Effectively protects delicate
waterproofing systems on vertical and horizontal surfaces.
SEALTIGHT PROTECTION COURSE products are tough, durable, lightweight panels
specifically designed to protect delicate waterproofing materials from damage by
normal construction traffic, movement of adjacent substrate or backfilling.
SEALTIGHT PROTECTION COURSE is a multi-ply semi-rigid core composed
of a mineral-fortified asphaltic core formed between two outside layers of
asphalt-impregnated reinforced mats, manufactured in accordance with ASTM D
When properly applied by personnel trained in good waterproofing techniques,
SEALTIGHT PROTECTION COURSE will absorb the impact of aggregate shock and normal
jobsite foot traffic. It also protects the membrane waterproofing from
penetration by sharp aggregate during backfilling and later settlement.
SEALTIGHT PROTECTION COURSE is available in three types; PC-1, Light Duty; PC-2,
Standard Duty and PC-3, Heavy Duty. All three types are economical and
convenient to use.
SEALTIGHT PROTECTION COURSE is used in between-slab construction,
such as plaza decks, roof terraces, promenade decks, pedestrian concourses,
tunnels, floors of bathrooms, showers, kitchens and mechanical rooms, parking
garage decks, planter boxes, reflective pools and foundation walls.
SEALTIGHT PROTECTION COURSE is compatible with most currently popular
dampproofing and waterproofing materials.
Features and Benefits
|Tough, durable and lightweight, panels are easily
handled, quickly installed
|Full width fiberglass matting improves flexural
|Highly resistant to chemical action
|Performance is equally effective in above or
|Unique dual-facing offers compatibility with most
currently popular waterproofing materials
|Economical and convenient to use|
NOTE: Prior to application, consult the
waterproofing manufacturer to determine whether the polyethylene film facing on
one side, or the asphalt-impregnated reinforced mat on the other side of
SEALTIGHT PROTECTION COURSE is approved as "compatible" to the
specific waterproofing product being protected.
SEALTIGHT PROTECTION COURSE is installed to form a continuous protective layer
over the membrane waterproofing. The sheets can be easily cut with a roofer's
knife for fitting at protrusions.
SURFACE CONDITION: The waterproofing membrane must be free of sharp projections,
dirt and dust. If water testing is desired, it should be made prior to placing
the protection course. Note: Protection course should be applied at the end of
each day's waterproofing to both horizontal and vertical surfaces.
HORIZONTAL SURFACES: PROTECTION COURSE should be installed over the
waterproofing membrane as soon as permissible by the membrane applicator or
manufacturer. PROTECTION COURSE sheets should be butted together and cut to fit
all intersecting surfaces and protrusions. If desired, joints may be covered
with SEALTIGHT Detail Strip or roofer's glass reinforced tape embedded in hot
asphalt as a secondary waterproofing system. (See Point 2 under
VERTICAL SURFACES: For dampproofed and/or waterproofed vertical walls to receive
backfill, the PROTECTION COURSE should be butt-jointed and, if necessary,
temporarily held in place while backfilling.
BACKFILLING: Backfilling against vertical walls should be done immediately using
care and caution to avoid damaging the waterproofing application. Backfill
material should not be dropped against the PROTECTION COURSE in such a manner
that it could drag the sheet down as the backfill drops. For horizontal
applications, the waterproofing and PROTECTION COURSE should be installed just
prior to the installation of the wearing surface.
4' x 8' (1.22m x 2.44m) panels
Limitations / Precautions
1. Where PROTECTION COURSE is adhered to waterproofing membrane,
use the adhesive recommended by the membrane manufacturer.
2. Where taped joints are desired with tape set in hot asphalt, consult membrane
3. PROTECTION COURSE is shipped on pallets with the polyethylene anti-stick
sheet on the top or exposed side. PROTECTION COURSE should be stored on the
pallets and placed on a level surface.
4. CAUTION: Do not apply the Protection Course over liquid applied waterproofing
membranes containing volatile solvents until all of the solvent has evaporated.
Consult membrane manufacturer for specific application details prior to placing
the Protection Course. Read and follow application information and precautions.
ASTM D 6506 Protection Board
A & B
||222 N (50 lbf)
|312 N (70 lbf)
|365 N (82 lbf) minimum
A & B
||1.3 to 1.8mm
(0.050 to 0.070 in.)
|2.4 to 3.9mm
(0.095 to 0.155 in.)
|5.6 to 7.1mm
(0.22 to 0.28 in.)
A & B
|Asphalt, % by weight
|Asphalt, % by weight
|Resistance to Decay
A & B
||All Types - Meets puncture requirements
after completion of test
PC-1 Light Duty
PC-2 Standard Duty
PC-3 Heavy Duty
62.5 mil-1/16' (1.59mm)
125 mil-1/8' (3.18mm)
250 mil-1/4' (6.35mm)
This material last updated December, 2001.
W. R. MEADOWS, INC. warrants that, at the time and place
we make shipment, our materials will be of good quality and will conform with
our published specifications in force on the date of acceptance of the order.
THE FOREGOING WARRANTY SHALL BE EXCLUSIVE AND IN LIEU OF ANY OTHER WARRANTY,
EXPRESS OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE AND ALL OTHER WARRANTIES OTHERWISE ARISING BY
OPERATION OF LAW, COURSE OF DEALING, CUSTOM OF TRADE OR OTHERWISE. As the
exclusive remedy for breach of this Warranty, we will replace defective
materials, provided, however, that the buyer examine the materials when received
and promptly notify us in writing of any defect before the materials are used or
incorporated into a structure. Three (3) months after W. R. MEADOWS, INC. has
shipped the materials, all our Warranty and other duties with respect to the
quality of the materials delivered shall conclusively be presumed to have been
satisfied, all liability therefore terminates, and no action for breach of any
such duties may thereafter be commenced. W. R. MEADOWS, INC. shall in no event
be liable for consequential damages. Unless otherwise agreed to in writing, no
warranty is made with respect to materials not manufactured by W. R. MEADOWS,
INC. We cannot warranty or in any way guarantee any particular method of use or
application of the performance of materials under any particular condition.
Neither this Warranty nor our liability may be extended or amended by our
salesmen, distributors or representatives, or by our distributor's
representatives, or by any sales information or drawings.