WHAT IS A VENTILATED CRAWL SPACE ? The ventilated crawl space in house building is an air space built under the ground floor with insulating function, specifically aimed at preventing water infiltrations and upward dampness spreading. Not long ago, the traditional ventilated crawl space was made of loose dry stones and provided with ventilation grooves or better with hollow tiles laid on low walls placed at a short distance one from the other. The high cost of the traditional crawl space did not allow extensive use (actually it was used for particular spaces or where the building costs made it possible). NOWADAYS with the MODULO system the builders’ privilege, but a requirement for a fast developing sector. CRAWL SPACE is no longer a few The MODULO is a disposable formwork making the construction of crawl spaces and interspaces possible in a quick and safe way. Thanks to its U shaped fitting joint it enables a worker to lay about 100 square metres of it per hour, consequently
reducing labour costs by at least 80%. Moreover, the resulting surface is dry and can be walked on, thus ensuring greater safety in the building yard during laying and concrete casting phases. The low cost of laying work and of the modular formwork itself has made this product a valid substitute for materials such as gravel, which have a lower price, but definitely higher labour costs. The shape of the MODULO formwork has been projected to obtain very good ventilation and the minimum resistance to the air in the element intrados, provided the interspace is connected through pipes with the outside of the building. The in-coming pipes are to be preferably placed north and at ground level, the out-going ones south and driven up to the roof. This arrangement eliminates dampness and possible concentration of RADON gas. If compared to the traditional CRAWL SPACE, the MODULO creates a reinforced concrete structure that makes its use possible in industrial building yards where loads are highe
r than in private building and where having an aired interspace for placing pipes and installations has proved really advantageous. INSULATING MATERIAL FLOOR CONCRETE COPE STEAM BARRIER TRADITIONAL CRAWL SPACE (WALLS AND HOLLOW TILES) LEAN CONCRETE GROUND VENTILATED CRAWL SPACE Built in the traditional way WORK STAGES FOR PRIVATE USE OVERLOADS 1/ Ground digging and surface flattening 2/ Concrete casting for underground foundation (lean concrete) R’CK 150, thickness depending on required overload (see chart) 3/ Placing of MODULO workforms and fitting FERMAGETTO 4/ Laying of electro-soldered net ø 6 - 20x20 over the MODULO 5/ Filling up of the Modulo workforms with R’CK 300 concrete (slab thickness depending on the required load) E S N O FLOOR FERMAGETTO INSULATING MATERIAL AIR GROUND LEAN CONCRETE The new CRAWL SPACE MODULO CONCRETE LAYER FERMAGETTO CONTRACT SPECIFICATIONS A perfectly ventilated crawl space, insulated from the underlying ground, made of concrete
and mudular disposable plastic formworks, type MODULO Geoplast Srl. A) Floor rough made of rolled scree with variable thickness as per chart B) Layer of lean concrete with variable thickness as per chart C) At the builder’s discretion, before placing the formworks, holes and/or chases can be made for the passage of pipes or of all sorts of installations. D) The floor will be ventilated by making 80/120 mm diameter holes on the outside walls, one every 3.50/4.00 metres and possibly provided with connecting PVC pipes and external stainless steel grates equipped with anti-insect plastic nets. For a better ventilation the holes will have to be made at a higher level on the south, warmer side of the building rather than the north, colder side. In case there are parts of crawl space inside the foundation beams these will have to be connected with the outside or peri-meter portions. E) The Modulo will be laid over a lean concrete slab, previously prepared and with a suitable thickness (see
