The ultimate uncoupling underlayment for residential and commercial Projects
Superior alternative to backer board type underlayment
Superior alternative to rolled uncoupling products (UNI-Mat PRO; DITRA
Ideal for wood substrates where deflection may be a problem
The only underlayment that can reinforce wood substrates
Ideal for stone and large format tile installations
Ideal for high/heavy traffic commercial installations
What is PERMAT?
1 Panel – 6.5 sq. ft. (2′ x 3.2″) – weighs approx. 1 lb
Two layers mesh – top layer of extruded fiberglass has overhang for connecting panels
Only 1/8″ thick
PERMAT – Physical Properties
30 panels / carton – 195 sq. ft. / carton – weighs only 32 lbs
Install with thinset same as UNI-Mat PRO
Suitable for Residential & Commercial; wood & cement substrates; interiors only
How is PERMAT similar to rolled uncoupling products
Light weight, labor savings, easy to install compared to backer board/cement board
1. Easy to carry – 30 lbs vs. 362 lbs
2. Cut with utility knife – no dust
3. No screws or nails – installs with thinset
4. No taping of seams
Provides crack isolation (uncoupling) protection unlike backer board type products
1. Fabric on underside releases with lateral substrate movement
2. Span controls joints in cement substrates (but not expansion joints)
3. Compare to restrictions on other crack isolation products
How is PERMAT superior to rolled uncoupling products
Increases substrate support and reduces deflection
Superior point load support
Higher compressive strength
Higher shear strength
Easier to install
Detail
Increases substrate support/reduces deflection
1. Tile
Approved over 1 layer of 3/4″ EGP on 24″ o.c. joist spacing
TCA recommends two layers of plywood over 24″ o.c. joists
PERMAT replaces second layer of plywood
Robinson Floor Test rated -Heavy Industrial
2 Stone
Approved over 1 layer 3/4″ EGP on 19.2″ o.c. joist spacing
Stiffens substrate to meet more rigid L/720 deflection
(vs L/360 for standard tile)
Schluter Ditra requires 2 layers of plywood under stone
3. Large format tile
Provides flatter plane for setting tile
Stiffens substrate
Fewer grout joints in the tiled surface allow for less movement/deflection
Superior point load support
95% higher than standard roll uncoupling products
No voids – no hollow spots to collapse under point loads
Ideal for commercial applications
Suitable for tiles smaller than 2″ x 2″
Stone installations – supports 100% of tile
Higher compressive strength
50% higher than standard roll uncoupling products
Ideal for commercial applications (auto showrooms, retail, hospitality, grocery stores)
Higher shear strength
7 X higher than standard roll uncoupling products
Easier to install
More tolerant of unwelcome traffic prior to tile installation
More flexibility in timing mat and tile installation
Less sensitive to thinset cure times when working on mat
Modified thinset (A118.4) recommended with porcelain tile
Complies with industry standards
Schluter requires non-modified thinset when installing porcelain on DITRA
Eliminates conflicts between thinset and underlayment warranty
Applications – Residential
New home construction
24″ o.c. joist spacing with 1 layer 3/4″ plywood/OSB
Eliminates second layer of plywood
Stone installations
Stiffens floor to meet more rigid L/720 requirement
Provides higher point load and support under 100% of installation
Tiles smaller than 2″ x 2″
Anywhere where substrate support is questionable
* Audi showroom, Piepenstock Germany
Anywhere crack isolation is required on cement substrates
Can alternative crack isolation products span control joints?
Anywhere exposed to high point loads and heavy traffic
Anywhere DITRA is specified
Upscale benefits of heavy-duty/premium uncoupling system
Installation
Please see PERMAT installation video and PERMAT printed installation instructions for detailed instruction
Normal floor prep
Align panels so top mesh overhang covers edge of adjacent panel side without overhang. Seams in adjoining rows must be offset a minimum of 3″ from seam in prior row
As with the tile covering, a 1/4″ gap must be maintained where PERMAT abuts vertical surfaces, thresholds and other flooring surfaces (i.e., wood)
Apply more a liquid than normal mix to substrate w/ 1/4″ x 1/4″ U-notched trowel
Press PERMAT in to thinset with flat side of trowel (fabric on underside of PERMAT needs to be saturated with thinset)
Key normal mix of thinset into cavities on top of PERMAT
Trowel thinset and set tile as normal to top surface of PERMAT
Allow normal cure time as recommended by grout manufacturer before grouting
A Word about Movement Joints
Movement joints are required in tile and stone surfaces
Importance of movement joints: Per the NTCA and TCA, most claims for failures are for installations with insufficient or no movement joints. Here are the minimum guidelines per 2007 TCA Handbook for installation of ceramic tile:
Interior: 20-25′ both directions
Interior exposed to sunlight: 8-12’ both directions
Exterior: 8′-12′ both directions
Perimeter and where tile abuts vertical surfaces
These requirements apply regardless of type of underlayment used in the installation
Summary Residential
Reduces deflection in wood substrates (I.e. 24 o.c. joist spacing)
Stone installations – increases substrates support
Large format tile – provides flatter plane and stiffer substrates
Only 1/8″ thick – Suitable for tiles 2″ x 2″ and smaller
Weighs only 1.06 lbs. per panel (6.5 sq. ft.)
Latex modified thinset recommended for porcelain tile installation
Summary Commercial
Crack isolation/uncoupling protection
Superior point load support
Higher shear strength
Higher compression strength
Suitable for tiles under 2″ x 2″
Easier to install
Ideal for floors exposed to heavy traffic (auto showrooms, airports, retail, nursing homes, hospitality)
More links about Blanke Corporation
Quick Pitch with Blanke Aqua Shield – All about Blanke Permat – Blanke SecurMat Installation – Blanke SECURMAT Overview – Blanke Permat Installation – Blanke Permat Warranty – Blanke UNI-Mat PRO vs. Schluter Ditra
The post All about Blanke Permat first appeared on Flooring Supply Shop Blog.
Can permit be installed over 3/4″ fir bead board on floor?
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