diff --git a/src/3.1_b.js b/src/3.1_b.js
index cd6e6b8..9332008 100644
--- a/src/3.1_b.js
+++ b/src/3.1_b.js
@@ -39,7 +39,7 @@ export default function b(di, de, du, zc_id) {
     /* du.enum_cfg_isolation_lnc_id = ['6', '7', '8', '9', '10', '11'] */
   } else if (
     ['8', '9', '11', '12', '13', '14', '15', '16', '17', '18', '19', '21'].includes(
-      de.enum_type_adjacence_id
+      de.enum_type_adjacence_id.toString()
     )
   ) {
     if (de.surface_aue === 0) {
diff --git a/src/3.2.1_mur.js b/src/3.2.1_mur.js
index 05078ae..098b0b9 100644
--- a/src/3.2.1_mur.js
+++ b/src/3.2.1_mur.js
@@ -12,7 +12,7 @@ function tv_umur0(di, de, du) {
   const matcher = {
     enum_materiaux_structure_mur_id: de.enum_materiaux_structure_mur_id
   };
-  if (!['1', '20'].includes(de.enum_materiaux_structure_mur_id)) {
+  if (!['1', '20'].includes(de.enum_materiaux_structure_mur_id.toString())) {
     // 1: inconnu, 20: cloison de platree, pas concerné par les epaisseurs
     // TODO not float, get from csv
     matcher.epaisseur_structure = requestInput(de, du, 'epaisseur_structure', 'float');
diff --git a/src/3.3_baie_vitree.js b/src/3.3_baie_vitree.js
index 5c25bcf..f3157df 100644
--- a/src/3.3_baie_vitree.js
+++ b/src/3.3_baie_vitree.js
@@ -27,7 +27,10 @@ function tv_uw(di, de, du) {
     enum_type_baie_id: requestInputID(de, du, 'type_baie')
   };
 
-  if (matcher.enum_type_baie_id && !['1', '2', '3'].includes(matcher.enum_type_baie_id)) {
+  if (
+    matcher.enum_type_baie_id &&
+    !['1', '2', '3'].includes(matcher.enum_type_baie_id.toString())
+  ) {
     matcher.enum_type_materiaux_menuiserie_id = requestInputID(de, du, 'type_materiaux_menuiserie');
     matcher.ug = `^${di.ug}$`;
   }
diff --git a/src/5_conso_ventilation.js b/src/5_conso_ventilation.js
index 7e835a2..966df7e 100644
--- a/src/5_conso_ventilation.js
+++ b/src/5_conso_ventilation.js
@@ -1,4 +1,5 @@
 import { requestInput } from './utils.js';
+import { DECIMAL_PRECISION } from './constants.js';
 
 const pvent_moy_maison = {
   'simple flux auto': {
@@ -42,7 +43,7 @@ function getCoefficient(th, hybride) {
     return 1;
   }
   const ratio = th === 'maison' ? 14 : 28;
-  return +parseFloat(ratio / (24 * 7)).toFixed(3);
+  return +parseFloat(ratio / (24 * 7)).toFixed(DECIMAL_PRECISION);
 }
 
 export default function calc_pvent(di, de, du, th) {
@@ -116,11 +117,11 @@ export default function calc_pvent(di, de, du, th) {
 
   const coef = getCoefficient(th, hybride);
   if (th === 'maison') {
-    di.pvent_moy = parseFloat(pvent_moy_maison[type][post_2012] * coef).toFixed(3);
+    di.pvent_moy = parseFloat(pvent_moy_maison[type][post_2012] * coef).toFixed(DECIMAL_PRECISION);
   } else {
     const pvent = pvent_immeuble[type][post_2012];
     const sv = requestInput(de, du, 'surface_ventile', 'float');
-    di.pvent_moy = parseFloat(pvent * di.qvarep_conv * sv * coef).toFixed(3);
+    di.pvent_moy = parseFloat(pvent * di.qvarep_conv * sv * coef).toFixed(DECIMAL_PRECISION);
   }
   di.conso_auxiliaire_ventilation = 8.76 * di.pvent_moy;
 }
diff --git a/src/constants.js b/src/constants.js
new file mode 100644
index 0000000..75d5dee
--- /dev/null
+++ b/src/constants.js
@@ -0,0 +1 @@
+export const DECIMAL_PRECISION = 8;