specific charts). The formworks must be arranged in rows from right to left and from up to down always keeping the printed arrow upwards. F) Placing of Fermagetto EXTENSION and FERMAGETTO made of polystyrene, preventing concrete from penetrating into the crawl space and facilitating the construction of external kerbs and foundation beams during the casting phase. G) Laying of weight distributing reinforcement with a 6 mm minimum diameter and with a 20 x 20 mesh, necessary to stand stress. H) Filling up of the formworks and casting of the top layer with concrete (Resistance class R’CK 250 Kg/cm2 and with 3 cm minimum thickness (see chart ). Work executed with or without the help of pumps. I) Vibration phase LOAD CHART FOR MODULO H 3/6 TYPE OF LOAD Overload Kg/sq.m. Cap thickness cm Pressure on the floor Kg/cm2 Bar diameter mm Net mesh cm x cm Terraces 250 1,5 0,43 3 10 x 10 Houses 400 2 0,69 3 10 x 10 Offices 700 3 1,22 6 20 x 20 Garages Ind.bdgs 1.500 4 2,
60 6 20 x 20 3.000 6 5,21 6 20 x 20 CONTRACT SPECIFICATIONS LOAD CHART FOR MODULO H 9 Overload Kg/sq.m. 1.000 Cap thickness cm 4 Coarse gravel thickness cm Pressure on the ground Kg/cm2 0 TYPE OF LOAD 0 2,27 5 0 1,04 10 0 0,59 Lean concrete thickness cm Pressure on the coarse gravel Kg/cm2 10 0 0 3,12 10 0 1,78 6 20 x 20 6 20 x 20 6,80 5 Net mesh cm x cm 0,38 0 5 CIVIL Bar diameter mm 1,04 3.000 5 3,12 10 1,15 10.000 7 10 5,95 25 1,21 6 20 x 20 20.000 10 15 7,69 30 1,62 8 20 x 20 30.000 15 15 11,54 35 2,05 8 20 x 20 Coarse gravel thickness cm Pressure on the ground Kg/cm2 Bar diameter mm Net mesh cm x cm 0 INDUSTRIAL 5 0 2,06 5 0 0,56 10 0 0,26 6 20 x 20 6 20 x 20 LOAD CHART FOR MODULO H 13/15/17/20/27/30/35/40 TYPE OF LOAD Overload Kg/sq.m. 1.000 Cap thickness cm 3 Lean concrete thickness cm 5 Pressure on the coarse gravel Kg/cm2 10 0,15 0 CIVIL 0,56 0 6,19 5 0 1,70 10 0 0,
78 3.000 5 1,70 10 0,45 10.000 5 10 5,66 25 0,49 6 20 x 20 20.000 10 15 2,97 25 0,60 6 20 x 20 30.000 15 15 4,46 25 0,90 8 20 x 20 Coarse gravel thickness cm Pressure on the ground Kg/cm2 Bar diameter mm Net mesh cm x cm 0 INDUSTRIAL 4 0 3,40 5 0 1,56 10 0 0,89 6 20 x 20 6 20 x 20 LOAD CHART FOR MODULO H 45/50/55/60/65/70 TYPE OF LOAD Overload Kg/sq.m. 1.500 Cap thickness cm 5 Lean concrete thickness cm Pressure on the coarse gravel Kg/cm2 10 0,58 0 0 6,80 5 0 3,12 10 0 1,78 5 CIVIL 1,56 3.000 5 INDUSTRIAL 8 3,12 10 1,15 20.000 10 15 7,69 30 1,62 8 20 x 20 30.000 15 15 11,54 35 2,05 8 20 x 20 CONTRACT SPECIFICATIONS SPECIFICATIONS OF MODULO PILLARS ARTICLE Pillar side cm Pillar surface cm2 Number of MODULO pillars Number of MODULOS for sq.m. Number of pillars for sq.m. Modulo H 3 Modulo H 6 2 4 36 4 144 3 9 25 4 100 Modulo H 9 Modulo H 13 Modulo H 15 6 36 4 3 12 14 196
1 4 4 15 225 1 4 4 Modulo H 17 Modulo H 20 Modulo H 27 Modulo H 30 Modulo H 35 Modulo H 40 13 169 1 4 4 14 196 1 4 4 12 144 1 4 4 12 144 1 4 4 12 144 1 4 4 12 144 1 4 4 Modulo H 45 Modulo H 50 16 256 1 2 2 16 256 1 2 2 Modulo H 55 Modulo H 60 15 225 1 2 2 15 225 1 2 2 Modulo H 65 Modulo H 70 14 196 1 2 2 14 196 1 2 2 50 / 58 / 71 50 / 58 / 71 h H L 50 / 58 / 71 MODULO’S CONCRETE CONSUMPTION AND PACKING SIZES ARTICLE dim. cm Concrete consumption for the top layer Modulo 50x50 H 3 Modulo 50x50 H 6 Modulo 58x58 H 9 Modulo 50x50 H 13 Modulo 50x50 H 15 Modulo 50x50 H 17 Modulo 50x50 H 20 Modulo 50x50 H 27 Modulo 50x50 H 30 Modulo 50x50 H 35 m3 0,004xsq.m. 2,1 5,5 m3 0,009xsq.m. 4,5 5,4 m3 0,010xsq.m. 7,5 20,5 m3 0,028xsq.m. 7 m3 0,030xsq.m. Modulo 50x50 H 40 Modulo 71x71 H 45 Modulo 71x71 H 50 Modulo 71x71 H 55 Modulo 71x71 H 60 Modulo 71x71 H 65 Modulo 71x71 H 70 no. pieces per pallet sq.m. per p
allet 110x110x230 720 180 110x110x230 720 180 120x120x230 360 120 28 110x110x230 300 75 9,5 26,4 110x110x230 300 75 m3 0,035xsq.m. 11,5 30 110x110x230 300 75 m 0,037xsq.m. 14,5 28 110x110x230 300 75 m3 0,040xsq.m. 21 34 110x110x230 300 75 m3 0,045xsq.m. 24,5 31,7 110x110x230 300 75 m3 0,052xsq.m. 30 35 110x110x230 300 75 m3 0,056xsq.m. 34 36 110x110x230 300 75 m3 0,064xsq.m. 36 48 145x145x230 200 100 m 0,080xsq.m. 41 48 145x145x230 200 100 m3 0,073xsq.m. 46 50 145x145x230 200 100 m3 0,085xsq.m. 51 50,9 145x145x230 200 100 m3 0,077xsq.m. 56 53 145x145x230 200 100 m3 0,090xsq.m. 61 53 145x145x230 200 100 3 3 h cm clean span L cm Package cm PRICE LIST A) Disposable formworks, type Modulo by Geoplast srl, made of atoxic,highly resistant, recycled and fully recyclable polypropylene. These modular pieces, if correctly coupled, can form load bearing pillars with a minimum support base of 135 cm2.
