathing product for use as you describe but you'll (now) find what we've located along with links to some PDF downloads describing IKO's sheathing products used on building walls and roofs.

That doesn't mean that someone didn't use a product for a purpose other than intended by the manufacturer.

Can you post a photo of the IKO markings that you found? And perhaps a photo of the project from a further distance so we can see what the overall project looks like?

On 2023-02-27 by David - Photos of IKO Fiberboard Sheathing on a 1980 Vancouver Island Home

IKO fiberboard sheathing on a 1980 home on Vancouver Island - (C) InspectApedia.com David

View from further back. Thank you.

IKO fiberboard sheathing (C) InspectApedia.com David

Another image

IKO fiberboard sheathing on a 1980 home on Vancouver Island - (C) InspectApedia.com David

Sorry about delay in responding.

IKO fiberboard sheathing on a 1980 home on Vancouver Island - (C) InspectApedia.com David

On 2023-02-27 by InspectApedia Editor (mod)

@David,

Those photos are nice illustrations of 1980s IKO fiberboard insulating sheathing, typically a plant fiber product with an asphalt-based coating. We're researching further but to date we've found no indication that asbestos was used in that product.

For completeness you may want to read FIBERBOARD SHEATHING ASBESTOS CONTENT

https://inspectapedia.com/structure/Fiberboard-Sheathing-Asbestos.php

Yes your IKO sheathing is similar to older Donnaconna board that was manufactured in Canada and discussed above on this page.

Thanks for the question and photos - we'll welcome any further comment or questions - give me an hour or so to add your photos to the discussion above.

We'll add your photos and move this discussion into the page above at

IDENTIFY IKO Fiberboard & Other Insulating Sheathing

https://inspectapedia.com/structure/Fiberboard-Sheathing-Identification-Key.php#IKO

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