ROUGH IN FOR UNDER-SLAB VENTILATION

MISE EN PLACE DE CANALISATIONS A DES FINS DE VENTILATION SOUS UNE DALLE

English Abstract

Rough-in for under slab ventilation allows to connect a space under the slab
of grade of building
structure which contain layer of gravel under the concrete slab with above the
ground outside air
utilizing 100 mm in diameter flexible solid pipe (# 1 on attached drawing).
This connection will
make possible to ventilate soil gases accumulated in the space under the slab.
Inserted inside of
the above noted pipe 50 mm in diameter flexible solid pipe will allow to
inject air for drying out
soil located under the slab or pump out collected water.

Claims

CLAIM
Rough-in for under-slab ventilation, comprising:
a flexible 100 mm in diameter solid pipe for connecting under-slab on grade
space of the
building structure with the above ground air.
a 50 mm in diameter flexible solid pipe inserted inside of the above noted
flexible 100 mm in
diameter pipe for possibility to inject air to the under-slab on grade space
for ventilation
purposes or pumping out water collected under the building structure slab;
a filter fabric wrapping the end of flexible 100 mm in diameter pipe which is
located under the
slab on grade for the purpose of prevention og pipes to be plagued.

Description

CA 02808969 2013-03-01
innstry Industrie A/MiJ Y/M/D
Canaca Canada
Calgary, February 28, 2013
I II 1,
IR! 2013/03/01
063- 13
CIPO OPIC
B001698422
Invention Tile:
Rough-in for under-slab ventilation.
This rough-in is to provide possibility to ventilate soil gases from the under-
slab space in
new or existing structures with concrete slab on grade.
It consists of (numbers are referred to those on attached drawing # 1):
1. Flexible solid plastic pipe of 100 mm diameter (for ventilating soil
gases with or
without on-line fan )
2. Flexible solid plastic pipe of 50 mm diameter inserted inside of 100 mm
pipe.
(to allow for pumping out water which might be collected under the slab or
injecting air into
the under-slab are for drying purposes)
3. Filter fabric to prevent pipe 1 and/or 2 from flogging by soil fines.