Each of them is ... X ... cm on the plan and ... cm in height and has a concave cap with stiffners, specifically made to increase load capacity. The cap has flat reliefs among which the slab reinforcement can be laid and concrete can be poured. (Actually the flat reliefs mark the maximum height the cast can reach). The MODULO is dry laid and used for making ventilated floors; it is certified by an authorized Institute and delivered directly to the building yard. PRICE LIST FOR MODULO ARTICLE PRICE Modulo H 3 cm /sq.m. Modulo H 6 cm /sq.m. Modulo H 9 cm /sq.m. Modulo H 13 cm /sq.m. Modulo H 15 cm /sq.m. Modulo H 17 cm /sq.m. Modulo H 20 cm /sq.m. Modulo H 27 cm /sq.m. Modulo H 30 cm Modulo H 35 cm /sq.m. Modulo H 40 cm /sq.m. Modulo H 45 cm /sq.m. Modulo H 50 cm /sq.m. Modulo H 55 cm Modulo H 60 cm /sq.m. Modulo H 65 cm /sq.m. Modulo H 70 cm /sq.m. /sq.m. /sq.m. B) Plastic panels with fitting joint, type FERMAGETTO, close up the MODULO thus preventing
concrete from penetrating inside the crawl space and making the construction of outside kerbs and foundation beams possible while casting. PRICE LIST FOR FERMAGETTO MODULO ARTICLE PRICE Fermagetto Modulo H 13 cm /each Fermagetto Modulo H 15 cm /each Fermagetto Modulo H 17 cm /each Fermagetto Modulo H 20 cm Fermagetto Modulo H 27 cm /each Fermagetto Modulo H 30 cm /each Fermagetto Modulo H 35 cm /each Fermagetto Modulo H 40 cm /each Fermagetto Modulo H 45 cm /each /each Fermagetto Modulo H 50 cm /each Fermagetto Modulo H 55 cm /each Fermagetto Modulo H 60 cm /each Fermagetto Modulo H 65 cm /each Fermagetto Modulo H 70 cm /each TYPES OF WORK EXECUTED Ventilated floor Supply of disposable formworks, type MODULO by Geoplast srl, made of higly resistant atoxic, recycled plastic materials - height as per project specifications - inclusive of scrap. Dry laying of modular elements over pre-arranged foundation, as per projet specifications Supply and laying of res
istance electro-soldered net (minimum dimension - 6 mm, with 20x20 cm mesh, or as per project specifications), inclusive of scrap all over the MODULO. Supply and casting of concrete RCK’ 250 kg/cm2 for the filling up of the formworks and for the upper slab thickness s ... cm. Work executed with or without the help of pumps. Vibration puddling PRICE LIST FOR VENTILATED FLOOR ARTICLE PRICE Modulo H 3 cm with slab thickness s= /sq.m. Modulo H 6 cm with slab thickness s= /sq.m. Modulo H 9 cm with slab thickness s= /sq.m. Modulo H 13 cm with slab thickness s= Modulo H 15 cm with slab thickness s= /sq.m. Modulo H 17 cm with slab thickness s= /sq.m. Modulo H 20 cm with slab thickness s= /sq.m. Modulo H 27 cm with slab thickness s= /sq.m. Modulo H 30 cm with slab thickness s= Modulo H 35 cm with slab thickness s= /sq.m. Modulo H 40 cm with slab thickness s= /sq.m. Modulo H 45 cm with slab thickness s= /sq.m. Modulo H 50 cm with slab thickness s= /sq.m. Modulo H 55 cm
with slab thickness s= Modulo H 60 cm with slab thickness s= /sq.m. Modulo H 65 cm with slab thickness s= /sq.m. Modulo H 70 cm with slab thickness s= /sq.m. /sq.m. /sq.m. /sq.m. Reinforcement of foundation pillars. Supplying of fitting plastic panels, type FERMAGETTO MODULO, for closing up the MODULO - height as per project specifications. Placing of fitting panels, inclusive of scrap due to cuts for making holes for air ducts. PRICE LIST FOR FERMAGETTO MODULO ARTICLE PRICE Fermagetto Modulo H 13 cm /each Fermagetto Modulo H 15 cm /each Fermagetto Modulo H 17 cm /each Fermagetto Modulo H 20 cm /each Fermagetto Modulo H 27 cm /each Fermagetto Modulo H 30 cm /each Fermagetto Modulo H 35 cm /each Fermagetto Modulo H 40 cm /each Fermagetto Modulo H 45 cm /each Fermagetto Modulo H 50 cm /each Fermagetto Modulo H 55 cm /each Fermagetto Modulo H 60 cm /each Fermagetto Modulo H 65 cm /each Fermagetto Modulo H 70 cm /each Ventilation ducts Making of 80
/120 mm diameter holes on the outside walls, each at a distance of 3.50/4.00 metres from the other. For a better ventilation these will have to be made at a higher level on the south, warmer side of the building rather than the north, colder side. In case there are portions of crawl space inside the foundation beams, they will have to be connected with the external ones. Supply and installation of PVC pipes Ø 80/120 mm as per project specifications possibly provided with external stainless steel grates with anti-insect plastic nets: PRICE LIST VENTILATION DUCTS ARTICLE PVC pipes O 80/120 mm PRICE /m. PRICE ANALYSIS MODULO H 27 ART. NUMBER ARTICLE CODE DESCRIPTION UNIT OF MEASURE ...1-a Ventilated crawl space type Modulo * 1) with modulo h cm 27 a) with cope superior to cm 5 CAT. ART. MU A LABOUR 1 unskilled worker for laying Modulo and electrosoldered net mesh 2 skilled worker for Operaio casting concretespecializzato per getto calcestruzzo B MATERIALS AND SUPPLI
ES 1 QUANTITY sq.m. UNIT COST SUBTOTAL hour 0,020 20 0,40 hour 0,100 22 2,20 supply of MODULO and scrap sq.m. 1,010 9,50 9,60 2 concrete R'bk250 for filling up the MODULO c.m. 0,040 62,00 2,48 3 concrete R'bk250 for slab c.m. 0,050 62,00 3,10 4 electro-soldered net 6mm 20X20cm sq.m. 1,000 1,10 1,10 C FREIGHT AND CARRIAGE 1 Carriage from Grantorto (PD) to building yard corpus 1,000 0,65 0,65 2 sundries corpus 1,000 0,20 0,20 TOTAL AMOUNT 2,60 16,28 0,85 COSTS TOTAL 19,73 GENERAL CHARGES 3,02 COSTS AMOUNT + GENERAL CHARGES 22,75 BUILDER’S PROFITS 2,32 APPLICATION PRICE 25,07 ROUNDING OFF 25,07 ROUNDED OFF PRICE price of E:L: * Example of price analysis for Mod. 27 with a 5 cm floor slab % discount discounted price PRICE ANALYSIS MODULO H 40 ART. NUMBER ARTICLE CODE UNIT OF MEASURE DESCRIPTION ...1-a Ventilated crawl space type Modulo * 1) WITH Modulo h cm 40 a) with cope superior to cm 5 CAT. ART. MU A LABOUR
1 unskilled worker for laying MODULO and electrosoldered net mesh 2 skilled worker for Operaio casting concretespecializzato per getto calcestruzzo B MATERIALS AND SUPPLIES 1 QUANTITY sq.m. UNIT COST SUBTOTAL hour 0,020 20,00 0,40 hour 0,100 22,00 2,20 supply of MODULO and scrap sq.m. 1,010 10,50 10,61 2 concrete R'bk250 for filling up the MODULO c.m. 0,056 62,00 3,47 3 concrete R'bk250 for slab c.m. 0,050 62,00 3,10 4 electro-soldered net 6mm 20X20cm sq.m. 1,000 1,10 1,10 C FREIGHT AND CARRIAGE 1 Carriage from Grantorto (PD) to building yard corpus 1,000 0,65 0,65 2 sundries corpus 1,000 0,20 0,20 TOTAL AMOUNT 2,60 18,28 0,85 COSTS TOTAL 21,73 GENERAL CHARGES 3,30 COSTS AMOUNT + GENERAL CHARGES 25,03 BUILDER’S PROFITS 2,53 APPLICATION PRICE 27,56 ROUNDING OFF 27,56 ROUNDED OFF PRICE price of E:L: * Example of price analysis for Mod. 40 with a 5 cm floor slab % discount discounted price Sample 1 Sample 2 Sa
mple 3 Sample 4
